1
|
Cunha SMF, Lam S, Mallard B, Karrow NA, Cánovas Á. Genomic Regions Associated with Resistance to Gastrointestinal Nematode Parasites in Sheep-A Review. Genes (Basel) 2024; 15:187. [PMID: 38397178 PMCID: PMC10888242 DOI: 10.3390/genes15020187] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/27/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
Gastrointestinal nematodes (GINs) can be a major constraint and global challenge to the sheep industry. These nematodes infect the small intestine and abomasum of grazing sheep, causing symptoms such as weight loss, diarrhea, hypoproteinemia, and anemia, which can lead to death. The use of anthelmintics to treat infected animals has led to GIN resistance, and excessive use of these drugs has resulted in residue traced in food and the environment. Resistance to GINs can be measured using multiple traits, including fecal egg count (FEC), Faffa Malan Chart scores, hematocrit, packed cell volume, eosinophilia, immunoglobulin (Ig), and dagginess scores. Genetic variation among animals exists, and understanding these differences can help identify genomic regions associated with resistance to GINs in sheep. Genes playing important roles in the immune system were identified in several studies in this review, such as the CFI and MUC15 genes. Results from several studies showed overlapping quantitative trait loci (QTLs) associated with multiple traits measuring resistance to GINs, mainly FEC. The discovery of genomic regions, positional candidate genes, and QTLs associated with resistance to GINs can help increase and accelerate genetic gains in sheep breeding programs and reveal the genetic basis and biological mechanisms underlying this trait.
Collapse
Affiliation(s)
- Samla Marques Freire Cunha
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, 50 Stone Rd E, Guelph, ON N1G 2W1, Canada; (S.M.F.C.); (S.L.); (B.M.); (N.A.K.)
| | - Stephanie Lam
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, 50 Stone Rd E, Guelph, ON N1G 2W1, Canada; (S.M.F.C.); (S.L.); (B.M.); (N.A.K.)
| | - Bonnie Mallard
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, 50 Stone Rd E, Guelph, ON N1G 2W1, Canada; (S.M.F.C.); (S.L.); (B.M.); (N.A.K.)
- Department of Pathobiology, University of Guelph, 50 Stone Rd E, Guelph, ON N1G 2W1, Canada
| | - Niel A. Karrow
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, 50 Stone Rd E, Guelph, ON N1G 2W1, Canada; (S.M.F.C.); (S.L.); (B.M.); (N.A.K.)
| | - Ángela Cánovas
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, 50 Stone Rd E, Guelph, ON N1G 2W1, Canada; (S.M.F.C.); (S.L.); (B.M.); (N.A.K.)
| |
Collapse
|
2
|
Asselstine V, Medrano JF, Muniz MMM, Mallard BA, Karrow NA, Cánovas A. Novel lncRNA regulatory elements in milk somatic cells of Holstein dairy cows associated with mastitis. Commun Biol 2024; 7:98. [PMID: 38225372 PMCID: PMC10789785 DOI: 10.1038/s42003-024-05764-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/01/2024] [Indexed: 01/17/2024] Open
Abstract
Despite regulatory elements such as long non - coding RNAs representing most of the transcriptome, the functional understanding of long non - coding RNAs in relation to major health conditions including bovine mastitis is limited. This study examined the milk somatic cell transcriptome from udder quarters of 6 Holstein dairy cows to identify differentially expressed long non - coding RNAs using RNA - Sequencing. Ninety - four differentially expressed long non - coding RNAs are identified, 5 of which are previously annotated for gene name and length, 11 are annotated for gene name and 78 are novel, having no gene name or length previously annotated. Significant inflammatory response and regulation of immune response pathways (false discovery rate < 0.05) are associated with the differentially expressed long non - coding RNAs. QTL annotation analysis revealed 31 QTL previously annotated in the genomic regions of the 94 differentially expressed long non - coding RNAs, and the majority are associated with milk traits. This research provides a better understanding of long non - coding RNAs regulatory elements in milk somatic cells, which may enhance current breeding strategies for more adaptable or high mastitis resistant cattle.
Collapse
Affiliation(s)
- Victoria Asselstine
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
| | - Juan F Medrano
- Department of Animal Science, University of California-Davis, 95616, Davis, CA, USA
| | - Malane M M Muniz
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
| | - Bonnie A Mallard
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, N1G 2W1, Guelph, ON, Canada
| | - Niel A Karrow
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
| | - Angela Cánovas
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada.
| |
Collapse
|
3
|
Chen Y, Lawson R, Shandilya U, Chiasson MA, Karrow NA, Huyben D. Dietary protein, lipid and insect meal on growth, plasma biochemistry and hepatic immune expression of lake whitefish ( Coregonus clupeaformis). Fish Shellfish Immunol Rep 2023; 5:100111. [PMID: 37456711 PMCID: PMC10339128 DOI: 10.1016/j.fsirep.2023.100111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023] Open
Abstract
Studies are lacking that investigate the dietary nutrient requirements of lake whitefish (Coregonus clupeaformis), a newly farmed fish species in Ontario, Canada. Dietary levels of protein and lipid must be optimized to ensure high growth performance for the commercial success of this species. Additionally, the inclusion of insect meal in the diet may improve growth and immune response. The objective of this study was to evaluate the effects of dietary protein:lipid ratios and insect meal as a feed additive on the growth performance and hepatic immune function of juvenile lake whitefish (301 ± 10 g). A 16-week (112 day) trial was performed with five diets including a commercial control diet (BCC), and four experimental diets with high or low levels of protein (54 and 48%, respectively) and lipid (18 and 12%, respectively). The high protein dietary groups contained 5% of full-fat black soldier fly larvae (Hermetia illucens). Fish weights, viscera, liver, and blood were collected for further analysis. Specific growth rate, thermal growth coefficient and weight gain were significantly higher in fish fed with the BCC and high protein high lipid (HPHL) diets. However, viscerosomatic index was found to be significantly higher in fish fed the BCC diet, thus HPHL is more optimal for non-visceral weight gain. Higher levels of plasma phosphorus, aspartate aminotransferase and potassium indicated poor growth and stress in fish fed low lipid diets. Relative expression of HSP70, involved in cellular repair, was significantly downregulated in fish fed high lipid diets, and no effects were found on the expression of innate immune and oxidative stress genes. Also, IL8 (CXCL8) and catalase were upregulated (non-significant) in fish fed the HPHL diet with the largest weight gain. No effects of insects were found on growth, plasma biochemistry or gene expression, which suggests 5% dietary inclusion was too low. Overall, we recommend a HPHL diet for the cultivation of lake whitefish based on improved growth performance, low viscera weight, improved plasma biochemistry and downregulation of cellular repair genes.
Collapse
Affiliation(s)
- Yubing Chen
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Rebecca Lawson
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Umesh Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Marcia A. Chiasson
- Ontario Aquaculture Research Centre, Office of Research, University of Guelph, Elora, ON, Canada
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - David Huyben
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| |
Collapse
|
4
|
Shandilya UK, Sharma A, Xu R, Muniz MMM, Karrow NA. Evaluation of Immunomodulatory Effects of Fusarium Mycotoxins Using Bacterial Endotoxin-Stimulated Bovine Epithelial Cells and Macrophages in Co-Culture. Genes (Basel) 2023; 14:2014. [PMID: 38002956 PMCID: PMC10671659 DOI: 10.3390/genes14112014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/20/2023] [Accepted: 10/26/2023] [Indexed: 11/26/2023] Open
Abstract
Mycotoxins are secondary metabolites produced by a variety of fungi that contaminate animal food and feeds and are capable of inducing a wide range of toxicities. Predictive in vitro models represent valuable substitutes for animal experiments to assess the toxicity of mycotoxins. The complexities of the interactions between epithelial and innate immune cells, vital for upholding barrier integrity and averting infections, remain inadequately understood. In the current study, a co-culture model of bovine epithelial cells (MAC-T) and macrophages (BoMac) was used to investigate the impact of exposure to Fusarium mycotoxins, namely deoxynivalenol (DON), zearalenone (ZEN), enniatin B (ENB), and beauvericin (BEA), on the inflammatory response elicited by the bacterial lipopolysaccharide (LPS) endotoxin. The MAC-T cells and BoMac were seeded on the apical side of a Transwell membrane and in the lower chamber, respectively, and mycotoxin exposure on the apical side of the membrane was carried out with the different mycotoxins (LC20; concentrations that elicited 20% cytotoxicity) for 48 h followed by an LPS immunity challenge for 24 h. The culture supernatants were collected from the basolateral compartment and these samples were submitted for cytokine/chemokine multiplex analysis. RNA-Seq analysis was performed using total RNA extracted from the MAC-T cells to acquire a more detailed insight into their cellular functions. The multiplex analysis indicated that IFN-γ, IL-1α, IL-8, and MCP-1 were significantly induced post-DON treatment when compared to control cells, and levels of IL-1α and IL-8 were enhanced significantly in all mycotoxin-treated groups post-LPS challenge. Analysis of the sequencing results showed that there were 341, 357, and 318 differentially expressed MAC-T cell genes that were up-regulated in the DON, ENB, and BEA groups, respectively. Gene ontology and pathway analysis revealed that these DEGs were significantly enriched in various biological processes and pathways related to inflammation, apoptosis signaling, and Wnt signaling. These results provide a comprehensive analysis of the co-culture cytokine/chemokine production and MAC-T cells' gene expression profiles elicited by Fusarium mycotoxins, which further contributes to the understanding of early endotoxemia post-mycotoxin exposure.
Collapse
Affiliation(s)
- Umesh K Shandilya
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E., Guelph, ON N1G2W1, Canada
| | - Ankita Sharma
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E., Guelph, ON N1G2W1, Canada
| | - Ran Xu
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E., Guelph, ON N1G2W1, Canada
| | - Maria Malane M Muniz
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E., Guelph, ON N1G2W1, Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E., Guelph, ON N1G2W1, Canada
| |
Collapse
|
5
|
Tieu S, Charchoglyan A, Paulsen L, Wagter-Lesperance LC, Shandilya UK, Bridle BW, Mallard BA, Karrow NA. N-Acetylcysteine and Its Immunomodulatory Properties in Humans and Domesticated Animals. Antioxidants (Basel) 2023; 12:1867. [PMID: 37891946 PMCID: PMC10604897 DOI: 10.3390/antiox12101867] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
N-acetylcysteine (NAC), an acetylated derivative of the amino acid L-cysteine, has been widely used as a mucolytic agent and antidote for acetaminophen overdose since the 1960s and the 1980s, respectively. NAC possesses antioxidant, cytoprotective, anti-inflammatory, antimicrobial, and mucolytic properties, making it a promising therapeutic agent for a wide range of diseases in both humans and domesticated animals. Oxidative stress and inflammation play a major role in the onset and progression of all these diseases. NAC's primary role is to replenish glutathione (GSH) stores, the master antioxidant in all tissues; however, it can also reduce levels of pro-inflammatory tumor necrosis factor-alpha (TNF-∝) and interleukins (IL-6 and IL-1β), inhibit the formation of microbial biofilms and destroy biofilms, and break down disulfide bonds between mucin molecules. Many experimental studies have been conducted on the use of NAC to address a wide range of pathological conditions; however, its effectiveness in clinical trials remains limited and studies often have conflicting results. The purpose of this review is to provide a concise overview of promising NAC usages for the treatment of different human and domestic animal disorders.
Collapse
Affiliation(s)
- Sophie Tieu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.T.); (U.K.S.)
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.P.); (L.C.W.-L.); (B.W.B.); (B.A.M.)
| | - Armen Charchoglyan
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
- Advanced Analysis Centre, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Lauryn Paulsen
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.P.); (L.C.W.-L.); (B.W.B.); (B.A.M.)
| | - Lauri C. Wagter-Lesperance
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.P.); (L.C.W.-L.); (B.W.B.); (B.A.M.)
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
| | - Umesh K. Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.T.); (U.K.S.)
| | - Byram W. Bridle
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.P.); (L.C.W.-L.); (B.W.B.); (B.A.M.)
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
| | - Bonnie A. Mallard
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.P.); (L.C.W.-L.); (B.W.B.); (B.A.M.)
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.T.); (U.K.S.)
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
| |
Collapse
|
6
|
Wang MX, Shandilya UK, Wu X, Huyben D, Karrow NA. Assessing Larval Zebrafish Survival and Gene Expression Following Sodium Butyrate Exposure and Subsequent Lethal Bacterial Lipopolysaccharide (LPS) Endotoxin Challenge. Toxins (Basel) 2023; 15:588. [PMID: 37888619 PMCID: PMC10610854 DOI: 10.3390/toxins15100588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 10/28/2023] Open
Abstract
As aquaculture production continues to grow, producers are looking for more sustainable methods to promote growth and increase fish health and survival. Butyrate is a short-chain fatty acid (SCFA) with considerable benefits to gut health, and in recent years, butyrate has been commonly used as an alternative to antimicrobials in livestock production. In this study, we aimed to assess the protective effects of sodium butyrate (NaB) on larval zebrafish subjected to a lethal Pseudomonas aeruginosa lipopolysaccharide (LPS) endotoxin challenge and to elucidate potential protective mechanisms of action. Larval zebrafish were pre-treated with 0, 3000, or 6000 μM NaB for 24 h at 72 h post-fertilization (hpf), then immune challenged for 24 h with 60 μg/mL of LPS at 96 hpf. Our results demonstrate that larval zebrafish pre-treated with 6000 μM of NaB prior to lethal LPS challenge experienced significantly increased survival by 40%, and this same level of NaB significantly down-regulated the expression of pro-inflammatory Tumor Necrosis Factor α (TNF-alpha). Findings from this study are consistent with the beneficial effects of NaB on other vertebrate species and support the potential use of NaB in aquaculture.
Collapse
Affiliation(s)
- Mary X Wang
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Umesh K Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Xiang Wu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - David Huyben
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| |
Collapse
|
7
|
Ghulam Mohyuddin S, Liang Y, Xia Y, Wang M, Zhang H, Li M, Yang Z, A. Karrow N, Mao Y. Identification and Classification of Long Non-Coding RNAs in the Mammary Gland of the Holstein Cow. Int J Mol Sci 2023; 24:13585. [PMID: 37686392 PMCID: PMC10487475 DOI: 10.3390/ijms241713585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
The mammary glands, responsible for milk secretion, are regulated at a local level by various hormones, growth factors, non-coding RNAs, and other elements. Recent research has discovered the presence of lncRNAs in these glands, with suggestions that they may be essential for the maintenance and function of mammary glands. Besides directly controlling the gene and protein expression, lncRNAs are believed to play a significant part in numerous physiological and pathological processes. This study focused on examining the mammary gland tissues of Chinese Holstein cows, to identify and categorize long non-coding RNAs (lncRNAs). The research intended to distinguish lncRNAs in the mammary tissues of Holstein cows and contrast them between lactation and non-lactation periods. In this study, mammary gland tissues were sampled from three Holstein cows in early lactation (n = 3, 30 days postpartum) and non-lactation (n = 3, 315 days postpartum) on a large dairy farm in Jiangsu province. Mammary tissue samples were collected during early lactation and again during non-lactation. In total, we detected 1905 lncRNAs, with 57.3% being 500 bp and 612 intronic lncRNAs. The exon count for lncRNAs varied from 2 to 10. It was observed that 96 lncRNA expressions markedly differed between the two stages, with 83 genes being upregulated and 53 downregulated. Enrichment analysis results revealed that Gene Ontology (GO) analysis was primarily abundant in cellular processes. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis indicated that target genes were predominantly abundant in metabolic pathways, fatty acid biosynthesis, the immune system, and glycosphingolipid biosynthesis. This study analyzed the expression profile and characteristics of lncRNAs in the mammary gland tissues of Holstein cows during both lactation and non-lactation stages, forming a foundation for further investigation into the functional roles of lncRNAs in Holstein cows throughout lactation.
Collapse
Affiliation(s)
- Sahar Ghulam Mohyuddin
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (S.G.M.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Yan Liang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (S.G.M.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Yuxin Xia
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (S.G.M.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Mengqi Wang
- Department of Animal Science, Laval University, Québec, QC G1V-0A6, Canada
| | - Huimin Zhang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (S.G.M.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Mingxun Li
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (S.G.M.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Zhangping Yang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (S.G.M.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Niel A. Karrow
- Center for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G-2W1, Canada
| | - Yongjiang Mao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (S.G.M.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| |
Collapse
|
8
|
Shandilya UK, Wu X, McAllister C, Mutharia L, Karrow NA. Impact of Mycobacterium avium subsp. paratuberculosis infection on bovine IL10RA knockout mammary epithelial (MAC-T) cells. In Vitro Cell Dev Biol Anim 2023; 59:214-223. [PMID: 37071310 DOI: 10.1007/s11626-023-00758-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/15/2023] [Indexed: 04/19/2023]
Abstract
Mycobacterium avium subsp. Paratuberculosis (MAP) is an intracellular pathogen that causes Johne's disease (JD) in cattle and other ruminants. IL10RA encodes the alpha chain of the IL-10 receptor that binds the cytokine IL-10, and is one of the candidate genes that have been found to be associated with JD infection status. In this study, a previously developed IL10RA knockout (IL10RAKO) bovine mammary epithelial (MAC-T) cell line and wild-type (WT) MAC-T cells were infected with live MAP for 72 h to identify potential immunoregulatory miRNAs, inflammatory genes, and cytokines/chemokines impacted by MAP infection in the presence/absence of IL10RA. Cytokine and chemokine concentrations in culture supernatants were measured by multiplexing immunoassay. Total RNA was extracted from the MAC-T cells, and qPCR was performed to determine the expression of inflammatory genes and selected bovine miRNAs. Results showed that the levels of TNF-α, IL-6, CXCL8, CXCL10, CCL2, and CCL3 were significantly induced in WT MAC-T cells and IL-10 was significantly inhibited post-MAP infection. However, IL10RAKO MAC-T cells had greater secretion of TNF-α, IL-6, IFN-γ, CCL3, CCL4, CXCL8, and CXCL10, and lower secretion of VEGF-α. Moreover, the expression of inflammatory genes (TNF-α, IL-1α, IL-6) was also more significantly induced in IL10RAKO cells than in WT MAC-T cells post-MAP-infection, and unlike the WT cells, anti-inflammatory cytokines IL-10 and SOCS3 and chemokines CCL2 were not significantly induced. In addition, the expression of miRNAs (miR133b, miR-92a, and miR-184) was increased in WT MAC-T cells post-MAP-infection; however, there was no significant induction of these miRNAs in the IL10RAKO cells, which suggests IL10 receptor is somehow involved in regulating the miRNA response to MAP infection. Target gene function analysis further suggests that miR-92a may be involved in interleukin signaling, and miR-133b and miR-184 may be involved in other signaling pathways. These findings support the involvement of IL10RA in the regulation of innate immune response to MAP.
Collapse
Affiliation(s)
- Umesh K Shandilya
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E, Guelph, ON, N1G2W1, Canada
| | - Xiang Wu
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E, Guelph, ON, N1G2W1, Canada
| | - Caitlin McAllister
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E, Guelph, ON, N1G2W1, Canada
| | - Lucy Mutharia
- Department of Molecular and Cellular Biology, University of Guelph, 50 Stone Rd. E, Guelph, ON, Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E, Guelph, ON, N1G2W1, Canada.
| |
Collapse
|
9
|
Ogilvie L, Van Winters B, Mion B, King K, Spricigo JFW, Karrow NA, Steele MA, Ribeiro ES. Effects of replacing inorganic salts of trace minerals with organic trace minerals in the diet of prepartum cows on quality of colostrum and immunity of newborn calves. J Dairy Sci 2023; 106:3493-3508. [PMID: 37028969 DOI: 10.3168/jds.2022-21913] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 12/09/2022] [Indexed: 04/08/2023]
Abstract
Our objectives were to evaluate the impact of supplementary trace mineral (TM) form-inorganic salts (STM; Co, Cu, Mn, Zn sulfates, and Na selenite) or organic (OTM; Co, Cu, Mn, Zn proteinates, and selenized yeast)-in the prepartum diet on quantity and quality of colostrum, passive immunity, antioxidant biomarkers, cytokine responses to lipopolysaccharide (LPS), health, and growth of newborn calves. Pregnant heifers (n = 100) and cows (n = 173) were enrolled at 45 d before calving, blocked by parity and body condition score, and allocated randomly to STM (50 heifers; 86 cows) or OTM (50 heifers; 87 cows) supplementation. Cows in both treatments were fed the same diet, except for the source of supplementary TM. Within 2 h of calving, dams and calves were separated, colostrum was harvested, the yield was measured, and a sample was saved for posterior analyses of colostrum quality. A subgroup of calves (n = 68) had a blood sample collected before colostrum feeding. After colostrum feeding, all samples and data collection were limited to 163 calves (STM = 82; OTM = 81) fed 3 L of good quality (Brix% >22) maternal colostrum via nipple bottle minutes after harvesting. Concentration of IgG in colostrum and serum was determined 24 h after colostrum feeding using radial immunodiffusion. Concentration of TM in colostrum and serum were performed by inductively coupled plasma mass spectrometry. Activity of glutathione peroxidase, ferric reducing ability of plasma, and concentration of superoxide dismutase were evaluated in plasma by colorimetric assays. Ex vivo whole blood stimulation with LPS was performed on d 7 of life to evaluate cytokine responses in a subgroup of 66 calves. Health events were recorded from birth to weaning, and body weight was recorded at birth (all calves) and on d 30 and 60 (heifers only). Continuous variables were analyzed by ANOVA and binary responses were analyzed by logistic regression. Complete replacement of STM by OTM in prepartum diet resulted in greater concentration of Se (461 vs. 543 ± 7 μg/g; ± SEM) but did not alter the concentration or total mass of other TM and IgG in colostrum. Female calves of the OTM group had greater concentration of Se in serum at birth (0.23 vs. 0.37 ± 0.05 μg/mL), were lighter in weight at birth (40.9 vs. 38.8 ± 0.6 kg) and weaning (93.2 vs. 89.7 ± 1.6 kg) than those of the STM group. Maternal treatments did not affect passive immunity or antioxidant biomarkers. On d 7, basal concentrations (log10 of concentration in pg/mL) of IFNγ (0.70 vs. 0.95 ± 0.083) and LPS-stimulated concentrations of CC chemokine ligand 2 (CCL2; 2.45 vs. 2.54 ± 0.026), CC chemokine ligand 3 (CCL3; 2.63 vs. 2.76 ± 0.038), IL-1α (2.32 vs. 2.49 ± 0.054), and IL-1β (3.62 vs. 3.86 ± 0.067) were greater in OTM than in STM. Supplementation with OTM in pregnant heifers, but not in pregnant cows, reduced the incidence of preweaning health problems in their calves (36.4 vs. 11.5%). Complete replacement of STM by OTM in the prepartum diet did not cause major changes in colostrum quality, passive immunity, and antioxidant capacity, but increased cytokine and chemokine responses to LPS on d 7 of life and benefited preweaning health of calves born to primiparous cows.
Collapse
Affiliation(s)
- L Ogilvie
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1Z 2W1
| | - B Van Winters
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1Z 2W1
| | - B Mion
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1Z 2W1
| | - K King
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1Z 2W1
| | - J F W Spricigo
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1Z 2W1
| | - N A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1Z 2W1
| | - M A Steele
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1Z 2W1
| | - E S Ribeiro
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1Z 2W1.
| |
Collapse
|
10
|
Sullivan T, Sharma A, Lamers K, Mallard BA, Cánovas A, Karrow NA. Immunotolerance of dairy heifers in response to repeated exposure to bacterial lipopolysaccharide endotoxin. Vet Immunol Immunopathol 2023; 259:110579. [PMID: 36948027 DOI: 10.1016/j.vetimm.2023.110579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/30/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
Dairy cattle face a variety of stressful events on a daily basis. More specifically, climate change has resulted in more frequent heat stress events that increase the incidence of chronic bacterial infections by inducing conditions like leaky gut syndrome, whereby the integrity of the intestinal epithelium is compromised allowing for luminal bacterial lipopolysaccharide (LPS) endotoxin to infiltrate the host's bloodstream resulting in acute or chronic systemic stimulation of the innate immune system. Repeated exposure to LPS over a short period of time is reported to induce immunotolerance within the host. This LPS tolerance is an essential immunohomeostatic response that can protect against over activation of the inflammatory response during subsequent exposure to LPS. In the present study, Holstein calves (n = 20) were initially stress challenged with either saline, or 100, 200 or 400 ng/kg of LPS administered intramuscular, and again re-challenged with 200 ng/kg of LPS 2-weeks later. Serum was collected every 2 hr for 6 hr to profile changes in circulatory stress biomarkers after the repeated LPS exposures. Heifers that were initially challenged with 100, 200 and 400 ng/kg of LPS demonstrated significantly attenuated cortisol responses in the second challenge (p < 0.01, 0.01 and 0.05, respectively), whereas control animals who previously received saline demonstrated a strong cortisol response at 2 hr after receiving 200 ng/kg of LPS (p < 0.05). The cytokine/chemokine (IL-6, CCL2, CCL3 and CCL4) responses were also attenuated during the LPS rechallenge (p < 0.05). Finally, microRNA expression profiles were determined to assess the epigenetic response to repeated LPS exposure. Interestingly, miR-31 and miR-223 were downregulated in response to the second LPS challenge. The present study demonstrates the dynamic nature of the stress response in dairy cattle as it relates to the development of LPS tolerance. Understanding the roles of various stress biomarkers in the context of innate immune cell tolerance is essential for evaluating their impact on immune system homeostasis.
Collapse
Affiliation(s)
- T Sullivan
- Department of Animal Biosciences, Center for Genetic Improvement of Livestock, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - A Sharma
- Department of Animal Biosciences, Center for Genetic Improvement of Livestock, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - K Lamers
- Department of Animal Biosciences, Center for Genetic Improvement of Livestock, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - B A Mallard
- Department of Pathobiology, Ontario Veterinary College, Guelph, ON N1G 2W1, Canada
| | - A Cánovas
- Department of Animal Biosciences, Center for Genetic Improvement of Livestock, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - N A Karrow
- Department of Animal Biosciences, Center for Genetic Improvement of Livestock, University of Guelph, Guelph, ON N1G 2W1, Canada.
| |
Collapse
|
11
|
Shandilya UK, Sharma A, Naylor D, Canovas A, Mallard B, Karrow NA. Expression Profile of miRNA from High, Middle, and Low Stress-Responding Sheep during Bacterial Endotoxin Challenge. Animals (Basel) 2023; 13:ani13030508. [PMID: 36766397 PMCID: PMC9913542 DOI: 10.3390/ani13030508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
Animals respond to stress by activating a wide array of physiological and behavioral responses that are collectively referred to as the stress response. MicroRNAs (miRNAs) are small, noncoding RNAs that play key roles in the regulation of homeostasis. There are many reports demonstrating examples of stress-induced miRNA expression profiles. The aim of this study was to determine the circulatory miRNA profile of variable stress-responding lambs (n = 112) categorized based on their cortisol levels as high (HSR, 336.2 ± 27.9 nmol/L), middle (MSR, 147.3 ±9.5 nmol/L), and low (LSR, 32.1 ± 10.4 nmol/L) stress responders post-LPS challenge (400 ng/kg iv). Blood was collected from the jugular vein at 0 (T0) and 4 h (T4) post-LPS challenge, and miRNAs were isolated from four animals from each group. An array of 84 miRNAs and 6 individual miRNAs were evaluated using qPCR. Among 90 miRNAs, there were 48 differentially expressed (DE) miRNAs (log fold change (FC) > 2 < log FC) in the HSR group, 46 in the MSR group, and 49 in the LSR group compared with T0 (control) samples. In the HSR group, three miRNAs, miR-485-5p, miR-1193-5p, and miR-3957-5p were significantly (p < 0.05) upregulated, while seven miRNAs, miR-376b-3p, miR-376c-3p, miR-411b-5p, miR-376a-3p, miR-376b-3p, miR-376c-3p, and miR-381-3p, were downregulated (p < 0.05) as compared to the LSR and MSR groups. Functional analysis of DE miRNAs revealed their roles in Ras and MAPK signaling, cytokine signaling, the adaptive immune system, and transcription pathways in the HSR phenotype, implicating a hyper-induced acute-phase response. In contrast, in the LSR group, enriched pathways included glucagon signaling metabolic regulation, the transportation of amino acids and ions, and the integration of energy metabolism. Taken together, these results indicate variation in the acute-phase response to an immune stress challenge, and these miRNAs are implicated in regulating responses within cortisol-based phenotypes.
Collapse
Affiliation(s)
- Umesh K. Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Ankita Sharma
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Danielle Naylor
- Department of Pathobiology, Ontario Veterinary College, Guelph, ON N1G 2W1, Canada
| | - Angela Canovas
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Bonnie Mallard
- Department of Pathobiology, Ontario Veterinary College, Guelph, ON N1G 2W1, Canada
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
- Correspondence:
| |
Collapse
|
12
|
Xu R, Yiannikouris A, Shandilya UK, Karrow NA. Comparative Assessment of Different Yeast Cell Wall-Based Mycotoxin Adsorbents Using a Model- and Bioassay-Based In Vitro Approach. Toxins (Basel) 2023; 15:toxins15020104. [PMID: 36728779 PMCID: PMC9959493 DOI: 10.3390/toxins15020104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Frequently reported occurrences of deoxynivalenol (DON), beauvericin (BEA), and, to a lesser extent, ochratoxin A (OTA) and citrinin (CIT) in ruminant feed or feedstuff could represent a significant concern regarding feed safety, animal health, and productivity. Inclusion of yeast cell wall-based mycotoxin adsorbents in animal feeds has been a common strategy to mitigate adverse effects of mycotoxins. In the present study, an in vitro approach combining adsorption isotherm models and bioassays was designed to assess the efficacy of yeast cell wall (YCW), yeast cell wall extract (YCWE), and a postbiotic yeast cell wall-based blend (PYCW) products at the inclusion rate of 0.5% (w/v) (ratio of adsorbent mass to buffer solution volume). The Hill's adsorption isotherm model was found to best describe the adsorption processes of DON, BEA, and CIT. Calculated binding potential for YCW and YCWE using the Hill's model exhibited the same ranking for mycotoxin adsorption, indicating that BEA had the highest adsorption rate, followed by DON and CIT, which was the least adsorbed. PYCW had the highest binding potential for BEA compared with YCW and YCWE. In contrast, the Freundlich isotherm model presented a good fit for OTA adsorption by all adsorbents and CIT adsorption by PYCW. Results indicated that YCW was the most efficacious for sequestering OTA, whereas YCWE was the least efficacious. PYCW showed greater efficacy at adsorbing OTA than CIT. All adsorbents exhibited high adsorption efficacy for BEA, with an overall percentage average of bound mycotoxin exceeding 60%, whereas moderate efficacies for the other mycotoxins were observed (up to 37%). Differences in adsorbent efficacy of each adsorbent significantly varied according to experimental concentrations tested for each given mycotoxin (p < 0.05). The cell viability results from the bioassay using a bovine mammary epithelial cell line (MAC-T) indicated that all tested adsorbents could potentially mitigate mycotoxin-related damage to bovine mammary epithelium. Results from our studies suggested that all tested adsorbents had the capacity to adsorb selected mycotoxins in vitro, which could support their use to mitigate their effects in vivo.
Collapse
Affiliation(s)
- Ran Xu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G2W1, Canada
| | - Alexandros Yiannikouris
- Alltech Inc., Center for Animal Nutrigenomics and Applied Animal Nutrition, 3031 Catnip Hill Road, Nicholasville, KY 40356, USA
| | - Umesh K. Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G2W1, Canada
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G2W1, Canada
- Correspondence:
| |
Collapse
|
13
|
Dixon S, Karrow NA, Borkowski E, Suarez-Vega A, Menzies PI, Kennedy D, Peregrine AS, Mallard BA, Cánovas Á. Identifying hepatic genes regulating the ovine response to gastrointestinal nematodes using RNA-Sequencing. Front Genet 2023; 14:1111426. [PMID: 36873933 PMCID: PMC9981634 DOI: 10.3389/fgene.2023.1111426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/17/2023] [Indexed: 02/19/2023] Open
Abstract
Gastrointestinal nematode (GIN) infections are considered the most important disease of grazing sheep and due to increasing anthelmintic resistance, chemical control alone is inadequate. Resistance to Gastrointestinal nematode infection is a heritable trait, and through natural selection many sheep breeds have higher resistance. Studying the transcriptome from GIN-exposed and GIN-unexposed sheep using RNA-Sequencing technology can provide measurements of transcript levels associated with the host response to Gastrointestinal nematode infection, and these transcripts may harbor genetic markers that can be used in selective breeding programs to enhance disease resistance. The objective of this study was to compare liver transcriptomes of sheep naturally exposed to Gastrointestinal nematode s, with either high or low parasite burdens, to GIN-unexposed control sheep in order to identify key regulator genes and biological processes associated with Gastrointestinal nematode infection. Differential gene expression analysis revealed no significant differentially expressed genes (DEG) between sheep with a high or low parasite burden (p-value ≤0.01; False Discovery Rate (FDR) ≤ 0.05; and Fold-Change (FC) of > ±2). However, when compared to the control group, low parasite burden sheep showed 146 differentially expressed genes (64 upregulated and 82 downregulated in the low parasite burden group relative to the control), and high parasite burden sheep showed 159 differentially expressed genes (57 upregulated and 102 downregulated in the low parasite burden group relative to the control) (p-value ≤0.01; FDR ≤0.05; and FC of > ±2). Among these two lists of significant differentially expressed genes, 86 differentially expressed genes (34 upregulated, 52 downregulated in the parasited group relative to the control) were found in common between the two parasite burden groups compared to the control (GIN-unexposed sheep). Functional analysis of these significant 86 differentially expressed genes found upregulated genes involved in immune response and downregulated genes involved in lipid metabolism. Results of this study offer insight into the liver transcriptome during natural Gastrointestinal nematode exposure that helps provide a better understanding of the key regulator genes involved in Gastrointestinal nematode infection in sheep.
Collapse
Affiliation(s)
- Samantha Dixon
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Niel A Karrow
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Emma Borkowski
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Aroa Suarez-Vega
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Paula I Menzies
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Delma Kennedy
- Ontario Ministry of Agriculture, Food and Rural Affairs, Guelph, ON, Canada
| | - Andrew S Peregrine
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Bonnie A Mallard
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Ángela Cánovas
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| |
Collapse
|
14
|
Xu R, Shandilya UK, Yiannikouris A, Karrow NA. Traditional and emerging Fusarium mycotoxins disrupt homeostasis of bovine mammary cells by altering cell permeability and innate immune function. Anim Nutr 2022; 12:388-397. [PMID: 36733782 PMCID: PMC9883199 DOI: 10.1016/j.aninu.2022.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 09/28/2022] [Accepted: 10/08/2022] [Indexed: 12/05/2022]
Abstract
High incidence of traditional and emerging Fusarium mycotoxins in cereal grains and silages can be a potential threat to feed safety and ruminants. Inadequate biodegradation of Fusarium mycotoxins by rumen microflora following ingestion of mycotoxin-contaminated feeds can lead to their circulatory transport to target tissues such as mammary gland. The bovine udder plays a pivotal role in maintaining milk yield and composition, thus, human health. However, toxic effects of Fusarium mycotoxins on bovine mammary gland are rarely studied. In this study, the bovine mammary epithelial cell line was used as an in-vitro model of bovine mammary epithelium to investigate effects of deoxynivalenol (DON), enniatin B (ENB) and beauvericin (BEA) on bovine mammary gland homeostasis. Results indicated that exposure to DON, ENB and BEA for 48 h significantly decreased cell viability in a concentration-dependent manner (P < 0.001). Exposure to DON at 0.39 μmol/L and BEA at 2.5 μmol/L for 48 h also decreased paracellular flux of FITC-40 kDa dextran (P < 0.05), whereas none of the mycotoxins affected transepithelial electrical resistance after 48 h exposure. The qPCR was performed for assessment of expression of gene coding tight junction (TJ) proteins, toll-like receptor 4 (TLR4) and cytokines after 4, 24 and 48 h of exposure. DON, ENB and BEA significantly upregulated the TJ protein zonula occludens-1, whereas markedly downregulated claudin 3 (P < 0.05). Exposure to DON at 1.35 μmol/L for 4 h significantly increased expression of occludin (P < 0.01). DON, ENB and BEA significant downregulated TLR4 (P < 0.05). In contrast, ENB markedly increased expression of cytokines interleukin-6 (IL-6) (P < 0.001), tumor necrosis factor α (TNF-a) (P < 0.05) and transforming growth factor-β (TGF-β) (P < 0.01). BEA significantly upregulated IL- 6 (P < 0.001) and TGF-β (P = 0.01), but downregulated TNF-α (P < 0.001). These results suggest that DON, ENB and BEA can disrupt mammary gland homeostasis by inducing cell death as well as altering its paracellular permeability and expression of genes involved in innate immune function.
Collapse
Affiliation(s)
- Ran Xu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Umesh K. Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Alexandros Yiannikouris
- Alltech Inc., Center for Animal Nutrigenomics and Applied Animal Nutrition, Nicholasville, KY 40356, USA
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada,Corresponding author.
| |
Collapse
|
15
|
Karrow NA, Shandilya UK, Pelech S, Wagter-Lesperance L, McLeod D, Bridle B, Mallard BA. Correction: Karrow et al. Maternal COVID-19 Vaccination and Its Potential Impact on Fetal and Neonatal Development. Vaccines 2021, 9, 1351. Vaccines (Basel) 2022; 10:vaccines10111925. [PMID: 36423074 PMCID: PMC9697509 DOI: 10.3390/vaccines10111925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 11/03/2022] [Indexed: 11/16/2022] Open
Abstract
In the original publication [...].
Collapse
Affiliation(s)
- Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
- Correspondence:
| | - Umesh K. Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Steven Pelech
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | | | - Deanna McLeod
- Kaleidoscope Strategic Inc., Toronto, ON M6R 1E7, Canada
| | - Byram Bridle
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Bonnie A. Mallard
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| |
Collapse
|
16
|
Tieu S, Charchoglyan A, Wagter-Lesperance L, Karimi K, Bridle BW, Karrow NA, Mallard BA. Immunoceuticals: Harnessing Their Immunomodulatory Potential to Promote Health and Wellness. Nutrients 2022; 14:nu14194075. [PMID: 36235727 PMCID: PMC9571036 DOI: 10.3390/nu14194075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/23/2022] [Accepted: 09/24/2022] [Indexed: 11/07/2022] Open
Abstract
Knowledge that certain nutraceuticals can modulate the immune system is not new. These naturally occurring compounds are known as immunoceuticals, which is a novel term that refers to products and systems that naturally improve an individual’s immuno-competence. Examples of immunoceuticals include vitamin D3, mushroom glycans, flavonols, quercetin, omega-3 fatty acids, carotenoids, and micronutrients (e.g., zinc and selenium), to name a few. The immune system is a complex and highly intricate system comprising molecules, cells, tissues, and organs that are regulated by many different genetic and environmental factors. There are instances, such as pathological conditions, in which a normal immune response is suboptimal or inappropriate and thus augmentation or tuning of the immune response by immunoceuticals may be desired. With infectious diseases, cancers, autoimmune disorders, inflammatory conditions, and allergies on the rise in both humans and animals, the importance of the use of immunoceuticals to prevent, treat, or augment the treatment of these conditions is becoming more evident as a natural and often economical approach to support wellness. The global nutraceuticals market, which includes immunoceuticals, is a multi-billion-dollar industry, with a market size value of USD 454.55 billion in 2021, which is expected to reach USD 991.09 billion by 2030. This review will provide an overview of the immune system, the importance of immunomodulation, and defining and testing for immunocompetence, followed by a discussion of several key immunoceuticals with clinically proven and evidence-based immunomodulatory properties.
Collapse
Affiliation(s)
- Sophie Tieu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Armen Charchoglyan
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
- Advanced Analysis Centre, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Lauri Wagter-Lesperance
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Khalil Karimi
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Byram W. Bridle
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
| | - Bonnie A. Mallard
- ImmunoCeutica Inc., Cambridge, ON N1T 1N6, Canada
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
- Correspondence:
| |
Collapse
|
17
|
Willoughby OB, Borkowski E, Dixon S, Cunha SM, Asselstine V, Perergrine AS, Menzies PI, Karrow NA, Cánovas A. 149 Differences in Gene Expression Following Natural Exposure to Gastrointestinal Parasites between Sheep Selected for High Innate Responses and High Antibody-Mediated Adaptive Immune Responses. J Anim Sci 2022. [DOI: 10.1093/jas/skac247.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Parasitism by gastrointestinal nematodes (GINs) is a major source of morbidity and mortality for sheep flocks grazed on pasture. Since there is evidence for genetic resistance to GINs in some sheep breeds, genetic selection for immunologic resistance to GIN is a possible management strategy. This study sought to identify differences at the transcriptome level between Ridau-Arcott sheep characterized as high innate immune responders (IIRs, n=5) or high antibody-mediated immune responders (AbMIRs, n=5) following natural exposure to and infection with GINs after spending the summer on GIN-infested pasture; infection was confirmed with individual fecal egg counts. The transcriptomes of the high IIR and high AbMIR animals were also compared with GIN-naïve sheep of the same breed (all medium IIR and AbMIR responders, n = 7). Liver tissue samples from the 17 animals were used to perform transcriptomic analyses using RNA-Sequencing technology. The CLC Genomics Workbench 20.0.4 (CLC Bio, Aarhaus, Denmark) software was used to map reads to the most recent ovine reference genome (Oar rambouillet.v1.0.105), and for differential gene expression analysis. In total, 144 differentially expressed genes (DEG) were found between the high IIRs and the high AbMIRs (FDR< 0.05, and fold change (FC) abs > 2). When compared to the naïve animals, 136 and 53 DEG were found between them and the high IIRs and the high AbMIRs, respectively. In order to verify their function in the host immune response to GINs, functional enrichment analyses were performed on these candidate genes using the AmiGO2 software. Monocarboxilic acid metabolism was identified as an enriched biological process (FDR < 0.05), and ammonia-lyase activity and metalloendopeptidase activity were enriched molecular functions between the high IIR and high AbMIR animals (FDR < 0.05). These preliminary results improve understanding of how host resistance to GINs is genetically regulated through the innate and adaptive immune systems in sheep.
Collapse
Affiliation(s)
| | - Emma Borkowski
- Ontario Veterinary College, University of Guelph, Department of Pathobiology
| | | | | | | | - Andrew S Perergrine
- Ontario Veterinary College, University of Guelph, Department of Pathobiology
| | - Paula I Menzies
- Ontario Veterinary College, University of Guelph, Department of Population Medicine
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph
| | - Angela Cánovas
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph
| |
Collapse
|
18
|
Xu R, Kiarie EG, Yiannikouris A, Sun L, Karrow NA. Nutritional impact of mycotoxins in food animal production and strategies for mitigation. J Anim Sci Biotechnol 2022; 13:69. [PMID: 35672806 PMCID: PMC9175326 DOI: 10.1186/s40104-022-00714-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 04/05/2022] [Indexed: 01/25/2023] Open
Abstract
Mycotoxins are toxic secondary metabolites produced by filamentous fungi that are commonly detected as natural contaminants in agricultural commodities worldwide. Mycotoxin exposure can lead to mycotoxicosis in both animals and humans when found in animal feeds and food products, and at lower concentrations can affect animal performance by disrupting nutrient digestion, absorption, metabolism, and animal physiology. Thus, mycotoxin contamination of animal feeds represents a significant issue to the livestock industry and is a health threat to food animals. Since prevention of mycotoxin formation is difficult to undertake to avoid contamination, mitigation strategies are needed. This review explores how the mycotoxins aflatoxins, deoxynivalenol, zearalenone, fumonisins and ochratoxin A impose nutritional and metabolic effects on food animals and summarizes mitigation strategies to reduce the risk of mycotoxicity.
Collapse
|
19
|
Zhou F, Liang Y, Arbab AAI, Li M, Yang Z, Karrow NA, Mao Y. Analysis of Non-Genetic Factors Affecting Wood's Model of Daily Milk Fat Percentage of Holstein Cattle. Vet Sci 2022; 9:vetsci9040188. [PMID: 35448686 PMCID: PMC9026219 DOI: 10.3390/vetsci9040188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 12/10/2022] Open
Abstract
This research paper aimed to explore the characteristics of Holstein cattle’s milk fat percentage lactation curve and its influencing factors. The Wood model was used for fitting the lactation curve of 398,449 DHI test-day milk fat percentage records of Holstein cows from 2018 to 2020 in 12 dairy farms in Jiangsu province, and the influencing factors—including farm size, parity, calving season, calving interval, and 305-days milk production—on the parameters of the lactation curve were analyzed. The results showed that the non-genetic factors such as dairy farm size, calving season, parity, calving interval, and 305-days milk yield have a significant impact on milk fat percentage (p < 0.01); the average R2 of the daily milk fat percentage curve was 0.9699; the lowest milk fat percentage was 3.54%; the time to reach the lowest milk fat percentage was 126 days; and the persistence of milk fat percentage was 3.59%. All of these factors explored in this study fit at different levels above 0.96. The Wood model performed well in the fitting and analysis of the milk fat percentage curve of Holstein cattle in Jiangsu Province. This study provides a reference for improving the milk fat percentage of Holstein cattle.
Collapse
Affiliation(s)
- Fuzhen Zhou
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (F.Z.); (Y.L.); (A.A.I.A.); (M.L.); (Z.Y.)
| | - Yan Liang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (F.Z.); (Y.L.); (A.A.I.A.); (M.L.); (Z.Y.)
| | - Abdelaziz Adam Idriss Arbab
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (F.Z.); (Y.L.); (A.A.I.A.); (M.L.); (Z.Y.)
- Biomedical Research Institute, Darfur College, Nyala 63313, Sudan
| | - Mingxun Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (F.Z.); (Y.L.); (A.A.I.A.); (M.L.); (Z.Y.)
| | - Zhangping Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (F.Z.); (Y.L.); (A.A.I.A.); (M.L.); (Z.Y.)
| | - Niel A. Karrow
- Center for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Yongjiang Mao
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (F.Z.); (Y.L.); (A.A.I.A.); (M.L.); (Z.Y.)
- Correspondence: ; Tel.: +86-13665241873
| |
Collapse
|
20
|
Shandilya UK, Lamers K, Zheng Y, Moran N, Karrow NA. Ginsenoside Rb1 selectively improved keratinocyte functions in vitro without affecting tissue regeneration in zebrafish larvae tail regrowth. In Vitro Cell Dev Biol Anim 2022; 58:269-277. [PMID: 35501555 DOI: 10.1007/s11626-022-00664-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/25/2022] [Indexed: 11/24/2022]
Affiliation(s)
- Umesh K Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Kristen Lamers
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Yashi Zheng
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Nicole Moran
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada.
| |
Collapse
|
21
|
Lafleur Larivière É, Zhu C, Sharma A, Karrow NA, Huber LA. The effects of deoxynivalenol-contaminated corn in low-complexity diets supplemented with either an immune-modulating feed additive, or fish oil on nursery pig growth performance, immune response, small intestinal morphology, and component digestibility. Transl Anim Sci 2022; 6:txac068. [PMID: 35677898 PMCID: PMC9170128 DOI: 10.1093/tas/txac068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/18/2022] [Indexed: 11/13/2022] Open
Abstract
Three hundred twenty newly weaned pigs (21 days of age; 6.7 ± 0.3 kg BW) were used to determine the effects of supplementing low-complexity (LC) deoxynivalenol- (DON) contaminated nursery diets with a feed additive or fish oil on growth performance and immune response to an Escherichia coli lipopolysaccharide (LPS) challenge. Pens were randomly assigned to 1 of 5 dietary treatments (n = 8 pens per treatment): positive control (PC; contained multiple animal protein sources), or 1 of 4 LC diets (contained only plant-based protein sources) without (NC; negative control) or with ~ 3.5 ppm DON contamination, without (DON-) or with a feed additive containing a blend of immune-modulating components (DON+; 2 mg/kg, as-fed) or fish oil (DONω3; 2.5%, as-fed). Dietary treatments were fed during phases I and II (7 and 15 days, respectively) and a common phase III diet was fed for 20 days. On day 22, two pigs per pen were injected IM with 30 μg/kg BW LPS and 1 pig per pen with 1 mL saline. Rectal temperatures were recorded at 0, 1, 2, 3 h after injection. At 3 h, blood was collected for plasma cytokine analysis and small intestinal histomorphology was assessed. In phase I, pigs fed PC and NC did not differ for ADG, ADFI and G:F, but these outcomes were greater than for pigs fed DON+ and DONω (P < 0.05). In phase II, pigs fed NC had greater ADG and PC had greater ADFI but lower G:F than pigs fed DON- and DONω3 (P < 0.05). At the end of phase II, pigs fed DONω3 tended to have lower BW than PC and NC (P = 0.084 and 0.079, respectively). In phase III and overall, there were no differences among dietary treatments for ADG, ADFI, G:F, or final BW. The LPS injection increased rectal temperature and reduced jejunal and ileal villus height (versus saline; P < 0.05). Plasma interferon-γ concentration was only increased by LPS for pigs fed PC, NC, and DON+ compared to the saline-injected counterparts (P < 0.05). Regardless of LPS injection, jejunal villus height was greater for pigs fed DON+ than DONω3 (P < 0.05) and ileal villus height was greater for pigs fed DON+ and PC than DONω3 (P < 0.05). Therefore, nursery diet complexity did not affect growth performance or immune response to LPS. Regardless of DON contamination and feed additive inclusion in phases I and II, pigs were able to achieve nursery exit BW not different from those fed PC. The feed additive offered marginal benefits for small intestinal villus height and immune response for pigs fed DON-contaminated LC nursery diets.
Collapse
Affiliation(s)
| | - Cuilan Zhu
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Ankita Sharma
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Lee-Anne Huber
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| |
Collapse
|
22
|
Tang C, Liang Y, Guo J, Wang M, Li M, Zhang H, Arbab AAI, Karrow NA, Yang Z, Mao Y. Effects of Seasonal Heat Stress during Late Gestation on Growth Performance, Metabolic and Immuno-Endocrine Parameters of Calves. Animals (Basel) 2022; 12:ani12060716. [PMID: 35327113 PMCID: PMC8944852 DOI: 10.3390/ani12060716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/22/2022] [Accepted: 03/09/2022] [Indexed: 01/27/2023] Open
Abstract
Heat stress during late gestation could affect subsequent lactation performance, resulting in damage to the immune function, health, and growth performance of calves. This study aimed to compare the effects of 33 days of summer stress (Summer group, 70.15 < THI < 74.28) with 33 days of winter during late gestation (Winter group, 57.55 < THI < 67.25) on the growth, hormones, oxidative stress, and immune function of calves. Calves (Summer, n = 28; Winter, n = 23) were separated from cows immediately after birth and fed with 2 L colostrum within 2 h and 8−10 h after birth, respectively, and weaned at 60 days of age. Bodyweight (BW) was measured at birth and weaning. Withers height (WH), body length, and chest girth were measured at birth, 30 days, and 60 days of age. The health of calves ranging in age from 1 to 7 days was recorded. Plasma interferon-γ (IFN-γ), superoxide dismutase (SOD), adrenocorticotropin (ACTH), gonadotropin-releasing hormone (GnRH), IgG, cortisol, heat shock protein 70 (Hsp70), growth hormone (GH), insulin, lipid peroxide (LPO), and tumor necrosis factor-α (TNF-α) levels were measured in calves at 0 (before colostrum feeding), 3, 7, 14, 28, and 56 days of age. The pregnancy period of the Summer group was shortened by 1.44 days. The Winter and Summer groups had the same birth weight. One week after birth, the incidence of diarrhea was 57.14% and 21.74% in Summer and Winter groups, respectively. Compared with the Winter group, TNF-α in the Summer group increased significantly before colostrum feeding. ACTH and LPO decreased significantly at 3 days of age, ACTH and TNF-α decreased significantly at 7 days of age, Hsp70 increased significantly, ACTH was significantly reduced at 14 days of age, and Hsp70 increased dramatically at 7 days of age. SOD and TNF-α increased statistically at 28 days of age, LPO decreased significantly, and IFN-γ decreased significantly at 56 days of age, while IgG and GH increased significantly. We conclude that maternal heat stress during late gestation can damage the oxidative stress and immune plasma indexes of offspring before weaning.
Collapse
Affiliation(s)
- Cheng Tang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Yan Liang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Jiahe Guo
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Mengqi Wang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Mingxun Li
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Huimin Zhang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Abdelaziz Adam Idriss Arbab
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Niel A. Karrow
- Center for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Zhangping Yang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Yongjiang Mao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (C.T.); (Y.L.); (J.G.); (M.W.); (M.L.); (H.Z.); (A.A.I.A.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
- Correspondence: ; Tel.: +86-514-8797-9307; Fax: +86-514-8735-0440
| |
Collapse
|
23
|
Karrow NA, Shandilya UK, Pelech S, Wagter-Lesperance L, McLeod D, Bridle B, Mallard BA. Maternal COVID-19 Vaccination and Its Potential Impact on Fetal and Neonatal Development. Vaccines (Basel) 2021; 9:vaccines9111351. [PMID: 34835282 PMCID: PMC8617890 DOI: 10.3390/vaccines9111351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/09/2021] [Accepted: 11/15/2021] [Indexed: 12/17/2022] Open
Abstract
Vaccines have been developed at "warp speed" to combat the COVID-19 pandemic caused by the SARS-CoV-2 coronavirus. Although they are considered the best approach for preventing mortality, when assessing the safety of these vaccines, pregnant women have not been included in clinical trials. Thus, vaccine safety for this demographic, as well as for the developing fetus and neonate, remains to be determined. A global effort has been underway to encourage pregnant women to get vaccinated despite the uncertain risk posed to them and their offspring. Given this, post-hoc data collection, potentially for years, will be required to determine the outcomes of COVID-19 and vaccination on the next generation. Most COVID-19 vaccine reactions include injection site erythema, pain, swelling, fatigue, headache, fever and lymphadenopathy, which may be sufficient to affect fetal/neonatal development. In this review, we have explored components of the first-generation viral vector and mRNA COVID-19 vaccines that are believed to contribute to adverse reactions and which may negatively impact fetal and neonatal development. We have followed this with a discussion of the potential for using an ovine model to explore the long-term outcomes of COVID-19 vaccination during the prenatal and neonatal periods.
Collapse
Affiliation(s)
- Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
- Correspondence:
| | - Umesh K. Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Steven Pelech
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC V5Z 1M9, Canada;
| | - Lauraine Wagter-Lesperance
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.W.-L.); (B.B.); (B.A.M.)
| | - Deanna McLeod
- Kaleidoscope Strategic Inc., Toronto, ON M6R 1E7, Canada;
| | - Byram Bridle
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.W.-L.); (B.B.); (B.A.M.)
| | - Bonnie A. Mallard
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada; (L.W.-L.); (B.B.); (B.A.M.)
| |
Collapse
|
24
|
Naylor D, Sharma A, Li Z, Monteith G, Mallard BA, Bergeron R, Baes C, Karrow NA. Endotoxin-induced cytokine, chemokine and white blood cell profiles of variable stress-responding sheep. Stress 2021; 24:888-897. [PMID: 34259115 DOI: 10.1080/10253890.2021.1954905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Individual variation of the hypothalamic-pituitary-adrenal (HPA) axis response to stress could contribute to variable stress resiliency of livestock. During stress events, the innate immune system can also become activated and work in concert with the neuroendocrine system to restore homeostasis, while minimizing tissue damage. The purpose of this study was to assess immune function in variable stress-responding sheep in response to bacterial lipopolysaccharide (LPS) endotoxin immune-challenge. High (HSR, n = 12), middle (MSR, n = 12), and low-stress responders (LSR, n = 12) were selected from a population of 112 female lambs and classified based on serum cortisol concentration after receiving an intravenous bolus of LPS (400 ng/kg). Blood was collected from the jugular vein at 0 and 4 hrs post-LPS challenge to monitor changes in serum pro- and anti-inflammatory cytokines and chemokines, and white blood cell populations. Rectal temperature was recorded hourly to monitor fever. HSR had the greatest increase in rectal temperature and strongest pro-inflammatory IL-6 and IFN-γ cytokine responses compared to MSR and LSR. HSR and MSR had stronger anti-inflammatory IL-10 cytokine and CCL2 chemokine responses than LSR. White blood cell counts changed between 0 and 4 h; however, no differences were detected among the variable stress response groups. The distinct inflammatory response in variable stress responding sheep could contribute to individual differences in stress resiliency and this warrants investigation in the context of other types of stress.
Collapse
Affiliation(s)
- D Naylor
- Department of Animal Biosciences, University of Guelph, Guelph, Canada
| | - A Sharma
- Department of Animal Biosciences, University of Guelph, Guelph, Canada
| | - Z Li
- Department of Animal Biosciences, University of Guelph, Guelph, Canada
| | - G Monteith
- Department of Clinical Studies, Ontario Veterinary College, Guelph, Canada
| | - B A Mallard
- Department of Pathobiology, Ontario Veterinary College, Guelph, Canada
| | - R Bergeron
- Department of Animal Biosciences, University of Guelph, Guelph, Canada
| | - C Baes
- Department of Animal Biosciences, University of Guelph, Guelph, Canada
| | - N A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, Canada
| |
Collapse
|
25
|
Lafleur Larivière É, Zhu C, Zettell S, Patterson R, Karrow NA, Huber LA. The effect of deoxynivalenol-contaminated corn and an immune-modulating feed additive on growth performance and immune response of nursery pigs fed corn- and soybean meal-based diets. Transl Anim Sci 2021; 5:txab141. [PMID: 34611597 PMCID: PMC8485908 DOI: 10.1093/tas/txab141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 09/03/2021] [Indexed: 11/13/2022] Open
Abstract
One hundred eighty newly weaned pigs (21 days of age; 6.9 ± 0.2 kg BW) were used to determine the effects of deoxynivalenol- (DON) contaminated corn and an immune-modulating feed additive on growth performance and immune response of nursery pigs fed corn- and soybean meal-based diets. Pens were randomly assigned to one of five diets: a high-complexity (HC; containing animal protein sources) or one of four low-complexity diets (LC; containing soybean meal as the main protein source) arranged in a 2 × 2 factorial with low (lDON; average 1.4 ppm) or high (hDON; average 3.5 ppm) DON and with or without a feed additive (2 g/kg in complete feed; n = 6 pens per treatment) provided in a three-phase feeding program. On day 7, small intestinal histomorphology was assessed in two pigs per pen. On days 8 and 25, two pigs per pen were immunized with ovalbumin (OVA). Blood was collected on days 8, 25, and 38 for determination of OVA-specific IgG. There were no corn type by feed additive interactions or feed additive effects for growth performance. The ADG, ADFI, and G:F in phase I were not different for pigs fed hDON vs. lDON, but were less than those fed the HC diet (contrasts; P < 0.05). Over the entire nursery period, ADG and ADFI were less for pigs fed hDON vs. those fed lDON (407 vs. 484 g and 651 vs. 769 g, respectively; P < 0.05), ADG was less for pigs fed hDON vs. HC (496 g; P < 0.05), and pigs fed lDON had ADG and ADFI not different from those fed the HC diet. Pigs fed hDON had lower final BW than those fed lDON (24.6 vs. 27.6 kg; P < 0.01) and tended to have lower final BW than pigs fed the HC diet (27.3 kg; contrast; P = 0.052); final BW was not different between pigs fed lDON and HC diets. Jejunal villus heights were shorter for pigs fed hDON and lDON compared to pigs fed HC (438 and 466 vs. 538 µm; contrasts; P < 0.05 and P = 0.090, respectively) and the villus:crypt ratio tended to be less for pigs fed hDON vs. those fed HC (1.87 vs. 2.22; contrast; P = 0.091). On day 38, plasma OVA-specific IgG 1 tended to be less for pigs fed hDON compared to HC (contrast; P = 0.075) and OVA-specific total IgG were less for pigs fed LC diets without the feed additive vs. HC (P < 0.05). Therefore, high DON (~3.5 ppm) in LC nursery diets interfered with compensatory growth and the humoral immune response. The feed additive did not rescue growth performance, regardless of DON contamination level in LC nursery diets.
Collapse
Affiliation(s)
| | - Cuilan Zhu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | | | | | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Lee-Anne Huber
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| |
Collapse
|
26
|
Mallikarjunappa S, Brito LF, Pant SD, Schenkel FS, Meade KG, Karrow NA. Johne's Disease in Dairy Cattle: An Immunogenetic Perspective. Front Vet Sci 2021; 8:718987. [PMID: 34513975 PMCID: PMC8426623 DOI: 10.3389/fvets.2021.718987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/19/2021] [Indexed: 12/25/2022] Open
Abstract
Johne's disease (JD), also known as paratuberculosis, is a severe production-limiting disease with significant economic and welfare implications for the global cattle industry. Caused by infection with Mycobacterium avium subspecies paratuberculosis (MAP), JD manifests as chronic enteritis in infected cattle. In addition to the economic losses and animal welfare issues associated with JD, MAP has attracted public health concerns with potential association with Crohn's disease, a human inflammatory bowel disease. The lack of effective treatment options, such as a vaccine, has hampered JD control resulting in its increasing global prevalence. The disease was first reported in 1895, but in recognition of its growing economic impact, extensive recent research facilitated by a revolution in technological approaches has led to significantly enhanced understanding of the immunological, genetic, and pathogen factors influencing disease pathogenesis. This knowledge has been derived from a variety of diverse models to elucidate host-pathogen interactions including in vivo and in vitro experimental infection models, studies measuring immune parameters in naturally-infected animals, and by studies conducted at the population level to enable the estimation of genetic parameters, and the identification of genetic markers and quantitative trait loci (QTL) putatively associated with susceptibility or resistance to JD. The main objectives of this review are to summarize these recent developments from an immunogenetics perspective and attempt to extract the principal and common findings emerging from this wealth of recent information. Based on these analyses, and in light of emerging technologies such as gene-editing, we conclude by discussing potential future avenues for effectively mitigating JD in cattle.
Collapse
Affiliation(s)
- Sanjay Mallikarjunappa
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada
| | - Luiz F Brito
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States
| | - Sameer D Pant
- Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW, Australia
| | - Flavio S Schenkel
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada
| | - Kieran G Meade
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Niel A Karrow
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada
| |
Collapse
|
27
|
Shandilya UK, Sharma A, Mallikarjunappa S, Guo J, Mao Y, Meade KG, Karrow NA. CRISPR-Cas9-mediated knockout of TLR4 modulates Mycobacterium avium ssp. paratuberculosis cell lysate-induced inflammation in bovine mammary epithelial cells. J Dairy Sci 2021; 104:11135-11146. [PMID: 34253365 DOI: 10.3168/jds.2021-20305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/25/2021] [Indexed: 11/19/2022]
Abstract
Toll-like receptor 4 (TLR4) is a pattern-recognition receptor involved in the recognition of microbial pathogens and host alarmins. Ligation to TLR4 initiates a signaling cascade that leads to inflammation. Polymorphisms in bovine TLR4 have been associated with Mycobacterium avium ssp. paratuberculosis (MAP) susceptibility and resistance, the cause of Johne's disease, and milk somatic cell score, a biomarker of mastitis. Although the contribution of TLR4 to recognition of bacterial lipopolysaccharide (LPS) has been well characterized, its role in MAP recognition is less certain. Clustered regularly interspaced short palindromic repeats-Cas9 mediated gene editing was performed to generate TLR4 knockout (KO) mammary epithelial cells to determine if TLR4 expression is involved in the initiation of the host inflammatory response to MAP cell lysate (5 and 10 µg/mL) and Escherichia coli LPS (5 µg/mL). The absence of TLR4 in KO cells resulted in enhanced expression of key inflammatory genes (TNFA and IL6), anti-inflammatory genes (IL10 and SOCS3), and supernatant cytokine and chemokine levels (TNF-α, IL-6, IL-10, CCL3) in response to the MAP cell lysate (10 µg/mL). However, in response to LPS, the KO cells showed reduced expression of key inflammatory genes (TNFA, IL1A, IL1B, and IL6) and supernatant cytokine levels (TNF-α, IL-6, CCL2, IL-8) as compared with unedited cells. Overall, these results confirm that TLR4 is essential for eliciting inflammation in response to LPS; however, exacerbated gene and protein expression in TLR4 KO cells in response to MAP cell lysate suggests a different mechanism of infection and host response for MAP, at least in terms of how it interacts with TLR4. These novel findings show potential divergent roles for TLR4 in mycobacterial infections, and this may have important consequences for the therapeutic control of inflammation in cattle.
Collapse
Affiliation(s)
- Umesh K Shandilya
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
| | - A Sharma
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
| | - S Mallikarjunappa
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
| | - J Guo
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, P R China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Y Mao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, P R China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - K G Meade
- Animal and Bioscience Research Department, Teagasc, Grange, Co. Meath, Ireland, C15 PW93; School of Agriculture and Food Science, University College Dublin, Ireland, D04 V1W8
| | - N A Karrow
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, N1G 2W1, Ontario, Canada.
| |
Collapse
|
28
|
Crosbie M, Zhu C, Karrow NA, Huber LA. The effects of partially replacing animal protein sources with full fat black soldier fly larvae meal ( Hermetia illucens) in nursery diets on growth performance, gut morphology, and immune response of pigs. Transl Anim Sci 2021; 5:txab057. [PMID: 34179700 PMCID: PMC8221453 DOI: 10.1093/tas/txab057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/17/2021] [Indexed: 11/13/2022] Open
Abstract
One hundred and forty-four newly weaned pigs (6.74 ± 0.23 kg initial BW; 21 d of age) were used to determine the effect of partially replacing animal protein sources with black solider fly larvae meal (BSFLM) in nursery diets on growth performance, gut morphology, and immune response. After weaning, pigs were placed in 24 pens (six pigs per pen) and pens were randomly assigned to one of four dietary treatments (study d 0; n = 6), which were fed over three phases (phases I, II, and III were fed for 7, 14, and 21 d, respectively). Two nursery diets were formulated with 25% (LowFF) and 50% (HighFF) of the animal protein sources replaced by full fat BSFLM. Conventional nursery diets including animal protein sources without (CON−) and with antibiotics (220 mg Aureomycin per kg of complete feed; CON+) served as controls. On d 8, two pigs per pen were sacrificed to collect organ weights and for intestinal histomorphological measurements. On d 9 and d 23, two pigs per pen were vaccinated with the novel antigen ovalbumin (OVA). Blood samples were collected on d 9, d 23, and d 38 to assess concentrations of plasma haptoglobin and OVA-specific immunoglobulins G (IgG) and IgG1. On d 38, the same two pigs per pen underwent a dermal hypersensitivity test and skin-fold thickness was measured at 0, 6, 24, and 48 h postintradermal injection with OVA. Pigs fed the CON- had greater ADFI and lower G:F in phase II vs. those fed CON+ and HighFF diets (P < 0.05 and P < 0.05); intermediate ADFI was observed for pigs fed the LowFF diet. Overall in the nursery period, ADG (496 ± 13 g), ADFI (743 ± 23 g), G:F, and final BW (27.61 ± 0.66 kg) were not different among dietary treatments. There were no differences in organ weights, jejunal or ileal villus heights, or crypt depths among dietary treatments. There were no differences in OVA-specific IgG, IgG1, or plasma haptoglobin among dietary treatments at any of the blood sampling times. Although not different, pigs fed the LowFF, HighFF, and CON+ diets had respectively 2.0×, 1.7×, and 1.4× greater dermal hypersensitivity response to OVA versus those fed CON−. Both inclusion levels of BSFLM in nursery diets supported growth performance, gut morphology, and indices of immune function not different from the CON+, which suggest that full fat BSFLM can replace at least 50% of animal protein sources in nursery diets of pigs without any deleterious effects on pig growth.
Collapse
Affiliation(s)
- Michelina Crosbie
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - Cuilan Zhu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - Lee-Anne Huber
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| |
Collapse
|
29
|
Akbari Moghaddam Kakhki R, Ma DWL, Price KR, Moats J, Karrow NA, Kiarie EG. Impact of feeding n-3 fatty acids to layer breeders and their offspring on concentration of antibody titres against infectious bronchitis, and Newcastle diseases and plasma fatty acids in the offspring. Br Poult Sci 2021; 62:270-277. [PMID: 33155822 DOI: 10.1080/00071668.2020.1847254] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
1. The impact of feeding sources of n-3 fatty acids (FA) to ISA Brown and Shaver White breeders and their offspring on antibody titres and plasma FA profile was examined.2. Breeders were fed either a control diet (CON); CON + 1% microalgae (DMA: Aurantiochytrium limacinum) as a source of docosahexaenoic acid; or CON + 2.6% of a co-extruded mixture of full-fat flaxseed (FFF) as a source of α-linolenic acid. Day-old female offspring were assigned to diets (breeder-offspring): 1) CON-CON, 2) CON-DMA, 3) CON - FFF, 4) DMA - CON, 5) DMA - DMA, 6) FFF - CON or 7) FFF - FFF, followed by a standard layer diet through 18 weeks of age (WOA) to 42 WOA.3. Antibody titres against infectious bronchitis (IBV) and Newcastle disease (NDV) were measured at six days and six WOA, and plasma FA profile was measured at 18 and 42 WOA.4. Pullets from FFF-fed breeders had higher antibody titres against IBV and NDV than pullets fed DMA (P < 0.05). Feeding FFF to offspring increased plasma ∑n-3 FA at 18 and 42 WOA, whereas feeding DMA to offspring reduced ∑n-6 FA at 18 WOA.5. In conclusion, independent of breeder strain, alpha linoleic acid (ALA) and DHA sources showed varied responses. Feeding breeders FFF increased plasma concentration of antibody titres and n-3 FA whereas DMA reduced plasma concentration of ∑n-6 FA.
Collapse
Affiliation(s)
| | - D W L Ma
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | | | - J Moats
- O & T Farms, Saskatoon, SK, Canada
| | - N A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - E G Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| |
Collapse
|
30
|
Peixoto MRLV, Karrow NA, Newman A, Head J, Widowski TM. Effects of acute stressors experienced by five strains of layer breeders on measures of stress and fear in their offspring. Physiol Behav 2021; 228:113185. [PMID: 32980386 DOI: 10.1016/j.physbeh.2020.113185] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 09/03/2020] [Accepted: 09/23/2020] [Indexed: 10/23/2022]
Abstract
Stressors experienced by layer breeders during egg production can lead to changes in the egg hormone content, potentially impacting their offspring, the commercial layers. Genetic differences might also affect the offspring's susceptibility to maternal experiences. In this study, we tested if maternal stress affects measures of stress and fear in five strains of layer breeders: commercial brown 1 & 2, commercial white 1 & 2 and a pure line White Leghorn. Each strain was equally separated into two groups: "Maternal Stress" (MS), where hens were subjected to a series of 8 consecutive days of acute psychological stressors, and "Control," which received routine husbandry. Additional eggs from Control were injected either with corticosterone diluted in a vehicle solution ("CORT") or just "Vehicle." Stress- and fear-responses of the offspring were measured in a plasma corticosterone test and a combined human approach and novel object test. While the stress treatments did not affect the measured endpoints in the offspring, significant strain differences were found. The offspring of the white strains showed a higher physiological response compared to brown strains and the White 2 offspring was the least fearful strain in the human approach test. Our study found that neither the acute psychological stressors experienced by layer breeders nor the egg injections of corticosterone affected the parameters tested in their offspring. Post hoc power analyses suggest that the lack of treatment effects might be due to a small sample size (type II error). Although studies on larger flocks of layers are still needed, our results provide an initial understanding of an important subject, as in poultry production, layer breeders are often subjected to short-term stressors. In addition, our results suggest the dissociation between the physiological and behavioural parameters of stress response in laying hens, showing that increased concentrations of plasma corticosterone in response to stress might not be directly associated with high levels of fear.
Collapse
Affiliation(s)
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1
| | - Amy Newman
- Department of Integrative Biology, University of Guelph, Guelph, ON, N1G 2W1
| | - Jessica Head
- Department of Natural Resource Sciences, McGill University, Ste. Anne de Bellevue, QC, H9X 3V9
| | - Tina M Widowski
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1.
| |
Collapse
|
31
|
Mallikarjunappa S, Shandilya UK, Sharma A, Lamers K, Bissonnette N, Karrow NA, Meade KG. Functional analysis of bovine interleukin-10 receptor alpha in response to Mycobacterium avium subsp. paratuberculosis lysate using CRISPR/Cas9. BMC Genet 2020; 21:121. [PMID: 33138773 PMCID: PMC7607837 DOI: 10.1186/s12863-020-00925-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 10/20/2020] [Indexed: 12/21/2022] Open
Abstract
Background The interleukin-10 receptor alpha (IL10RA) gene codes for the alpha chain of the IL-10 receptor which binds the cytokine IL-10. IL-10 is an anti-inflammatory cytokine with immunoregulatory function during the pathogenesis of many inflammatory disorders in livestock, including Johne’s disease (JD). JD is a chronic enteritis in cattle caused by Mycobacterium avium subsp. paratuberculosis (MAP) and is responsible for significant economic losses to the dairy industry. Several candidate genes including IL10RA have been found to be associated with JD. The aim of this study was to better understand the functional significance of IL10RA in the context of immune stimulation with MAP cell wall lysate. Results An IL10RA knock out (KO) bovine mammary epithelial cell (MAC-T) line was generated using the CRISPR/cas9 (Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR-associated protein 9) gene editing system. These IL10RA KO cells were stimulated with the immune stimulant MAP lysate +/− IL-10, or with LPS as a positive control. In comparison to unedited cells, relative quantification of immune-related genes after stimulation revealed that knocking out IL10RA resulted in upregulation of pro-inflammatory cytokine gene expression (TNFA, IL1A, IL1B and IL6) and downregulation of suppressor of cytokine signaling 3 (SOCS3), a negative regulator of pro-inflammatory cytokine signaling. At the protein level knocking out IL10RA also resulted in upregulation of inflammatory cytokines - TNF-α and IL-6 and chemokines - IL-8, CCL2 and CCL4, relative to unedited cells. Conclusions The findings of this study illustrate the broad and significant effects of knocking out the IL10RA gene in enhancing pro-inflammatory cytokine expression and further support the immunoregulatory role of IL10RA in eliciting an anti-inflammatory response as well as its potential functional involvement during the immune response associated with JD.
Collapse
Affiliation(s)
- Sanjay Mallikarjunappa
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland.,Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Umesh K Shandilya
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Ankita Sharma
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Kristen Lamers
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Nathalie Bissonnette
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC, J1M 0C8, Canada
| | - Niel A Karrow
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Kieran G Meade
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland.
| |
Collapse
|
32
|
Sharma A, Shandilya UK, Sullivan T, Naylor D, Canovas A, Mallard BA, Karrow NA. Identification of Ovine Serum miRNAs Following Bacterial Lipopolysaccharide Challenge. Int J Mol Sci 2020; 21:E7920. [PMID: 33113825 PMCID: PMC7663744 DOI: 10.3390/ijms21217920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 12/11/2022] Open
Abstract
Host-pathogen interactions are complex and influenced by host genetic and epigenetic modifications. Recently, the significance of microRNAs (miRNAs) in pathogenic infection and the regulation of immune response has been highlighted. However, information on miRNAs' role in the course of inflammation is still very limited in small ruminants. The present study was intended to identify changes in the expression of circulatory miRNAs post-lipopolysaccharide (LPS)-challenge. In this study, young ewes (n = 18) were challenged with Escherichia coli LPS (400 ng/kg i.v.) and blood samples were collected for serum miRNA isolation at two-time points; prior to challenge (T0), and 4 h (T4) post-challenge, reflecting the peak cortisol response. A total of 91 miRNAs were profiled, including 84 miRNAs on a commercial ovine miRNA-PCR array, and seven individual miRNAs. Forty five miRNAs were differentially expressed (DE) with 35 being up-regulated (Fold regulation, FR > 2) and 10 being down-regulated (FR < 1, p < 0.05) at T4. Among the up-regulated miRNAs, 14 were significantly (p < 0.05) induced, including oar-miRs: 369-3p, 495-3p, 376a-3p, 543-3p, 668-3p, 329a-3p, 655-3p, 411a-5p, and 154a-3p, which were located on ovine chromosome 18 forming four miRNA clusters within 10 kb. The elevated miRNAs belonged to different functional classes, playing roles in activating the hypothalamic-pituitary-adrenal axis; increasing cell survival and differentiation; and inducing inflammatory responses and targeted PI3K-Akt and MAPK signaling and chemokine signaling pathways. In summary, these results reveal the dynamic nature of ovine serum miRNAs during LPS-induced stress and highlight the potential role of identified miRNA-clusters on chromosome 18 to understand the regulation of the acute-phase response. Some of these identified circulating miRNAs may also serve as stress biomarkers for livestock in the future.
Collapse
Affiliation(s)
- Ankita Sharma
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (A.S.); (U.K.S.); (T.S.); (D.N.); (A.C.)
| | - Umesh K. Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (A.S.); (U.K.S.); (T.S.); (D.N.); (A.C.)
| | - Tianna Sullivan
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (A.S.); (U.K.S.); (T.S.); (D.N.); (A.C.)
| | - Danielle Naylor
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (A.S.); (U.K.S.); (T.S.); (D.N.); (A.C.)
| | - Angela Canovas
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (A.S.); (U.K.S.); (T.S.); (D.N.); (A.C.)
| | - Bonnie A. Mallard
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (A.S.); (U.K.S.); (T.S.); (D.N.); (A.C.)
| |
Collapse
|
33
|
Wang M, Liang Y, Ibeagha-Awemu EM, Li M, Zhang H, Chen Z, Sun Y, Karrow NA, Yang Z, Mao Y. Genome-Wide DNA Methylation Analysis of Mammary Gland Tissues From Chinese Holstein Cows With Staphylococcus aureus Induced Mastitis. Front Genet 2020; 11:550515. [PMID: 33193625 PMCID: PMC7604493 DOI: 10.3389/fgene.2020.550515] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022] Open
Abstract
Staphylococcus aureus intramammary infection is one of the most common causes of chronic mastitis in dairy cows, whose development may be associated with epigenetic changes in the expression of important host defense genes. This study aimed to construct a genome-wide DNA methylation profile of the mammary gland of Chinese Holstein cows (n = 3) following experimentally induced S. aureus mastitis, and to explore the potential gene regulatory mechanisms affected by DNA methylation during S. aureus mastitis. DNA was extracted from S. aureus-positive (n = 3) and S. aureus-negative (n = 3) mammary gland quarters and subjected to methylation-dependent restriction-site associated DNA sequencing (Methyl-RAD Seq). Results showed that CmCGG/CmCWGG DNA methylation sites were unevenly distributed and concentrated on chromosomes 5, 11, and 19, and within intergenic regions and intron regions of genes. Compared with healthy control quarters, 9,181 significantly differentially methylated (DM) CmCGG sites and 1,790 DM CmCWGG sites were found in the S. aureus-positive quarters (P < 0.05, |log2FC| > 1). Furthermore, 363 CmCGG differently methylated genes (DMGs) and 301 CmCWGG DMGs (adjusted P < 0.05, |log2FC| > 1) were identified. Gene ontology and KEGG enrichment analysis indicated that CmCGG DMGs are involved in immune response pathways, while the CmCWGG DMGs were mainly enriched in gene ontology terms related to metabolism. The mRNAs of 526 differentially methylated CmCGG genes and 124 differentially methylated CmCWGG genes were also significantly differentially expressed (RNA-Seq data) in the same samples, herein denoted differentially methylated and expressed genes (DMEGs) (P < 0.05). Functional enrichment analysis of DMEGs revealed roles related to biological processes, especially the regulation of immune response to diseases. CmCGG DMEGs like IL6R, TNF, BTK, IL1R2, and TNFSF8 enriched in several immune-related GO terms and pathways indicated their important roles in host immune response and their potential as candidate genes for S. aureus mastitis. These results suggest potential regulatory roles for DNA methylation in bovine mammary gland processes during S. aureus mastitis and serves as a reference for future epigenetic regulation and mechanistic studies.
Collapse
Affiliation(s)
- Mengqi Wang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC, Canada
| | - Yan Liang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Eveline M. Ibeagha-Awemu
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC, Canada
| | - Mingxun Li
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Huimin Zhang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Zhi Chen
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Yujia Sun
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Niel A. Karrow
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Zhangping Yang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Yongjiang Mao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| |
Collapse
|
34
|
Reedman CN, Duffield TF, DeVries TJ, Lissemore KD, Karrow NA, Li Z, Winder CB. Randomized control trial assessing the efficacy of pain control strategies for caustic paste disbudding in dairy calves younger than 9 days of age. J Dairy Sci 2020; 103:7339-7350. [PMID: 32505405 DOI: 10.3168/jds.2019-18118] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/23/2020] [Indexed: 12/12/2022]
Abstract
Disbudding is a common procedure practiced in the dairy industry and is known to cause pain when performed without pain control. Dairy producers who disbud calves with caustic paste are less likely to provide pain control than those using cautery. Little research has been conducted on pain control for caustic paste disbudding and no studies have specifically examined calves under 9 d of age. The objective of this study was to evaluate the efficacy of local anesthesia and nonsteroidal anti-inflammatory drug analgesia on indicators of pain and inflammation in dairy calves disbudded using caustic paste. One hundred forty Holstein heifer calves 1 to 9 d of age were enrolled in 28 blocks and randomly allocated to 1 of 5 treatments: sham control (SH); positive control (POS); lidocaine cornual nerve block (LC); meloxicam (MEL); and lidocaine cornual nerve block plus meloxicam (LCM). We measured outcomes including serum cortisol and haptoglobin, pressure sensitivity, and lying behavior. Data were analyzed using mixed linear regression models with treatment as a fixed effect, baseline values as a covariate, and trial block as a random effect. Compared with the POS group, the LCM group had reduced serum cortisol at 15, 30, 45, and 60 min post-disbudding; cortisol values were not different between LC, LCM, and SH calves at these time points. At 60, 90, 120, and 180 min post-disbudding, LCM calves had reduced cortisol compared with LC calves, whereas, values did not differ between LCM and SH calves at these time points. At 3 to 4 d post-disbudding, the LCM group tended to have reduced haptoglobin, but no differences were found between groups at 180 min and 7 d post-disbudding. At 60, 90, and 120 min post-disbudding, LC and LCM treated calves had decreased pressure sensitivity compared with other groups. No differences were seen in pressure sensitivity between groups at 180 min, 3 to 4 or 7 d post-disbudding. No differences in lying behavior were found between treatment groups on any of the 7 d following disbudding. These findings demonstrate that the combination of a local anesthetic with a nonsteroidal anti-inflammatory drug is beneficial for reducing indicators of pain and inflammation in young calves disbudded with caustic paste.
Collapse
Affiliation(s)
- Cassandra N Reedman
- Department of Population Medicine, University of Guelph, Guelph, Ontario, N1G 2W1 Canada.
| | - Todd F Duffield
- Department of Population Medicine, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| | - Trevor J DeVries
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| | - Kerry D Lissemore
- Department of Population Medicine, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| | - Ziwei Li
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| | - Charlotte B Winder
- Department of Population Medicine, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| |
Collapse
|
35
|
Cheng K, Ma C, Guo X, Huang Y, Tang R, Karrow NA, Wang C. Vitamin D 3 modulates yellow catfish (Pelteobagrus fulvidraco) immune function in vivo and in vitro and this involves the vitamin D 3/VDR-type I interferon axis. Dev Comp Immunol 2020; 107:103644. [PMID: 32061641 DOI: 10.1016/j.dci.2020.103644] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/11/2020] [Accepted: 02/11/2020] [Indexed: 06/10/2023]
Abstract
Vitamin D3 (VD3) has been shown to regulate immune function in mammals. 1,25-dihydroxyvitamin (1,25(OH)2D3) is the active form of vitamin D3, which is also known as calcitriol. The current study investigated the immunomodulatory effects of 1,25(OH)2D3 on the innate immune response of yellow catfish (Pelteobagrus fulvidraco) after in vivo and in vitro immune challenge. The in vivo results showed that increasing dietary vitamin D3 decreased mortality, enhanced the immune protective rate, and increased serum lysozyme, catalase and SOD activities in yellow catfish infected with Edwardsiella Ictaluri (p < 0.05). The in vitro results showed that 1,25(OH)2D3 (0, 1, 10, 100, 200 pM) dose-dependently attenuated the rate of apoptosis and production or reactive oxygen species and increased the phagocytic activity of head kidney macrophages stimulated with 10 mg/L lipopolysaccharide (LPS) and 100 mg/L of Poly(I:C) (p < 0.05). Real-time quantitative PCR results showed that increasing dietary vitamin D3 content in vivo and increasing the level of 1,25(OH)2D3in vitro partially regulated the expression of VD3/VDR-type I interferon axis genes (vdr, irf-3, ifn-a, jak1, stat1, ifi56 and ifp35) after immune challenge. These results indicated that vitamin D3 content helped yellow catfish to resist oxidative stress and inflammation caused by immune challenge, and immunomodulation involved the VD3/VDR-type I interferon action axis.
Collapse
Affiliation(s)
- Ke Cheng
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chunsong Ma
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xun Guo
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yanqing Huang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China.
| | - Rong Tang
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, ON, N1G 2W1, Canada
| | - Chunfang Wang
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
| |
Collapse
|
36
|
Mallikarjunappa S, Schenkel FS, Brito LF, Bissonnette N, Miglior F, Chesnais J, Lohuis M, Meade KG, Karrow NA. Association of genetic polymorphisms related to Johne's disease with estimated breeding values of Holstein sires for milk ELISA test scores. BMC Vet Res 2020; 16:165. [PMID: 32460776 PMCID: PMC7254716 DOI: 10.1186/s12917-020-02381-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 05/17/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Johne's disease (JD) is a chronic intestinal inflammatory disease caused by Mycobacterium avium subsp. paratuberculosis (MAP) infection in ruminants. Since there are currently no effective vaccine or treatment options available to control JD, genetic selection may be an alternative strategy to enhance JD resistance. Numerous Single Nucleotide Polymorphisms (SNPs) have been reported to be associated with MAP infection status based on published genome-wide association and candidate gene studies. The main objective of this study was to validate these SNPs that were previously identified to be associated with JD by testing their effect on Holstein bulls' estimated breeding values (EBVs) for milk ELISA test scores, an indirect indicator of MAP infection status in cattle. RESULTS Three SNPs, rs41810662, rs41617133 and rs110225854, located on Bos taurus autosomes (BTA) 16, 23 and 26, respectively, were confirmed as significantly associated with Holstein bulls' EBVs for milk ELISA test score (FDR < 0.01) based on General Quasi Likelihood Scoring analysis (GQLS) analysis. Single-SNP regression analysis identified four SNPs that were associated with sire EBVs (FDR < 0.05). This includes two SNPs that were common with GQLS (rs41810662 and rs41617133), with the other two SNPs being rs110494981 and rs136182707, located on BTA9 and BTA16, respectively. CONCLUSIONS The findings of this study validate the association of SNPs with JD MAP infection status and highlight the need to further investigate the genomic regions harboring these SNPs.
Collapse
Affiliation(s)
- Sanjay Mallikarjunappa
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada.,Animal and Bioscience Research Department, Teagasc, Grange, Co. Meath, Ireland
| | - Flavio S Schenkel
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Luiz F Brito
- Department of Animal Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Nathalie Bissonnette
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC, J1M 0C8, Canada
| | - Filippo Miglior
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | | | | | - Kieran G Meade
- Animal and Bioscience Research Department, Teagasc, Grange, Co. Meath, Ireland.
| | - Niel A Karrow
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| |
Collapse
|
37
|
Borkowski EA, Redman EM, Chant R, Avula J, Menzies PI, Karrow NA, Lillie BN, Sears W, Gilleard JS, Peregrine AS. Comparison of ITS-2 rDNA nemabiome sequencing with morphological identification to quantify gastrointestinal nematode community species composition in small ruminant feces. Vet Parasitol 2020; 282:109104. [PMID: 32446107 DOI: 10.1016/j.vetpar.2020.109104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 02/07/2023]
Abstract
Mixed gastrointestinal nematode (GIN) infections are a common and significant cause of financial loss for small ruminant producers. Morphologic examination of third-stage larvae (L3) can be used to identify species composition in feces but has limitations due to the requirement for specialized expertise and the extensive time (8-15 d depending on method used) and labour involved. Moreover, differential development and survival of larvae during coproculture to the third stage often occurs. Deep amplicon sequencing of the ITS-2 rDNA locus of first-stage larvae (L1) allows for higher throughput with reduced specialist labour and reduces the risk of misidentification. Harvesting of L1 soon after hatching is also faster and further reduces labour as well as biases that can occur due to differential larval development and survival. This study compares the results of morphologic examination of L3 with those of ITS-2 rDNA deep amplicon sequencing of L1 from a set of pooled fecal samples. The proportions of eggs that were successfully recovered as larvae following culture to L3 and L1 were also compared. Larval recovery rate was significantly lower from L3 cultures than from L1 cultures (p < 0.001); eggs were 238.7 times less likely to develop to L3 than to L1 (95 % confidence interval for odds ratio 80.0-712.0). Significantly lower proportions of Teladorsagia circumcincta (odds ratio = 3.1, p = 0.008) and higher proportions of Trichostrongylus spp. (p = 0.009) were identified using morphologic examination of L3 compared with deep amplicon sequencing of L1 on the same samples. This is consistent with previous reports of differential survival of these species in L3 cultures. These results indicate that deep amplicon sequencing of L1 may reduce bias introduced by differential GIN survival to L3 in small ruminants.
Collapse
Affiliation(s)
- Emma A Borkowski
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road E, Guelph, Ontario, N1G 2W1, Canada.
| | - Elizabeth M Redman
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada.
| | - Rebecca Chant
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road E, Guelph, Ontario, N1G 2W1, Canada.
| | - Jacob Avula
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road E, Guelph, Ontario, N1G 2W1, Canada.
| | - Paula I Menzies
- Department of Population Medicine, Ontario Veterinary College, University of Guelph 50 Stone Road E, Guelph, Ontario, N1G 2W1, Canada.
| | - Niel A Karrow
- Department of Animal Biosciences, Ontario Agricultural College, University of Guelph 50 Stone Road E, Guelph, Ontario, N1G 2W1, Canada.
| | - Brandon N Lillie
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road E, Guelph, Ontario, N1G 2W1, Canada.
| | - William Sears
- Department of Population Medicine, Ontario Veterinary College, University of Guelph 50 Stone Road E, Guelph, Ontario, N1G 2W1, Canada.
| | - John S Gilleard
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada.
| | - Andrew S Peregrine
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road E, Guelph, Ontario, N1G 2W1, Canada.
| |
Collapse
|
38
|
Naylor D, Sharma A, Li Z, Monteith G, Sullivan T, Canovas A, Mallard BA, Baes C, Karrow NA. Short communication: Characterizing ovine serum stress biomarkers during endotoxemia. J Dairy Sci 2020; 103:5501-5508. [PMID: 32307170 DOI: 10.3168/jds.2019-17718] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/13/2020] [Indexed: 12/13/2022]
Abstract
Breeding stress-resilient livestock is a potential strategy to help mitigate the negative effect of environmental and pathogenic stressors. The hypothalamic-pituitary-adrenal axis and immune system are activated during stress events and release mediators into the circulation that help restore physiological homeostasis. The purpose of this study was to assess a comprehensive set of circulatory mediators released in response to an acute immune stress challenge to identify candidate biomarkers that can be used for the selection of stress-resilient animals. Fifteen female lambs were stress challenged with an intravenous bolus of lipopolysaccharide (LPS; 400 ng/kg), and blood was collected from the jugular vein at 0, 2, 4, and 6 h after LPS challenge to identify and monitor candidate stress biomarkers; temperature was also recorded over time. Biomarker responses were evaluated with a repeated-measures model to compare time points with baseline values. As expected, all sheep had a monophasic febrile response to LPS challenge, and cortisol increased and returned to baseline by 6 h. The cytokines tumor necrosis factor-α, IL-6, IFN-γ (proinflammatory), and IL-10 (anti-inflammatory) increased, but only tumor necrosis factor-α returned to baseline during the monitoring period. The cytokines IL-1α, IL-1β, IL-17α (proinflammatory), and IL-4 (anti-inflammatory) did not respond to LPS challenge. All chemokines (CCL2, CCL3, CCL4, CXCL10, and IL-8) responded to LPS challenge; however, only CCL2, CCL3, CCL4, and CXCL10 increased over time, and only CCL3, CCL4, and CXCL10 returned to baseline during the monitoring period. MicroRNA (miR-145, miR-233, and miR-1246) also increased and remained elevated during the study. In summary, the LPS challenge induced a strong stress response in Rideau-Dorset sheep that could be monitored with a distinct profile of circulatory biomarkers.
Collapse
Affiliation(s)
- D Naylor
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - A Sharma
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Z Li
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - G Monteith
- Department of Clinical Studies, Ontario Veterinary College, Guelph, ON, N1G 2W1, Canada
| | - T Sullivan
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - A Canovas
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - B A Mallard
- Department of Pathobiology, Ontario Veterinary College, Guelph, ON, N1G 2W1, Canada
| | - C Baes
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada; Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, 3001, Switzerland
| | - N A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada.
| |
Collapse
|
39
|
Li M, Gao Q, Wang M, Liang Y, Sun Y, Chen Z, Zhang H, Karrow NA, Yang Z, Mao Y. Polymorphisms in Fatty Acid Desaturase 2 Gene are Associated with Milk Production Traits in Chinese Holstein Cows. Animals (Basel) 2020; 10:ani10040671. [PMID: 32290630 PMCID: PMC7222784 DOI: 10.3390/ani10040671] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/07/2020] [Accepted: 04/10/2020] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Searching for causative polymorphisms underlying the variability of milk production traits and then incorporating them into breeding programs are very effective ways to improve the efficiency and reliability of conventional dairy cattle breeding. Fatty acid desaturase 2 (FADS2) plays a pivotal role in the biosynthesis of polyunsaturated fatty acids. Previous studies provided evidence that FADS2 was one of the most downregulated genes during negative energy balance in the liver of postpartum dairy cattle. Genes involved in the energetic pathways may influence other production traits, such as protein, fat and milk yields. Therefore, in the present study, we investigated the common genetic variants of the FADS2 gene in Chinese Holstein cows. Our results provided direct evidence that FADS2 was an interesting candidate for selection to increase milk production and improve resistance against mastitis. Abstract This study investigated the single nucleotide polymorphisms (SNPs) of Fatty acid desaturase 2 (FADS2) gene and further explored their genetic effects on conventionally collected milk production traits in Chinese Holstein cows using 18,264 test-day records of 841 cows. One missense mutation c. 908 C > T (SNP site in the complementary DNA sequence), which caused an amino acid change from alanine to valine (294Ala > Val), and two 3’ untranslated region (UTR) SNPs, c.1571 G > A and c.2776 A > G were finally identified. The SNP c.908 C > T was significantly associated with test-day milk yield, fat percentage and 305-day milk, fat and protein yield. In particular, the T allele of the SNP c.908 C > T showed a significant association with decreased somatic cell score (SCS) in the investigated population. Significant relationship between the SNP c.1571 G > A and 305-day milk yield showed that genotype GG was linked to the highest milk yield. Substituting the allele G for A at the c.2776 A > G locus resulted in a decrease of protein percentage. Our results demonstrated that FADS2 was an interesting candidate for selection to increase milk production and improve resistance against mastitis.
Collapse
Affiliation(s)
- Mingxun Li
- Key Laboratory of Animal Genetics & Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; (M.L.); (Q.G.); (M.W.); (Y.L.); (Z.C.); (H.Z.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China;
| | - Qisong Gao
- Key Laboratory of Animal Genetics & Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; (M.L.); (Q.G.); (M.W.); (Y.L.); (Z.C.); (H.Z.); (Z.Y.)
| | - Mengqi Wang
- Key Laboratory of Animal Genetics & Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; (M.L.); (Q.G.); (M.W.); (Y.L.); (Z.C.); (H.Z.); (Z.Y.)
| | - Yan Liang
- Key Laboratory of Animal Genetics & Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; (M.L.); (Q.G.); (M.W.); (Y.L.); (Z.C.); (H.Z.); (Z.Y.)
| | - Yujia Sun
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China;
| | - Zhi Chen
- Key Laboratory of Animal Genetics & Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; (M.L.); (Q.G.); (M.W.); (Y.L.); (Z.C.); (H.Z.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China;
| | - Huimin Zhang
- Key Laboratory of Animal Genetics & Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; (M.L.); (Q.G.); (M.W.); (Y.L.); (Z.C.); (H.Z.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China;
| | - Niel A. Karrow
- Center for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Zhangping Yang
- Key Laboratory of Animal Genetics & Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; (M.L.); (Q.G.); (M.W.); (Y.L.); (Z.C.); (H.Z.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China;
| | - Yongjiang Mao
- Key Laboratory of Animal Genetics & Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; (M.L.); (Q.G.); (M.W.); (Y.L.); (Z.C.); (H.Z.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China;
- Correspondence:
| |
Collapse
|
40
|
Cheng K, Tang Q, Huang Y, Liu X, Karrow NA, Wang C. Effect of vitamin D 3 on the immunomodulation of head kidney after Edwardsiella ictaluri challenge in yellow catfish (Pelteobagrus fulvidraco). Fish Shellfish Immunol 2020; 99:353-361. [PMID: 32081806 DOI: 10.1016/j.fsi.2020.02.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 02/08/2020] [Accepted: 02/12/2020] [Indexed: 06/10/2023]
Abstract
Edwardsiella ictaluri (E. ictaluri) causes severe infections in yellow catfish (Pelteobagrus fulvidraco), which leads to a massive loss in the aquaculture industry especially in catfish commercial production. Previous studies have confirmed that vitamin D3 is essential in immune regulation in mammals. Based on next-generation sequencing, this study explored the immunomodulatory effects of dietary vitamin D3 on the head kidney of yellow catfish after E. ictaluri challenge. Current results showed that increasing the content of dietary vitamin D3 within the experimental concentration range (1120IU/kg-16600IU/kg) could reduce the mortality of the yellow catfish after E. ictaluri challenge. Results of the next-generation sequencing showed that dietary vitamin D3 regulates the immune mechanism of the head kidney mainly through three pathways i.e. negative regulation of interferon-β production, negative regulation of interleukin-6 production and neutrophil chemotaxis. Proteins HSPA8, MAP4K4 and MRC1 may be involved in vitamin D3-mediated immunoregulation in the head kidney. qPCR results showed that increasing the content of dietary vitamin D3 can improve the immune function of the yellow catfish by down-regulating ifn-β and pro-inflammatory factors tnf-α, il1-β, il-6, il-8 and up-regulating the anti-inflammatory factor il-10. The above results indicated that dietary addition of vitamin D3 regulated the immune response in head kidney of yellow catfish and helped the fish to resist the negative effects of infection by E. ictaluri in a dose-dependent manner.
Collapse
Affiliation(s)
- Ke Cheng
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qin Tang
- Department of Genetics, Albert Einstein College of Medicine, 1301 Morris Park Ave., Bronx, NY, 10461, USA
| | - Yanqing Huang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China
| | - Xiaoling Liu
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, ON, N1G 2W1, Canada
| | - Chunfang Wang
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
| |
Collapse
|
41
|
Peixoto MRLV, Karrow NA, Newman A, Widowski TM. Effects of Maternal Stress on Measures of Anxiety and Fearfulness in Different Strains of Laying Hens. Front Vet Sci 2020; 7:128. [PMID: 32292791 PMCID: PMC7118700 DOI: 10.3389/fvets.2020.00128] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/20/2020] [Indexed: 01/21/2023] Open
Abstract
Maternal stress can affect the offspring of birds, possibly due to hormone deposition in the egg. Additionally, phenotypic diversity resulting from domestication and selection for productivity has created a variety of poultry lines that may cope with stress differently. In this study, we investigated the effects of maternal stress on the behavior of different strains of laying hens and the role of corticosterone as its mediator. For this, fertilized eggs of five genetic lines-two brown (Brown 1 and 2), two white (White 1 and 2), and one pure line White Leghorn-were reared identically as four flocks of 27 birds (24F: 3M) per strain. Each strain was equally separated into two groups: Maternal Stress ("MS"), where hens were subjected to a series of daily acute psychological stressors for 8 days before egg collection, and "Control," which received routine husbandry. Fertile eggs from both treatments were collected at three different ages forming different offspring groups that were treated as replicates; additional eggs from Control were injected either with corticosterone diluted in a vehicle solution ("CORT") or just "Vehicle." Eggs from each replicate were incubated and hatched, and offspring (N = 1,919) were brooded under identical conditions. To measure the effects of maternal stress on anxiety and fear-like behavior, offspring were subjected to a social isolation test (SI) between 5 and 10 days of age and a tonic immobility test (TI) at 9 weeks of age. Compared to Control, MS decreased the number of distress vocalizations emitted by White 2 in SI. No effects of MS were observed in TI, and no effects of CORT were observed in any tests. Overall, brown lines vocalized more in SI and remained in TI for a longer duration than white strains, suggesting genetic differences in fear behavior. Females vocalized more than males in TI and showed a trend toward significance for the same trait in SI. Overall, results suggest that the effects of maternal stress on fearfulness are not directly mediated by corticosterone. Moreover, it highlights behavioral differences across various strains of laying hens, suggesting that fear responses are highly dependent on genotype.
Collapse
Affiliation(s)
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Amy Newman
- Department of Integrative Biology, University of Guelph, Guelph, ON, Canada
| | - Tina M. Widowski
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| |
Collapse
|
42
|
Li NY, Sun ZJ, Ansari AR, Cui L, Hu YF, Li ZW, Briens M, Kai L, Sun LH, Karrow NA, Liu HZ. Impact of Maternal Selenium Supplementation from Late Gestation and Lactation on Piglet Immune Function. Biol Trace Elem Res 2020; 194:159-167. [PMID: 31154570 DOI: 10.1007/s12011-019-01754-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 05/13/2019] [Indexed: 12/18/2022]
Abstract
The present work aimed at assessing passive, innate, and acquired immunity in piglets from sows supplemented with either organic or inorganic selenium (Se). A total of 12 multiparous pregnant sows were randomly allocated to three groups: selenium-deficient, corn and soy-based diet base diet (BD), 0.3 mg Se/kg as hydroxy-selenomethionine (OH-SeMet), and 0.3 mg Se/kg as sodium selenite (SS). The feeding trial was carried out from gd 84 to weaning on postpartum day 21 (ppd 21). On gd 98 and 105, sows were vaccinated with hen egg white lysozyme (HEWL) to assess passive immunity. On ppd 23, weaned piglets were intramuscularly challenged with lipopolysaccharide (LPS) to trigger an acute-phase response. On ppd 14, 28, and 35, piglets were vaccinated with ovalbumin (OVA) to assess OVA-specific immunoglobulin G (IgG) and dermal hypersensitivity responses. Se levels in piglet plasma, muscle, and liver on ppd 21 were higher in OH-SeMet group. On ppd 2, piglet HEWL-specific IgG levels in OH-SeMet group were significantly increased. IL-10 and haptoglobin (HP) levels in OH-SeMet group were significantly increased 2 h and 48 h post-LPS simulation, respectively. The OVA-specific IgG levels in BD group were significantly higher than the other two groups, and the IL-4 concentration following whole blood ex vivo challenge with either OVA or mitogen was significantly increased in OH-SeMet group. OVA-specific skin swelling was lower in OH-SeMet and SS groups at 3 h and 6 h. This suggests that sow supplementation with OH-SeMet enhances mainly passive immunity through IgG maternal transfer and can influence piglet innate and acquired immunity.
Collapse
Affiliation(s)
- Ning-Ya Li
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhi-Jian Sun
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Abdur Rahman Ansari
- Section of Anatomy and Histology, Department of Basic Sciences, College of Veterinary and Animal Sciences (CVAS) Jhang, University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan
| | - Lei Cui
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ya-Fang Hu
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zi-Wei Li
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G2W1, Canada
| | | | - Lei Kai
- Adisseo Life Science, Shanghai, China
| | - Lv-Hui Sun
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G2W1, Canada.
| | - Hua-Zhen Liu
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China.
| |
Collapse
|
43
|
Akbari Moghaddam Kakhki R, Price KR, Moats J, Bédécarrats G, Karrow NA, Kiarie EG. Impact of feeding microalgae (Aurantiochytrium limacinum) and co-extruded mixture of full-fat flaxseed as sources of n-3 fatty acids to ISA brown and Shaver white breeders and progeny on pullet skeletal attributes at hatch through to 18 weeks of age. Poult Sci 2020; 99:2087-2099. [PMID: 32241494 PMCID: PMC7587698 DOI: 10.1016/j.psj.2019.12.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/17/2019] [Accepted: 12/01/2019] [Indexed: 12/26/2022] Open
Abstract
Impact of feeding n-3 fatty acids (FA) to ISA brown and Shaver white breeders and their progeny on bone development in pullets was investigated. Breeders were fed Control (CON); CON + 1% microalgae (DMA: Aurantiochytrium limacinum) as the source of docosahexaenoic acid; and CON + 2.6% of a co-extruded mixture of full-fat flaxseed (FFF) and pulses mixture as source of α-linolenic acid. Test diets (DMA and FFF) were balanced for total n-3 FA and n-6: n-3 FA ratio. Samples of day-old progeny were euthanized for bone mineral content (BMC) and tibia collagen type II. The remaining pullets were fed posthatch treatments as follows: from breeder CON: CON (CON-CON), DMA (CON-DMA), and FFF (CON-FFF), from breeder DMA: CON (DMA-CON) and DMA (DMA-DMA) and from breeder FFF: CON (FFF-CON) and FFF (FFF-FFF). A total of 60 pullets per posthatch diets were reared in cages (12 pullets/cage, n = 5) with free access to feed and water, bled at 6, 12, and 18 wk of age (WOA) for bone turnover markers and necropsied at 18 WOA for tibia and femur samples. Day-old pullets from breeder fed CON had greater BMC (P < 0.001) relative to those from breeders fed other diets. There was strain and diet interaction (P ≤ 0.024) on tibia breaking strength (TBS) and tibia cortical ash concentration at 18 WOA such that diet responses were only observed in Shaver white pullets. In this context, TBS of DMA-DMA and FFF-FFF was greater than for pullets originating from CON breeder, and the cortical ash weight of DMA-DMA and FFF-FFF pullets was 23.8 and 20.2%, respectively, higher than for CON-CON pullets. In conclusions, the strain effects were strong on tibia attributes on 18-week-old pullets. Breeder feeding of n-3 FA was more effective when concomitant with posthatch feeding of n-3 FA in supporting the skeletal strength and cortical bone development in Shaver white pullets. Further investigations are warranted to establish the impact these strategies on skeletal health during laying cycle.
Collapse
Affiliation(s)
| | | | | | - G Bédécarrats
- Department of Animal Biosciences, University of Guelph, Guelph, ON
| | - N A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON
| | - E G Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON.
| |
Collapse
|
44
|
Xu R, Karrow NA, Shandilya UK, Sun LH, Kitazawa H. In-Vitro Cell Culture for Efficient Assessment of Mycotoxin Exposure, Toxicity and Risk Mitigation. Toxins (Basel) 2020; 12:E146. [PMID: 32120954 PMCID: PMC7150844 DOI: 10.3390/toxins12030146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 12/11/2022] Open
Abstract
Mycotoxins are toxic secondary fungal metabolites that commonly contaminate crops and food by-products and thus, animal feed. Ingestion of mycotoxins can lead to mycotoxicosis in both animals and humans, and at subclinical concentrations may affect animal production and adulterate feed and animal by-products. Mycotoxicity mechanisms of action (MOA) are largely unknown, and co-contamination, which is often the case, raises the likelihood of mycotoxin interactions. Mitigation strategies for reducing the risk of mycotoxicity are diverse and may not necessarily provide protection against all mycotoxins. These factors, as well as the species-specific risk of toxicity, collectively make an assessment of exposure, toxicity, and risk mitigation very challenging and costly; thus, in-vitro cell culture models provide a useful tool for their initial assessment. Since ingestion is the most common route of mycotoxin exposure, the intestinal epithelial barrier comprised of epithelial cells (IECs) and immune cells such as macrophages, represents ground zero where mycotoxins are absorbed, biotransformed, and elicit toxicity. This article aims to review different in-vitro IEC or co-culture models that can be used for assessing mycotoxin exposure, toxicity, and risk mitigation, and their suitability and limitations for the safety assessment of animal foods and food by-products.
Collapse
Affiliation(s)
- Ran Xu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (R.X.); (U.K.S.)
| | - Niel A. Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (R.X.); (U.K.S.)
| | - Umesh K. Shandilya
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (R.X.); (U.K.S.)
| | - Lv-hui Sun
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
| | - Haruki Kitazawa
- Food and Feed Immunology Group, Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan;
- Livestock Immunology Unit, International Education and Research Center for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| |
Collapse
|
45
|
Peixoto MRLV, Karrow NA, Widowski TM. Effects of prenatal stress and genetics on embryonic survival and offspring growth of laying hens. Poult Sci 2020; 99:1618-1627. [PMID: 32111329 PMCID: PMC7587848 DOI: 10.1016/j.psj.2019.10.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/01/2019] [Accepted: 10/07/2019] [Indexed: 12/27/2022] Open
Abstract
Early-life exposure to stressors can shape the phenotype of the offspring resulting in changes that may affect their prehatch and posthatch development. This can be modeled indirectly through maternal exposure to stressors (natural model) or by offspring exposure to stress hormones (pharmacological model). In this study, both models were used to investigate the effects of genetic line on hatchability, late embryonic mortality, sex ratio, and body weight until 17 wk of age. To form the parent stock, fertilized eggs of 4 commercial genetic lines — two brown (brown 1 and 2), two white (white 1 and 2), and a pure line White Leghorn — were incubated, hatched, and housed identically in 4 flocks of 27 birds (24 females and 3 males) per strain. Each strain was equally separated into 2 groups: “maternal stress,” where hens were subjected to a series of acute psychological stressors (e.g., physical restraint, transportation) for 8 D before egg collection, and “control,” where hens received routine husbandry. At 3 maternal ages, fertile eggs from both treatments were collected, and additional eggs from the control group were injected with corticosterone (10 ng/mL egg content) (“CORT”). A “vehicle” treatment was included to account for effects of egg manipulation. Each maternal age comprised a replicate over time. Eggs were incubated and hatched, and the offspring (N = 1,919) were brooded until 17 wk under identical conditions. The results show that prenatal stress interacted with strain to decrease embryonic survival and growth. Among all strains, brown 2 was consistently the most affected line in both prehatch and posthatch development. Our study shows that embryonic survival and offspring growth are mostly affected by the pharmacological model and that strain differences may increase susceptibility to prenatal stress. Moreover, it suggests that the natural stressor model may be useful for quantifying the response of the mother to stressors, whereas the pharmacological model may be useful for quantifying the response of the embryo to increased levels of corticosterone.
Collapse
Affiliation(s)
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1
| | - Tina M Widowski
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1.
| |
Collapse
|
46
|
You L, Lee AV, Oh SY, Fisher-Heffernan RE, Edwards M, de Lange K, Karrow NA. Effect of lipopolysaccharide-induced immune stimulation and maternal fish oil and microalgae supplementation during late pregnancy on nursery pig hypothalamic-pituitary-adrenal function1. J Anim Sci 2019; 97:2940-2951. [PMID: 31081510 DOI: 10.1093/jas/skz166] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 05/11/2019] [Indexed: 01/18/2023] Open
Abstract
The present study used Escherichia coli lipopolysaccharide (LPS) to investigate whether maternal immune challenge during late gestation altered programming of the offspring hypothalamus and hypothalamic-pituitary-adrenal axis (HPAA). In addition, interactions of maternal diet, supplementation with fish oil (FO) or microalgae (AL), and complex vs. simple weaning diets were investigated. Briefly, Landrace × Yorkshire sows (N = 48) were randomly assigned to diets supplemented with FO, AL, or a standard gestation control diet (CON) from day 75 of gestation (gd 75) until parturition. On gd 112, half the sows from each dietary treatment were immune challenged with LPS (10 μg/kg BW) or saline as a control. At 21 d postpartum, the offspring were weaned, and half the animals from each maternal treatment were allocated to either a complex or simple weaning diet. At 28 d postpartum, the offspring's hourly fever and 2-h cortisol responses to LPS immune challenge (40 μg/kg BW) were measured to assess hypothalamus and HPAA function. Results indicated that the maternal temperature of sows on the FO diet returned to baseline levels faster than sows on the AL and CON diets after LPS immune challenge (P < 0.05). In contrast, there was no difference in the maternal cortisol response across the dietary treatments (P > 0.10). Regardless of the dietary treatments, the maternal LPS immune challenge induced a greater cortisol response in male offspring (P = 0.05) and a greater fever response in female offspring (P = 0.03) when they were LPS immune challenged post-weaning. Male offspring from LPS-immune-challenged sows fed the FO and AL diets had a greater fever response than male offspring from the maternal CON diet group (P ≤ 0.05). Last, no effect of the complex or simple weaning diets was observed for the nursery pig cortisol or fever responses to LPS immune challenge. In conclusion, LPS immune challenge during late pregnancy altered responsiveness of the offspring hypothalamus and HPAA to this same microbial stressor, and a sex-specific response was influenced by maternal dietary supplementation with FO and AL.
Collapse
Affiliation(s)
- Lan You
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Alison V Lee
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Se-Young Oh
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | | | - Michelle Edwards
- Statistical Consultant Service, Ontario Agriculture College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Kees de Lange
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| |
Collapse
|
47
|
Li N, Sun Z, Karrow NA, Briens M, De Marco M, Liu H. 185 Impact of hydroxy-selenomethionine supplementation during late gestation and lactation in sows on piglet immunocompetence. J Anim Sci 2019. [DOI: 10.1093/jas/skz122.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
The benefits of selenium (Se) supplementation during pregnancy and lactation in sows on piglet immunocompetence are not yet fully understood. This study aimed to assess piglet immune status when sows were fed Se-deficient or supplemented diets with sodium selenite (SS) or hydroxy-selenomethionine (OH-SeMet). Twelve pregnant sows were randomly assigned to 3 dietary treatments (4 sows each): no supplemental Se (NC), SS at 0.3 mg Se/kg (SS-0.3), OH-SeMet at 0.3 mg Se/kg (SO-0.3). The trial was carried out from gestation day (gd) 84 to weaning on postpartum day (ppd) 21, at which time all the piglets received the same diet having as Se source SS. On gd 98 and 105, sows were vaccinated with hen egg white lysozyme (HEWL). On ppd 0 and 21, 8 piglets/treatment were euthanized to obtain blood and muscle samples for total Se analyses. Serum samples were collected from 8 female piglets/treatment on ppd 0 and 2 to assess antigen-specific antibody titer for HEWL. On ppd 23, 6 weaned female piglets/treatment were intramuscular challenged with E. coli lipopolysaccharide (LPS) and serum IL-10 levels were measured at 24 h pre-challenge and at 2 and 48 h post challenge. At day 21, piglets from sows fed SO-0.3 showed the highest muscle Se deposition (P < 0.001). At ppd 0, no difference for HEWL-specific IgG was found while at ppd 2, SO-0.3 showed the highest HEWL-specific IgG concentration (P < 0.05). At 24 h pre-challenge and 2 h post LPS challenge, SO-0.3 showed a greater IL-10 level as compare to NC and SS-0.3, respectively (P < 0.05); no difference was found for the same parameter at 48 h post challenge. Piglets from SO supplemented sows exhibited stronger early immune response to LPS challenge. This study indicates the importance of sow Se supplementation with a pure organic form of Se such as OH-SeMet to enhance piglets Se and immune status.
Collapse
Affiliation(s)
- Ningya Li
- College of Animal Science and Veterinary Medicine, Huazhong Agricultural University
| | - Zhijian Sun
- College of Animal Science and Veterinary Medicine, Huazhong Agricultural University
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph
| | | | | | - Huazhen Liu
- College of Animal Science and Veterinary Medicine, Huazhong Agricultural University
| |
Collapse
|
48
|
Mallikarjunappa S, Adnane M, Cormican P, Karrow NA, Meade KG. Characterization of the bovine salivary gland transcriptome associated with Mycobacterium avium subsp. paratuberculosis experimental challenge. BMC Genomics 2019; 20:491. [PMID: 31195975 PMCID: PMC6567491 DOI: 10.1186/s12864-019-5845-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/24/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Mycobacterium avium subsp. paratuberculosis (MAP), the etiologic agent of Johne's disease is spread between cattle via the fecal-oral route, yet the functional changes in the salivary gland associated with infection remain uncharacterized. In this study, we hypothesized that experimental challenge with MAP would induce stable changes in gene expression patterns in the salivary gland that may shed light on the mucosal immune response as well as the regional variation in immune capacity of this extensive gland. Holstein-Friesian cattle were euthanized 33 months' post oral challenge with MAP strain CIT003 and both the parotid and mandibular salivary glands were collected from healthy control (n = 5) and MAP exposed cattle (n = 5) for histopathological and transcriptomic analysis. RESULTS A total of 205, 21, 61, and 135 genes were significantly differentially expressed between control and MAP exposed cattle in dorsal mandibular (M1), ventral mandibular (M2), dorsal parotid (P1) and ventral parotid salivary glands (P2), respectively. Expression profiles varied between the structurally divergent parotid and mandibular gland sections which was also reflected in the enriched biological pathways identified. Changes in gene expression associated with MAP exposure were detected with significantly elevated expression of BoLA DR-ALPHA, BOLA-DRB3 and complement factors in MAP exposed cattle. In contrast, reduced expression of genes such as polymeric immunoglobin receptor (PIGR), TNFSF13, and the antimicrobial genes lactoferrin (LF) and lactoperoxidase (LPO) was detected in MAP exposed animals. CONCLUSIONS This first analysis of the transcriptomic profile of salivary glands in cattle adds an important layer to our understanding of salivary gland immune function. Transcriptomic changes associated with MAP exposure have been identified including reduced LF and LPO. These critical antimicrobial and immunoregulatory proteins are known to be secreted into saliva and their downregulation may contribute to disease susceptibility. Future work will focus on the validation of their expression levels in saliva from additional cattle of known infection status as a potential strategy to augment disease diagnosis.
Collapse
Affiliation(s)
- Sanjay Mallikarjunappa
- Animal & Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland.,Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Mounir Adnane
- Animal & Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland.,Institute of Veterinary Sciences, Ibn Khaldoun University, Tiaret, Algeria
| | - Paul Cormican
- Animal & Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland
| | - Niel A Karrow
- Department of Animal Biosciences, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Kieran G Meade
- Animal & Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland.
| |
Collapse
|
49
|
Naeem MA, Karrow NA, Ashraf MM, Wu J. Kinetic interaction between albendazole and florfenicol in healthy adult female Beetal goats. J BIOL REG HOMEOS AG 2019; 33:835-841. [PMID: 31190513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- M A Naeem
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R.China
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - N A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
| | - M M Ashraf
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - J Wu
- College of Animal Science, Tarim University, Alar City, Xinjiang P.R. China
| |
Collapse
|
50
|
Lee AV, You L, Oh SY, Li Z, Code A, Zhu C, Fisher-Heffernan RE, Regnault TRH, De Lange CFM, Huber LA, Karrow NA. Health Benefits of Supplementing Nursery Pig Diets with Microalgae or Fish Oil. Animals (Basel) 2019; 9:ani9030080. [PMID: 30841603 PMCID: PMC6465993 DOI: 10.3390/ani9030080] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 11/24/2022] Open
Abstract
Simple Summary Weaning is a stressful event and the associated stress can affect piglet’s growth and health. The inclusion of omega-3 polyunsaturated fatty acids (n-3 PUFA) in piglets’ diets may reduce the inflammation associated with stress occurring at weaning, allowing for optimal growth and health. Many n-3 PUFA sources are fish-based; however, the use of microalgae may provide a similar alternative to fish products. We therefore investigated the use of fish oil or microalgae in piglets’ diets in addition to less expensive plant-based protein sources and assessed the effects of piglets’ diet on growth and health. It was determined that the inclusion of fish oil or microalgae did not affect piglet’s growth, but dietary fish oil reduced feed intake when pigs were placed on a common diet. Microalgae and fish oil supplementation also decreased the stress response following an immune stress challenge. However, no effects of piglet’s diet were found on piglet’s immune response. Results from this trial suggest that microalgae and fish oil can differentially affect the piglet’s stress response, possibly due to different nutrient profiles in the two feed ingredients. Abstract Weaning stress can negatively impact a pig’s performance; dietary supplementation with omega-3 polyunsaturated fatty acids (n-3 PUFA) reduces inflammatory stress and promotes nursery pig’s health and growth. Fish oil (FO) is a major source of n-3 PUFA; however, microalgae (AL) may provide an alternative source of n-3 PUFA. The aim of this study was to assess the health benefits of supplementing a plant protein-based nursery diet with 3.12% AL or 1.25% FO providing equal total n-3 PUFA compared to a control (CON) diet. Seventy-two pigs were fed experimental diets for three weeks (phases 1 and 2), followed by a common standard diet for three weeks (phase 3). Following phase 2, 8 pigs per treatment underwent a lipopolysaccharide (LPS) immune stress challenge to assess the acute-phase response and 8 pigs per treatment were vaccinated with novel antigens to assess acquired immunity. No significant differences in piglets’ growth were observed, despite decreased feed intake in FO piglets compared to AL piglets in phase 3. AL supplementation tended to reduce, and FO supplementation significantly reduced the LPS-induced fever response. The AL pigs had significantly reduced cortisol responses, increased cytokine concentrations, and increased chromogranin A concentrations compared to FO and CON pigs following LPS challenge. Results suggest that AL or FO supplementation in nursery diets differentially modulate the acute-phase response, possibly due to different n-3 PUFA profiles between the two ingredients.
Collapse
Affiliation(s)
- Alison V Lee
- Department of Animal Biosciences, University of Guelph, ON N1G 2W1, Canada.
| | - Lan You
- Department of Animal Biosciences, University of Guelph, ON N1G 2W1, Canada.
| | - Se-Young Oh
- Department of Animal Biosciences, University of Guelph, ON N1G 2W1, Canada.
| | - Ziwei Li
- Department of Animal Biosciences, University of Guelph, ON N1G 2W1, Canada.
| | - Alexandra Code
- Department of Animal Biosciences, University of Guelph, ON N1G 2W1, Canada.
| | - Cuilan Zhu
- Department of Animal Biosciences, University of Guelph, ON N1G 2W1, Canada.
| | | | - Timothy R H Regnault
- Department of Obstetrics and Gynecology and Physiology and Pharmacology, Western University, London, ON N6A 5C1, Canada.
| | | | - Lee-Anne Huber
- Department of Animal Biosciences, University of Guelph, ON N1G 2W1, Canada.
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, ON N1G 2W1, Canada.
| |
Collapse
|