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Rattigan R, Wajda L, Vlasblom AA, Wolfe A, Zomer AL, Duim B, Wagenaar JA, Lawlor PG. Safety Evaluation of an Intranasally Applied Cocktail of Lactococcus lactis Strains in Pigs. Animals (Basel) 2023; 13:3442. [PMID: 38003060 PMCID: PMC10668741 DOI: 10.3390/ani13223442] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
Three Lactococcus lactis strains from the nasal microbiota of healthy pigs were identified as candidates for reducing MRSA in pigs. The safety of nasal administration of a cocktail of these strains was examined in new-born piglets. Six days pre-farrowing, twelve sows were assigned to the placebo or cocktail group (n = 6/group). After farrowing, piglets were administered with either 0.5 mL of the placebo or the cocktail to each nostril. Health status and body weight were monitored at regular time points. Two piglets from three sows/treatment group were euthanised at 24 h, 96 h and 14 d after birth, and conchae, lung and tonsil samples were collected for histopathological and gene expression analysis. Health scores were improved in the cocktail group between d1-5. Body weight and daily gains did not differ between groups. Both groups displayed histological indications of euthanasia and inflammation in the lungs, signifying the findings were not treatment related. The expression of pBD2, TLR9 and IL-1β in the nasal conchae differed between groups, indicating the cocktail has the potential to modulate immune responses. In summary, the L. lactis cocktail was well tolerated by piglets and there was no negative impact on health scores, growth or lung histopathology indicating that it is safe for administration to new-born piglets.
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Affiliation(s)
- Ruth Rattigan
- Teagasc Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 County Cork, Ireland
| | - Lukasz Wajda
- Teagasc Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 County Cork, Ireland
| | - Abel A. Vlasblom
- Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Alan Wolfe
- School of Veterinary Medicine, University College Dublin, Belfield, D04 V1W8 Dublin, Ireland
| | - Aldert L. Zomer
- Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Birgitta Duim
- Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Jaap A. Wagenaar
- Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Peadar G. Lawlor
- Teagasc Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 County Cork, Ireland
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Rattigan R, Lawlor PG, Cormican P, Crespo-Piazuelo D, Cullen J, Phelan JP, Ranjitkar S, Crispie F, Gardiner GE. Maternal and/or post-weaning supplementation with Bacillus altitudinis spores modulates the microbial composition of colostrum, digesta and faeces in pigs. Sci Rep 2023; 13:8900. [PMID: 37264062 DOI: 10.1038/s41598-023-33175-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 04/08/2023] [Indexed: 06/03/2023] Open
Abstract
This study examined the effects of maternal and/or post-weaning Bacillus altitudinis supplementation on the microbiota in sow colostrum and faeces, and offspring digesta and faeces. Sows (n = 12/group) were assigned to: (1) standard diet (CON), or (2) CON supplemented with probiotic B. altitudinis spores (PRO) from day (d)100 of gestation to weaning (d26 of lactation). At weaning, offspring were assigned to CON or PRO for 28d, resulting in: (1) CON/CON, (2) CON/PRO, (3) PRO/CON, and (4) PRO/PRO, after which all received CON. Samples were collected from sows and selected offspring (n = 10/group) for 16S rRNA gene sequencing. Rothia was more abundant in PRO sow colostrum. Sow faeces were not impacted but differences were identified in offspring faeces and digesta. Most were in the ileal digesta between PRO/CON and CON/CON on d8 post-weaning; i.e. Bacteroidota, Alloprevotella, Prevotella, Prevotellaceae, Turicibacter, Catenibacterium and Blautia were more abundant in PRO/CON, with Firmicutes and Blautia more abundant in PRO/PRO compared with CON/CON. Lactobacillus was more abundant in PRO/CON faeces on d118 post-weaning. This increased abundance of polysaccharide-fermenters (Prevotella, Alloprevotella, Prevotellaceae), butyrate-producers (Blautia) and Lactobacillus likely contributed to previously reported improvements in growth performance. Overall, maternal, rather than post-weaning, probiotic supplementation had the greatest impact on intestinal microbiota.
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Affiliation(s)
- Ruth Rattigan
- Eco-Innovation Research Centre, Department of Science, Waterford Campus, South East Technological University, Waterford, Ireland
| | - Peadar G Lawlor
- Pig Development Department, Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland
| | - Paul Cormican
- Animal and Grassland Research and Innovation Centre, Teagasc, Grange, Dunsany, Co. Meath, Ireland
| | - Daniel Crespo-Piazuelo
- Pig Development Department, Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland
| | - James Cullen
- Eco-Innovation Research Centre, Department of Science, Waterford Campus, South East Technological University, Waterford, Ireland
| | - John P Phelan
- Eco-Innovation Research Centre, Department of Science, Waterford Campus, South East Technological University, Waterford, Ireland
| | - Samir Ranjitkar
- Pig Development Department, Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland
| | - Fiona Crispie
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Food Research Centre, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland
| | - Gillian E Gardiner
- Eco-Innovation Research Centre, Department of Science, Waterford Campus, South East Technological University, Waterford, Ireland.
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Crespo-Piazuelo D, Lawlor PG, Ranjitkar S, Cormican P, Villodre C, Bouwhuis MA, Marsh A, Crispie F, Rattigan R, Gardiner GE. Intestinal microbiota modulation and improved growth in pigs with post-weaning antibiotic and ZnO supplementation but only subtle microbiota effects with Bacillus altitudinis. Sci Rep 2021; 11:23304. [PMID: 34857778 PMCID: PMC8639915 DOI: 10.1038/s41598-021-01826-x] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 09/30/2021] [Indexed: 11/25/2022] Open
Abstract
The objective was to evaluate the effect of dietary Bacillus altitudinis spore supplementation during day (D)0–28 post-weaning (PW) and/or D29–56 PW compared with antibiotic and zinc oxide (AB + ZnO) supplementation on pig growth and gut microbiota. Eighty piglets were selected at weaning and randomly assigned to one of five dietary treatments: (1) negative control (Con/Con); (2) probiotic spores from D29–56 PW (Con/Pro); (3) probiotic spores from D0–28 PW (Pro/Con); (4) probiotic spores from D0–56 PW (Pro/Pro) and (5) AB + ZnO from D0–28 PW. Overall, compared with the AB + ZnO group, the Pro/Con group had lower body weight, average daily gain and feed intake and the Pro/Pro group tended to have lower daily gain and feed intake. However, none of these parameters differed between any of the probiotic-treated groups and the Con/Con group. Overall, AB + ZnO-supplemented pigs had higher Bacteroidaceae and Prevotellaceae and lower Lactobacillaceae and Spirochaetaceae abundance compared to the Con/Con group, which may help to explain improvements in growth between D15–28 PW. The butyrate-producing genera Agathobacter, Faecalibacterium and Roseburia were more abundant in the Pro/Con group compared with the Con/Con group on D35 PW. Thus, whilst supplementation with B. altitudinis did not enhance pig growth performance, it did have a subtle, albeit potentially beneficial, impact on the intestinal microbiota.
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Affiliation(s)
- Daniel Crespo-Piazuelo
- Teagasc, Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Peadar G Lawlor
- Teagasc, Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Samir Ranjitkar
- Teagasc, Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Paul Cormican
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland.,APC Microbiome Institute, Cork, Ireland
| | - Carmen Villodre
- Teagasc, Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Meike A Bouwhuis
- Teagasc, Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Alan Marsh
- Eco-Innovation Research Centre, Department of Science, Waterford Institute of Technology, Waterford, Ireland
| | - Fiona Crispie
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland.,APC Microbiome Institute, Cork, Ireland
| | - Ruth Rattigan
- Eco-Innovation Research Centre, Department of Science, Waterford Institute of Technology, Waterford, Ireland
| | - Gillian E Gardiner
- Eco-Innovation Research Centre, Department of Science, Waterford Institute of Technology, Waterford, Ireland.
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O’Doherty JV, Venardou B, Rattigan R, Sweeney T. Feeding Marine Polysaccharides to Alleviate the Negative Effects Associated with Weaning in Pigs. Animals (Basel) 2021; 11:2644. [PMID: 34573610 PMCID: PMC8465377 DOI: 10.3390/ani11092644] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 07/29/2021] [Revised: 08/31/2021] [Accepted: 09/06/2021] [Indexed: 12/14/2022] Open
Abstract
In young pigs, the challenge of weaning frequently leads to dysbiosis. This predisposes pigs to intestinal infection such as post-weaning diarrhoea (PWD). Dietary interventions to reduce PWD have centred on dietary inclusion of antibiotic growth promoters (AGP) and antimicrobials in pig diets, or high concentrations of zinc oxide. These interventions are under scrutiny because of their role in promoting multidrug resistant bacteria and the accumulation of minerals in the environment. There are significant efforts being made to identify natural alternatives. Marine polysaccharides, such as laminarin and fucoidan from macroalgae and chitosan and chito-oligosaccharides from chitin, are an interesting group of marine dietary supplements, due to their prebiotic, antibacterial, anti-oxidant, and immunomodulatory activities. However, natural variability exists in the quantity, structure, and bioactivity of these polysaccharides between different macroalgae species and harvest seasons, while the wide range of available extraction methodologies and conditions results in further variation. This review will discuss the development of the gastrointestinal tract in the pig during the post-weaning period and how feeding marine polysaccharides in both the maternal and the post-weaned pig diet, can be used to alleviate the negative effects associated with weaning.
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Affiliation(s)
- John V. O’Doherty
- School of Agriculture and Food Science, University College Dublin, Belfield, D04 V1W8 Dublin 4, Ireland;
| | - Brigkita Venardou
- School of Veterinary Medicine, University College Dublin, Belfield, D04 V1W8 Dublin 4, Ireland; (B.V.); (T.S.)
| | - Ruth Rattigan
- School of Agriculture and Food Science, University College Dublin, Belfield, D04 V1W8 Dublin 4, Ireland;
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Belfield, D04 V1W8 Dublin 4, Ireland; (B.V.); (T.S.)
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Rattigan R, Sweeney T, Vigors S, Rajauria G, O'Doherty JV. Effects of reducing dietary crude protein concentration and supplementation with laminarin or zinc oxide on the faecal scores and colonic microbiota in newly weaned pigs. J Anim Physiol Anim Nutr (Berl) 2020; 104:1471-1483. [PMID: 32767416 DOI: 10.1111/jpn.13428] [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: 03/13/2020] [Revised: 06/09/2020] [Accepted: 06/18/2020] [Indexed: 12/14/2022]
Abstract
A 2 × 3 factorial design experiment was conducted to examine the effects of reducing dietary crude protein (CP) concentration and/or supplementation with zinc oxide (ZnO) or laminarin on faecal scores (FS) and the large intestinal microbiota post-weaning (PW). One hundred and forty-four pigs were assigned to (T1) 21% standard CP diet (SCP); (T2) SCP + ZnO (SCP ZnO); (T3) SCP + laminarin (SCP LAM); (T4) 18% low CP diet (LCP); (T5) LCP + ZnO (LCP ZnO); and (T6) LCP + laminarin (LCP LAM; n = 8 replicates/treatment). The LCP diet had no effect on FS (p > .05), it increased two measures of alpha diversity, reduced Bacteroidetes and increased Enterobacteriaceae and Helicobacteraceae in the colon relative to the SCP diet (p < .05). ZnO supplementation reduced FS and increased Ruminococcaceae compared with unsupplemented pigs (p < .05). ZnO supplementation increased the genera Frisingicoccus (p < .001), Lachnoclostridium (p < .05) and Peptoclostridium (p < .05) in the colon and reduced total caecal volatile fatty acids (VFA) concentrations compared with the unsupplemented and laminarin-supplemented pigs. Laminarin supplementation reduced FS compared with unsupplemented pigs but had no major effect on the microbiota compared with the unsupplemented pigs. There were CP concentration × additive interactions on both Firmicutes and Proteobacteria. Firmicutes were increased in the LCP ZnO group compared with the LCP group, but there was no difference between the SCP groups. Proteobacteria were reduced in the LCP ZnO group compared with the LCP and LCP LAM groups (p < .05), but there was no difference between the SCP groups. In conclusion, reducing CP did not improve FS; it increased the relative abundance of Enterobacteriaceae; however, it also increased bacterial diversity. Supplementation with ZnO and laminarin improved FS, although all groups had scores within the healthy range. ZnO altered the large intestinal microbiota and VFA concentrations; however, laminarin did not enhance these parameters, suggesting these compounds have differing modes of action.
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Affiliation(s)
- Ruth Rattigan
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - Stafford Vigors
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Gaurav Rajauria
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - John V O'Doherty
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
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Rattigan R, O’Doherty JV, Vigors S, Ryan MT, Sebastiano RS, Callanan JJ, Thornton K, Rajauria G, Margassery LM, Dobson ADW, O’Leary ND, Sweeney T. The Effects of the Marine-Derived Polysaccharides Laminarin and Chitosan on Aspects of Colonic Health in Pigs Challenged with Dextran Sodium Sulphate. Mar Drugs 2020; 18:md18050262. [PMID: 32429425 PMCID: PMC7281012 DOI: 10.3390/md18050262] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 02/06/2023] Open
Abstract
This study examined the effects of dietary supplementation with laminarin or chitosan on colonic health in pigs challenged with dextran sodium sulphate (DSS). Weaned pigs were assigned to: (1) a basal diet (n = 22); (2) a basal diet + laminarin (n = 10); and (3) a basal diet + chitosan (n = 10). On d35, the basal group was split, creating four groups: (1) the basal diet (control); (2) the basal diet + DSS; (3) the basal diet + laminarin + DSS; and (4) the basal diet + chitosan + DSS. From d39-42, the pigs were orally challenged with DSS. On d44, colonic tissue/digesta samples were collected. The basal DSS group had reduced growth, higher pathology score and an increased expression of MMP1, IL13 and IL23 compared with the controls (p < 0.05); these parameters were similar between the DSS-challenged groups (p > 0.05). In the basal DSS group, the relative abundance of beneficial taxa including Prevotella and Roseburia were reduced while Escherichia/Shigella were increased, compared with the controls (p < 0.05). The relative abundance of Escherichia/Shigella was reduced and the molar proportions of acetate were increased in the laminarin DSS group compared with the basal DSS group (p < 0.01), suggesting that laminarin has potential to prevent pathogen proliferation and enhance the volatile fatty acid profile in the colon in a porcine model of colitis.
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Affiliation(s)
- Ruth Rattigan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (R.R.); (J.V.O.); (S.V.); (G.R.)
| | - John V. O’Doherty
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (R.R.); (J.V.O.); (S.V.); (G.R.)
| | - Stafford Vigors
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (R.R.); (J.V.O.); (S.V.); (G.R.)
| | - Marion T. Ryan
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (M.T.R.); (R.S.S.); (K.T.)
| | - Rocco S. Sebastiano
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (M.T.R.); (R.S.S.); (K.T.)
| | - John J. Callanan
- Ross University School of Veterinary Medicine, St. Kitts, West Indies;
| | - Kevin Thornton
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (M.T.R.); (R.S.S.); (K.T.)
| | - Gaurav Rajauria
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (R.R.); (J.V.O.); (S.V.); (G.R.)
| | - Lekha M. Margassery
- School of Microbiology, University College Cork, Cork City T12 YN60, Ireland; (L.M.M.); (A.D.W.D.); (N.D.O.)
| | - Alan D. W. Dobson
- School of Microbiology, University College Cork, Cork City T12 YN60, Ireland; (L.M.M.); (A.D.W.D.); (N.D.O.)
- Environmental Research Institute, University College Cork, Cork City T12 YN60, Ireland
| | - Niall D. O’Leary
- School of Microbiology, University College Cork, Cork City T12 YN60, Ireland; (L.M.M.); (A.D.W.D.); (N.D.O.)
- Environmental Research Institute, University College Cork, Cork City T12 YN60, Ireland
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland; (M.T.R.); (R.S.S.); (K.T.)
- Correspondence: ; Tel.: +353-(0)17166244
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Vigors S, O’Doherty JV, Rattigan R, McDonnell MJ, Rajauria G, Sweeney T. Effect of a Laminarin Rich Macroalgal Extract on the Caecal and Colonic Microbiota in the Post-Weaned Pig. Mar Drugs 2020; 18:md18030157. [PMID: 32168972 PMCID: PMC7143854 DOI: 10.3390/md18030157] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [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: 01/29/2020] [Revised: 02/27/2020] [Accepted: 03/06/2020] [Indexed: 12/11/2022] Open
Abstract
Dietary supplementation with 300 ppm of a laminarin rich macroalgal extract reduces post-weaning intestinal dysfunction in pigs. A comprehensive analysis of the impact of laminarin on the intestinal microbiome during this period is essential to inform on the mode of action of this bioactivity. The objective of this study was to evaluate the effects of supplementing the diet of newly weaned pigs with 300 ppm of a laminarin rich extract, on animal performance, volatile fatty acids, and the intestinal microbiota using 16S rRNA gene sequencing. Pigs fed the laminarin-supplemented diet had higher average daily feed intake, growth rate, and body weight compared to pigs fed the control diet (p < 0.05). Pigs fed the laminarin-supplemented diet had reduced abundance of OTUs assigned to Enterobacteriaceae and increased abundance of OTUs assigned to the genus Prevotella (p < 0.05) compared to pigs fed the control diet. Enterobacteriaceae had negative relationships (p < 0.05) with average daily feed intake (ADFI), average daily gain (ADG), and butyric acid concentrations. In contrast, Prevotellaceae were positively correlated (p < 0.05) with ADFI, ADG, total VFA, acetic, propionic, butyric acids, and negatively correlated with isovaleric acid. Hence supplementation with a laminarin enriched extract potentially improves performance during the post-weaning period by promoting the proliferation of bacterial taxa such as Prevotella that favourably enhance nutrient digestion while reducing the load of potentially pathogenic bacterial taxa including Enterobacteriaceae.
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Affiliation(s)
- Stafford Vigors
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland; (S.V.); (R.R.); (M.J.M.); (G.R.)
| | - John V O’Doherty
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland; (S.V.); (R.R.); (M.J.M.); (G.R.)
- Correspondence: ; Tel.: +3531-716-7128
| | - Ruth Rattigan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland; (S.V.); (R.R.); (M.J.M.); (G.R.)
| | - Mary J McDonnell
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland; (S.V.); (R.R.); (M.J.M.); (G.R.)
| | - Gaurav Rajauria
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04 V1W8, Ireland; (S.V.); (R.R.); (M.J.M.); (G.R.)
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, D04 V1W8 Ireland;
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Vigors S, O’ Doherty J, McDonnell M, Rattigan R, Sweeney T. 369 An investigation into the influence of the seaweed extract laminarin on post-weaning pig performance and the intestinal microbiome. J Anim Sci 2019. [DOI: 10.1093/jas/skz258.269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Marine macroalgal derivatives such as laminarin have been considered as potential bioactive compounds in swine nutrition to improve post-weaning pig performance. However, a comprehensive understanding of the impact of these extracts on the intestinal microbiome and its subsequent influence on performance is not well characterized. Therefore, the objective of this study was to evaluate the effects of supplementing the diet of newly weaned pigs with laminarin, on animal performance and the intestinal microbiota using 16S rRNA gene sequencing. At 28 days of age, newly weaned pigs (n = 54) were assigned to one of two dietary groups: 1) basal diet and 2) basal diet + 300 ppm laminarin for a 14-day period. On day 15, nine pigs per treatment (one from each pen) were humanely euthanized and high-throughput sequencing of the V3-V4 hypervariable region of the bacterial 16S rRNA gene was performed on the Illumina MiSeq. Pigs fed the laminarin-supplemented diet had increased average daily feed intake, growth rate and body weight compared to pigs fed the control diet (P < 0.05). Pigs fed the laminarin supplemented diet had reduced abundances of Enterobacteriaceae (P < 0.05) compared to pigs fed the control diet. Enterobacteriaceae and Helicobacteraceae had negative relationships with average daily feed intake (ADFI), average daily gain (ADG) and butyric acid concentrations. In contrast, the beneficial Prevotellaceae were positively correlated with ADFI, ADG, total VFA, acetic, propionic, butyric and negatively correlated with isovaleric acid. Hence, supplementation with laminarin may accelerate the adoption of pigs to a post-weaning diet by promoting the proliferation of bacterial species that favourably enhance nutrient digestion and reduce the load of pathogenic bacteria impacting pig performance.
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Rattigan R, Sweeney T, Vigors S, Thornton K, Rajauria G, O’Doherty JV. The Effect of Increasing Inclusion Levels of a Fucoidan-Rich Extract Derived from Ascophyllum nodosum on Growth Performance and Aspects of Intestinal Health of Pigs Post-Weaning. Mar Drugs 2019; 17:E680. [PMID: 31801301 PMCID: PMC6950662 DOI: 10.3390/md17120680] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/26/2019] [Accepted: 11/27/2019] [Indexed: 02/06/2023] Open
Abstract
This study examines the effects of increasing dietary inclusion levels of fucoidan, from a 44% fucoidan extract on the growth performance and intestinal health of pigs post-weaning (PW). Seventy-two newly weaned pigs (8.4 kg (SD 1.06)) were assigned to: (T1) basal diet (BD); (T2) BD + 125 ppm fucoidan; (T3) BD + 250 ppm fucoidan (8 pens/treatment). The appropriate quantity of a 44% fucoidan extract was included to achieve these inclusion levels. Faecal scores were recorded daily. On d15 PW, samples were collected from the intestinal tract from 1 pig/pen from the BD and BD + 250 ppm fucoidan groups. Pigs supplemented with 250 ppm fucoidan had improved faecal scores and increased concentrations of total volatile fatty acids and propionate in the colon (p < 0.05). The fucoidan-rich extract reduced the expression of CLDN5 (duodenum), SCL5A1/SGLT1 and SI (jejunum) and TJP1, FABP2, and SLC5A1 (ileum) (p < 0.05). The extract reduced the relative abundance of Prevotella and Lachnospiraceae (p < 0.05) and increased the abundance of Helicobacter (p < 0.01) in the caecum. However, no negative impact on growth performance or small intestinal morphology was observed. Thus, the inclusion of 250 ppm fucoidan improves faecal consistency without affecting growth performance and therefore warrants further investigation as a supplement for the prevention of PW diarrhoea under more challenging commercial conditions.
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Affiliation(s)
- Ruth Rattigan
- School of Agriculture and Food Science, University College Dublin, Belfield, 4 Dublin, Ireland; (R.R.); (S.V.); (G.R.)
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Belfield, 4 Dublin, Ireland; (T.S.); (K.T.)
| | - Stafford Vigors
- School of Agriculture and Food Science, University College Dublin, Belfield, 4 Dublin, Ireland; (R.R.); (S.V.); (G.R.)
| | - Kevin Thornton
- School of Veterinary Medicine, University College Dublin, Belfield, 4 Dublin, Ireland; (T.S.); (K.T.)
| | - Gaurav Rajauria
- School of Agriculture and Food Science, University College Dublin, Belfield, 4 Dublin, Ireland; (R.R.); (S.V.); (G.R.)
| | - John V O’Doherty
- School of Agriculture and Food Science, University College Dublin, Belfield, 4 Dublin, Ireland; (R.R.); (S.V.); (G.R.)
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