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Maynard CJ, Gonzalez JM, Haginouchi T, Ellis OG, Jackson AR, Owens CM. Effects of nicotinamide riboside in ovo feeding on high-yield broiler performance, meat quality, and myopathy incidence. Front Physiol 2024; 15:1397442. [PMID: 38835727 PMCID: PMC11149420 DOI: 10.3389/fphys.2024.1397442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 04/23/2024] [Indexed: 06/06/2024] Open
Abstract
Introduction: The objective of this study was to examine the effects of in ovo nicotinamide riboside (NR) feeding on high-yield broiler growth and meat quality. Methods: Fertilized Cobb 700 by-product eggs (N = 3,240) were randomly assigned to one of four in ovo treatments and injected with 0 (0NR), 250 (250NR), 500 (500NR), or 1,000 (1,000NR) mM NR at incubation-day 10. Chicks were hatched, vent sexed, and randomly placed 18 per pen in one of 32 floor pens. On day 48, birds were processed and deboned. Results: There were dose effects for all part weights (p < 0.05). Pectoralis major weight of 250, 500, and 1,000NR carcasses were heavier than 0NR (p < 0.03) but did not differ from remaining NR doses (p > 0.26). Pectoralis minor weight of 250NR carcasses was greater (p < 0.01) than 0NR and did not differ from other NR tenders (p > 0.21). Pectoralis minor weight of 500 and 1,000NR carcasses was greater than 0NR (p < 0.09), but did not differ (P = 0.82) from each other. There were no dose effects for all Pectoralis major and minor myopathy scores and incidence except incidence of tenders scoring "0" and "1" for woody-like tender. Percentage of NR1,000 tenders scoring 0 and 1 for woody-like tender were less than and greater than all other treatments, respectively (p < 0.05). There were no differences among remaining NR doses and NR0 tenders (p > 0.10). There were dose effects for muscle fiber number (P = 0.03). There tended to be more muscle fibers within 250 and 1,000NR muscles compared to 0NR (p < 0.09). Pectoralis major muscle from 500NR did not differ in muscle fiber number compared to 250 and 1,000NR (p > 0.18), but had more (p < 0.01) fibers than 0NR muscle. There tended to be more fibers in 250 and 1,000NR muscles compared to 0NR muscle (p < 0.09). Discussion: Nicotinamide riboside in ovo feeding caused birds to produce heavier parts; however, myopathy scores and incidence were minimally affected which may have been due greater muscle fiber number.
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Affiliation(s)
- Clay J Maynard
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - John M Gonzalez
- Department of Animal and Dairy Science, University of Georgia, Athens, GA, United States
| | | | - Olivia G Ellis
- Department of Animal and Dairy Science, University of Georgia, Athens, GA, United States
| | | | - Casey M Owens
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
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Huang J, Xiong X, Zhang W, Chen X, Wei Y, Li H, Xie J, Wei Q, Zhou Q. Integrating miRNA and full-length transcriptome profiling to elucidate the mechanism of muscle growth in Muscovy ducks reveals key roles for miR-301a-3p/ANKRD1. BMC Genomics 2024; 25:340. [PMID: 38575872 PMCID: PMC10993543 DOI: 10.1186/s12864-024-10138-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 02/19/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND The popularity of Muscovy ducks is attributed not only to their conformation traits but also to their slightly higher content of breast and leg meat, as well as their stronger-tasting meat compared to that of typical domestic ducks. However, there is a lack of comprehensive systematic research on the development of breast muscle in Muscovy ducks. In addition, since the number of skeletal muscle myofibers is established during the embryonic period, this study conducted a full-length transcriptome sequencing and microRNA sequencing of the breast muscle. Muscovy ducks at four developmental stages, namely Embryonic Day 21 (E21), Embryonic Day 27 (E27), Hatching Day (D0), and Post-hatching Day 7 (D7), were used to isolate total RNA for analysis. RESULTS A total of 68,161 genes and 472 mature microRNAs were identified. In order to uncover deeper insights into the regulation of mRNA by miRNAs, we conducted an integration of the differentially expressed miRNAs (known as DEMs) with the differentially expressed genes (referred to as DEGs) across various developmental stages. This integration allowed us to make predictions regarding the interactions between miRNAs and mRNA. Through this analysis, we identified a total of 274 DEGs that may serve as potential targets for the 68 DEMs. In the predicted miRNA‒mRNA interaction networks, let-7b, miR-133a-3p, miR-301a-3p, and miR-338-3p were the hub miRNAs. In addition, multiple DEMs also showed predicted target relationships with the DEGs associated with skeletal system development. These identified DEGs and DEMs as well as their predicted interaction networks involved in the regulation of energy homeostasis and muscle development were most likely to play critical roles in facilitating the embryo-to-hatchling transition. A candidate miRNA, miR-301a-3p, exhibited increased expression during the differentiation of satellite cells and was downregulated in the breast muscle tissues of Muscovy ducks at E21 compared to E27. A dual-luciferase reporter assay suggested that the ANKRD1 gene, which encodes a transcription factor, is a direct target of miR-301a-3p. CONCLUSIONS miR-301a-3p suppressed the posttranscriptional activity of ANKRD1, which is an activator of satellite cell proliferation, as determined with gain- and loss-of-function experiments. miR-301a-3p functions as an inducer of myogenesis by targeting the ANKRD1 gene in Muscovy ducks. These results provide novel insights into the early developmental process of black Muscovy breast muscles and will improve understanding of the underlying molecular mechanisms.
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Affiliation(s)
- Jiangnan Huang
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China
| | - Xiaolan Xiong
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China
| | - Weihong Zhang
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China
| | - Xiaolian Chen
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China
| | - Yue Wei
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China
| | - Haiqin Li
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China
| | - Jinfang Xie
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China
| | - Qipeng Wei
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China.
| | - Quanyong Zhou
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, 330200, China.
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Yu B, Cai Z, Liu J, Zhang T, Feng X, Wang C, Li J, Gu Y, Zhang J. Identification of key differentially methylated genes in regulating muscle development and intramuscular fat deposition in chickens. Int J Biol Macromol 2024; 264:130737. [PMID: 38460642 DOI: 10.1016/j.ijbiomac.2024.130737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/26/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
Muscle development and intramuscular fat (IMF) deposition are intricate physiological processes characterized by multiple gene expressions and interactions. In this research, the phenotypic variations in the breast muscle of Jingyuan chickens were examined at three different time points: 42, 126, and 180 days old. Differential expression analysis and weighted gene co-expression network analysis (WGCNA) were performed to identify differentially methylated genes (DMGs) responsible for regulating muscle development and IMF deposition. The findings indicate a significant increase in breast muscle weight (BMW), myofiber diameter, and cross-sectional area, as well as IMF content, in correlation with the progressive number of growing days in Jingyuan chickens. The findings also revealed that 380 hypo-methylated and 253 hyper-methylated DMGs were identified between the three groups of breast muscle. Module gene and DMG association analysis identified m6A methylation-mediated multiple DMGs associated with muscle development and fat metabolism. In vitro cell modeling analysis reveals stage-specific differences in the expression of CUBN, MEGF10, BOP1, and BMPR2 during the differentiation of myoblasts and intramuscular preadipocytes. Cycloleucine treatment significantly inhibited the expression levels of CUBN, BOP1, and BMPR2, and promoted the expression of MEGF10. These results suggest that m6A methylation-mediated CUBN, MEGF10, BOP1, and BMPR2 can serve as potential candidate genes for regulating muscle development and IMF deposition, and provide an important theoretical basis for further investigation of the functional mechanism of m6A modification involved in adipogenesis.
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Affiliation(s)
- Baojun Yu
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Zhengyun Cai
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Jiamin Liu
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Tong Zhang
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Xiaofang Feng
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Chuanchuan Wang
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Jiwei Li
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Yaling Gu
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Juan Zhang
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China.
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Ma M, Li L, Zuo G, Xiao J, Chen J, He X, Song Z. Effect of Zinc Amino Acid Complexes on Growth Performance, Tissue Zinc Concentration, and Muscle Development of Broilers. Biol Trace Elem Res 2024; 202:291-306. [PMID: 37086354 DOI: 10.1007/s12011-023-03661-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/04/2023] [Indexed: 04/23/2023]
Abstract
The present study aimed to evaluate the effects of zinc amino acid complexes on growth performance, tissue zinc concentration, and muscle development in broilers. A total of 504 day-old male arbor acres broilers were randomly divided into seven treatments (fed with a basal diet or a basal diet supplemented with 120 mg kg-1 Zn as ZnSO4, 30, 60, 90 or 120 mg kg-1 Zn as ZnN, or 30 mg kg-1 Zn as ZnA separately). Each group had six replicates, with 12 birds per replicate. The results showed that the addition of 60 mg kg-1 ZnN significantly increased (P < 0.05) the average daily gain (ADG) and breast muscle percentage of broilers. Zinc concentration of ZnN and ZnA added groups were higher than (P < 0.05) that in the Zn sulfate group under the same addition dose. Except for the 30 mg kg-1 ZnN group, the muscle fiber diameter and cross-sectional area (CSA) were significantly increased (P < 0.05) in the ZnN addition groups. Compared with the basal diet group, adding ZnN significantly increased (P < 0.05) the expression of MTOR, MYOD, and MYOG at day 21 and decreased (P < 0.05) the expression of Atrogin-1. The expression levels of AKT, MTOR, P70S6K, and MYOD were increased at day 42, while the expression levels of MuRF1 and Atrogin-1 were decreased. Adhesion, backbone regulation of actin, MAPK, mTOR, and AMPK were significantly enriched as indicated by KEGG pathway enrichment analysis. In conclusion, zinc amino acid complexes could improve growth performance, tissue zinc concentration, and regulate breast muscle development.
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Affiliation(s)
- Mengmeng Ma
- College of Animal Science and Technology, Hunan Agricultural University, Hunan, 410128, China
- Hunan Engineering Research Center of Poultry Production Safety, Changsha, 410128, China
| | - Liwei Li
- College of Animal Science and Technology, Hunan Agricultural University, Hunan, 410128, China
- Hunan Engineering Research Center of Poultry Production Safety, Changsha, 410128, China
| | - Gang Zuo
- College of Animal Science and Technology, Hunan Agricultural University, Hunan, 410128, China
- Hunan Engineering Research Center of Poultry Production Safety, Changsha, 410128, China
- Beijing Deyuanshun Biotechnology Co., Ltd., Beijing, 102206, China
| | - Jian Xiao
- Hunan Xiang Jia Husbandry Limited By Share Ltd., Changde, 415000, Hunan, China
| | - Junlie Chen
- Hunan Xiang Jia Husbandry Limited By Share Ltd., Changde, 415000, Hunan, China
| | - Xi He
- College of Animal Science and Technology, Hunan Agricultural University, Hunan, 410128, China
- Hunan Engineering Research Center of Poultry Production Safety, Changsha, 410128, China
| | - Zehe Song
- College of Animal Science and Technology, Hunan Agricultural University, Hunan, 410128, China.
- Hunan Engineering Research Center of Poultry Production Safety, Changsha, 410128, China.
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Cruz FK, Figueroa CDN, Andrade KG, Kaneko IN, Bonagurio LP, Bezerra Júnior JS, Rossi RM, Murakami AE, Santos TC. Productive performance, breast growth and digestive system development in European quail subjected to post-hatch fasting for different periods. AN ACAD BRAS CIENC 2023; 95:e20191188. [PMID: 38055603 DOI: 10.1590/0001-3765202320191188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 08/13/2020] [Indexed: 12/08/2023] Open
Abstract
This study assessed the effect of different periods of post-hatch fasting on animal performance and breast and digestive system growth in European quail. Quail chicks were distributed in a completely randomized design, with four fasting periods (0, 24, 36, and 48 hs) and four replications of 40 birds per treatment. In 1 to 14-day-old chicks, weight gain decreased with increasing fasting time. Compensatory gain was observed from 15 days of age onward. Fasted quail had a lower length and relative weight of the digestive system than fed animals for up to 14 days. Histologically, the duodenal villus height was significantly lower in 3-day-old quail fasted for 36 hs than in those fasted for 48 hs, but this effect was not observed at 7 days. Scanning electron microscopy showed no differences in the small intestinal mucosa between fasted and fed birds at 3 days of age. Post-hatch fasting reduced the relative weight of the breast in quail aged 1 to 14 days but did not affect type IIa and IIb fiber diameter at 35 days. On the basis of these results, it is recommended that European quail raised for meat should not be fasted for more than 48 hs post-hatch.
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Affiliation(s)
- Flavia K Cruz
- Universidade Estadual de Maringá, Departamento de Zootecnia, Avenida Colombo, 5790, 87020-900 Maringa, PR, Brazil
| | | | - Kassiana G Andrade
- Universidade Estadual de Maringá, Departamento de Zootecnia, Avenida Colombo, 5790, 87020-900 Maringa, PR, Brazil
| | - Isabelle Naemi Kaneko
- Universidade Estadual de Maringá, Departamento de Zootecnia, Avenida Colombo, 5790, 87020-900 Maringa, PR, Brazil
| | - Lucas P Bonagurio
- Universidade Estadual de Maringá, Departamento de Zootecnia, Avenida Colombo, 5790, 87020-900 Maringa, PR, Brazil
| | - Jailton S Bezerra Júnior
- Universidade Estadual de Maringá, Departamento de Zootecnia, Avenida Colombo, 5790, 87020-900 Maringa, PR, Brazil
| | - Robson M Rossi
- Universidade Estadual de Maringá, Departamento de Estatísica, Avenida Colombo, 5790, 87020-900 Maringa, PR, Brazil
| | - Alice E Murakami
- Universidade Estadual de Maringá, Departamento de Zootecnia, Avenida Colombo, 5790, 87020-900 Maringa, PR, Brazil
| | - Tatiana C Santos
- Universidade Estadual de Maringá, Departamento de Zootecnia, Avenida Colombo, 5790, 87020-900 Maringa, PR, Brazil
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Gao M, Wang J, Lv Z. Supplementing Genistein for Breeder Hens Alters the Growth Performance and Intestinal Health of Offspring. Life (Basel) 2023; 13:1468. [PMID: 37511844 PMCID: PMC10381885 DOI: 10.3390/life13071468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/31/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Recent research revealed that dietary genistein supplementation for breeder hens can improve the immune function of offspring chicks. However, it remains unknown whether this maternal effect could improve the intestinal health of offspring. This study was conducted to explore the mechanism involved in the maternal effect of genistein on the intestinal mucosa and microbial homeostasis of chicken offspring. A total of 120 Qiling breeder hens were fed a basal diet, a 20 mg/kg genistein-supplemented diet, or a 40 mg/kg genistein-supplemented diet for 4 weeks before collecting their eggs. After hatching, 180 male offspring (60 chickens from each group) were randomly selected and divided into three groups: (1) the offspring of hens fed a basal diet (CON); (2) the offspring of hens fed a low-dose genistein-supplemented diet (LGE); (3) the offspring of hens fed a high-dose genistein-supplemented diet (HGE). At 17 d, 72 male offspring (48 chickens from CON and 24 chickens from LGE) were divided into three groups: (1) the offspring of hens fed a basal diet (CON); (2) the CON group challenged with LPS (LPS); (3) the LGE group challenged with LPS (LPS + LGE). The results showed that maternal genistein supplementation increased the birth weight and serum level of total protein (TP), followed by improved intestinal villus morphology. Continuously, the maternal effect on the body weight of chicks lasted until 21 d. Additionally, it was observed that maternal genistein supplementation exhibited protective effects against LPS-induced morphological damage and intestinal mucosal barrier dysfunction by upregulating the expression of tight junction proteins, specifically ZO-1, Claudin1, E-cadherin, and Occludin, at 21 d. Using 16S rRNA gene sequencing, we demonstrated that maternal supplementation of genistein has the potential to facilitate the maturation of newly hatched chicken offspring by enhancing the abundance of Escherichia coli. Additionally, maternal genistein supplementation can effectively reduce the abundance of Gammaproteobacteria, thus mitigating the risk of bacterial diversity impairment of LPS. In light of these findings, maternal genistein supplementation holds promise as a potential strategy for ameliorating intestinal mucosal damage and modulating the microbiome in chicken offspring.
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Affiliation(s)
- Mingkun Gao
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jiao Wang
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Zengpeng Lv
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
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7
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Ai Y, Zhu Y, Wang L, Zhang X, Zhang J, Long X, Gu Q, Han H. Dynamic Changes in the Global Transcriptome of Postnatal Skeletal Muscle in Different Sheep. Genes (Basel) 2023; 14:1298. [PMID: 37372481 DOI: 10.3390/genes14061298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/13/2023] [Accepted: 06/17/2023] [Indexed: 06/29/2023] Open
Abstract
Sheep growth performance, mainly skeletal muscle growth, provides direct economic benefits to the animal husbandry industry. However, the underlying genetic mechanisms of different breeds remain unclear. We found that the cross-sectional area (CSA) of skeletal muscle in Dorper (D) and binary cross-breeding (HD) was higher than that in Hu sheep (H) from 3 months to 12 months after birth. The transcriptomic analysis of 42 quadriceps femoris samples showed that a total of 5053 differential expression genes (DEGs) were identified. The differences in the global gene expression patterns, the dynamic transcriptome of skeletal muscle development, and the transcriptome of the transformation of fast and slow muscles were explored using weighted correlation network analysis (WGCNA) and allele-specific expression analysis. Moreover, the gene expression patterns of HD were more similar to D rather than H from 3 months to 12 months, which might be the reason for the difference in muscle growth in the three breeds. Additionally, several genes (GNB2L1, RPL15, DVL1, FBXO31, etc.) were identified as candidates related to skeletal muscle growth. These results should serve as an important resource revealing the molecular basis of muscle growth and development in sheep.
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Affiliation(s)
- Yue Ai
- Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yaning Zhu
- Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Linli Wang
- Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xiaosheng Zhang
- Tianjin Key Laboratory of Animal Molecular Breeding and Biotechnology, Tianjin 301700, China
| | - Jinlong Zhang
- Tianjin Key Laboratory of Animal Molecular Breeding and Biotechnology, Tianjin 301700, China
| | - Xianlei Long
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Qingyi Gu
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Hongbing Han
- Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
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Yin X, Fang W, Yuan M, Sun H, Wang J. Transcriptome Analysis of Leg Muscles and the Effects of ALOX5 on Proliferation and Differentiation of Myoblasts in Haiyang Yellow Chickens. Genes (Basel) 2023; 14:1213. [PMID: 37372393 DOI: 10.3390/genes14061213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
Skeletal muscle growth and development from embryo to adult consists of a series of carefully regulated changes in gene expression. This study aimed to identify candidate genes involved in Haiyang Yellow Chickens' growth and to understand the regulatory role of the key gene ALOX5 (arachidonate 5-lipoxygenase) in myoblast proliferation and differentiation. In order to search the key candidate genes in the process of muscle growth and development, RNA sequencing was used to compare the transcriptomes of chicken muscle tissues at four developmental stages and to analyze the effects of ALOX5 gene interference and overexpression on myoblast proliferation and differentiation at the cellular level. The results showed that 5743 differentially expressed genes (DEGs) (|fold change| ≥ 2; FDR ≤ 0.05) were detected by pairwise comparison in male chickens. Functional analysis showed that the DEGs were mainly involved in the processes of cell proliferation, growth, and developmental process. Many of the DEGs, such as MYOCD (Myocardin), MUSTN1 (Musculoskeletal Embryonic Nuclear Protein 1), MYOG (MYOGenin), MYOD1 (MYOGenic differentiation 1), FGF8 (fibroblast growth factor 8), FGF9 (fibroblast growth factor 9), and IGF-1 (insulin-like growth factor-1), were related to chicken growth and development. KEGG pathway (Kyoto Encyclopedia of Genes and Genomes pathway) analysis showed that the DEGs were significantly enriched in two pathways related to growth and development: ECM-receptor interaction (Extracellular Matrix) and MAPK signaling pathway (Mitogen-Activated Protein Kinase). With the extension of differentiation time, the expression of the ALOX5 gene showed an increasing trend, and it was found that interference with the ALOX5 gene could inhibit the proliferation and differentiation of myoblasts and that overexpression of the ALOX5 gene could promote the proliferation and differentiation of myoblasts. This study identified a range of genes and several pathways that may be involved in regulating early growth, and it can provide theoretical research for understanding the regulation mechanism of muscle growth and development of Haiyang Yellow Chickens.
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Affiliation(s)
- Xumei Yin
- College of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng 224000, China
| | - Wenna Fang
- College of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng 224000, China
| | - Manman Yuan
- Luohe Academy of Agricultural Sciences, Luohe 462000, China
| | - Hao Sun
- College of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng 224000, China
| | - Jinyu Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225000, China
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Muyyarikkandy MS, Schlesinger M, Ren Y, Gao M, Liefeld A, Reed S, Amalaradjou MA. In ovo probiotic supplementation promotes muscle growth and development in broiler embryos. Poult Sci 2023; 102:102744. [PMID: 37216887 DOI: 10.1016/j.psj.2023.102744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 05/24/2023] Open
Abstract
In chickens, muscle development during embryonic growth is predominantly by myofiber hyperplasia. Following hatch, muscle growth primarily occurs via hypertrophy of the existing myofibers. Since myofiber number is set at hatch, production of more muscle fibers during embryonic growth would provide a greater myofiber number at hatch and potential for posthatch muscle growth by hypertrophy. Therefore, to improve performance in broilers, this study investigated the effect of in ovo spray application of probiotics on overall morphometry and muscle development in broiler embryos. For the study, fertile Ross 308 eggs were sprayed with different probiotics; Lactobacillus paracasei DUP 13076 (LP) and L. rhamnosus NRRL B 442 (LR) prior to and during incubation. The embryos were sacrificed on d 7, 10, 14, and 18 for embryo morphometry and pectoralis major muscle (PMM) sampling. Muscle sections were stained and imaged to quantify muscle fiber density (MFD), myofiber cross-sectional area (CSA), and nuclei density. Additionally, gene expression assays were performed to elucidate the effect of probiotics on myogenic genes. In ovo probiotic supplementation was found to significantly improve embryo weight, breast weight, and leg weight (P < 0.05). Further, histological analysis of PMM revealed a significant increase in MFD and nuclei number in the probiotic-treated embryos when compared to the control (P < 0.05). In 18-day-old broiler embryos, myofibers in the treatment group had a significantly smaller CSA (LP: 95.27 ± 3.28 μm2, LR: 178.84 ± 15.1 μm2) when compared to the control (211.41 ± 15.67 μm2). This decrease in CSA was found to be associated with a concomitant increase in MFD (fibers/mm2) in the LP (13,647 ± 482.15) and LR (13,957 ± 463.13) group when compared to the control (7,680 ± 406.78). Additionally, this increase in myofibrillar hyperplasia in the treatment groups was associated with upregulation in the expression of key genes regulating muscle growth including MYF5, MYOD, MYOG, and IGF-1. In summary, in ovo spray application of probiotics promoted overall embryo growth and muscle development in broilers.
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Affiliation(s)
| | - Maya Schlesinger
- Department of Animal Science, University of Connecticut, Storrs, CT 06269, USA
| | - Yuying Ren
- Department of Animal Science, University of Connecticut, Storrs, CT 06269, USA
| | - Mairui Gao
- Department of Animal Science, University of Connecticut, Storrs, CT 06269, USA
| | - Amanda Liefeld
- Department of Animal Science, University of Connecticut, Storrs, CT 06269, USA
| | - Sarah Reed
- Department of Animal Science, University of Connecticut, Storrs, CT 06269, USA
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10
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Angove J, Willson NL, Barekatain R, Rosenzweig D, Forder R. In ovo corticosterone exposure does not influence yolk steroid hormone relative abundance or skeletal muscle development in the embryonic chicken. Poult Sci 2023; 102:102735. [PMID: 37209653 DOI: 10.1016/j.psj.2023.102735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 05/22/2023] Open
Abstract
In ovo corticosterone (CORT) exposure reportedly reduces growth and alters body composition traits in meat-type chickens. However, the mechanisms governing alterations in growth and body composition remain unclear but could involve myogenic stem cell commitment, and/or the presence of yolk steroid hormones. This study investigated whether in ovo CORT exposure influenced yolk steroid hormone content, as well as embryonic myogenic development in meat-type chickens. Fertile eggs were randomly divided at embryonic day (ED) 11 and administered either a control (CON; 100 µL of 10 mM PBS) or CORT solution (100 µL of 10 mM PBS containing 1 µg CORT) into the chorioallantoic membrane. Yolk samples were collected at ED 0 and ED 5. At ED 15 and hatch, embryos were humanely killed, and yolk and breast muscle (BM) samples were collected. The relative abundance of 15 steroid hormones, along with total lipid content was measured in yolk samples collected at ED 0, ED 5, ED 15, and ED 21. Muscle fiber number, cross-sectional area, and fascicle area occupied by muscle fibers were measured in BM samples collected at hatch. Relative expression of MyoD, MyoG, Pax7, PPARγ, and CEBP/β, and the sex steroid receptors were measured in BM samples collected at hatch. The administration of CORT had a limited effect on yolk steroid hormones. In ovo CORT significantly reduced fascicle area occupied by muscle fibers and CEBP/β expression was increased in CORT exposed birds at hatch. In addition, the quantity of yolk lipid was significantly reduced in CORT-treated birds. In conclusion, in ovo exposure to CORT does not appear to influence early muscle development through yolk steroid hormones in embryonic meat-type chickens however, the results provide a comprehensive analysis of the composition of yolk steroid hormones in ovo at different developmental time points. The findings may suggest increased mesenchymal stem cell commitment to the adipogenic lineage during differentiation and requires further investigation.
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Affiliation(s)
- J Angove
- School of Animal and Veterinary Sciences, the University of Adelaide, Roseworthy, SA, Australia
| | - N-L Willson
- School of Animal and Veterinary Sciences, the University of Adelaide, Roseworthy, SA, Australia
| | - R Barekatain
- South Australian Research and Development Institute, Roseworthy, SA, Australia
| | - D Rosenzweig
- School of Animal and Veterinary Sciences, the University of Adelaide, Roseworthy, SA, Australia
| | - R Forder
- School of Animal and Veterinary Sciences, the University of Adelaide, Roseworthy, SA, Australia.
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11
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Lu P, Morawong T, Molee A, Molee W. L-arginine alters myogenic genes expression but does not affect breast muscle characteristics by in ovo feeding technique in slow-growing chickens. Front Vet Sci 2022; 9:1030873. [PMID: 36590799 PMCID: PMC9794582 DOI: 10.3389/fvets.2022.1030873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/22/2022] [Indexed: 12/15/2022] Open
Abstract
In ovo feeding (IOF) of nutrients is a viable method for increasing muscle mass through hyperplasia and hypertrophy. The objective of this study was to evaluate the effects of IOF of L-arginine (Arg) on breast muscle weight, muscle morphology, amino acid profile, and gene expression of muscle development in slow-growing chickens. Four hundred eighty fertilized eggs were randomly divided into two groups: the first group was the non-injected control group, and the second group was the Arg group, injected with 1% Arg (0.5 mL) into the amnion on day 18 of incubation. After hatching, 160 birds from each group were randomly divided into four replicates of 40 birds each. This experiment lasted for 63 days. The results showed that IOF of Arg did not affect (P > 0.05) breast muscle weight, muscle morphology, and mRNA expression of mammalian target of rapamycin (mTOR) signaling pathway in slow-growing chickens. However, the amino acid profile of breast muscle was altered (P < 0.05) on the day of hatching (DOH), day 21 (D21), and day 42 (D42) post-hatch, respectively. Myogenic factor 5 (Myf5) mRNA expression was upregulated (P < 0.05) on D21 post-hatch. Myogenic regulator 4 (MRF4) mRNA expression was increased (P < 0.05) on DOH. And myogenin (MyoG) was increased (P < 0.05) on DOH and D21 post-hatch, in the Arg group compared to the control group. Overall, IOF of 1% Arg improved the expression of myogenic genes but did not influence muscle morphology and BMW. These results indicate that in ovo Arg dosage (0.5 mL/egg) has no adverse effect on breast muscle development of slow-growing chickens.
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12
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Pan Z, Yang C, Zhao R, Jiang X, Yu C, Li Z. Characterization of lncRNA/circRNA-miRNA-mRNA network to reveal potential functional ceRNAs in the skeletal muscle of chicken. Front Physiol 2022; 13:969854. [PMID: 36246144 PMCID: PMC9558166 DOI: 10.3389/fphys.2022.969854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Skeletal muscle, comprising approximately 40% of body mass, is a highly complex and heterogeneous tissue serving a multitude of functions in the organism. Non-coding RNAs (ncRNAs) are known to participate in skeletal muscle development as critical regulators. However, the regulatory mechanisms of ncRNAs on chicken muscle traits are not well understood. In the present study, we collected the leg muscle from male embryos of Tibetan chicken at embryonic (E) 10 and E18 for RNA sequencing. A total of 6,583 differentially expressed mRNAs (DEMs) including 3,055 down-regulated and 3,528 up-regulated were identified in E18. We identified 695 differentially expressed lncRNAs (DELs) (187 down-regulated and 508 up-regulated) and 1,906 differentially expressed circRNAs (DECs) (1,224 down-regulated and 682 up-regulated) in E18. Among the 130 differentially expressed miRNAs (DEMIs), 59 were up-regulated and 71 were down-regulated in E18. Numerous DEMs and target genes for miRNAs/lncRNAs were significantly enriched in the muscle system process and cell cycle. We constructed a miRNA-gene-pathway network by considering target relationships between genes related to skeletal muscle development and miRNAs. A competing endogenous RNA (ceRNA) network was also constructed by integrating competing relationships between DEMs, DELs, and DECs. Several DELs and DECs were predicted to regulate the ADRA1B, ATP2A2, ATP2B1, CACNA1S, CACNB4, MYLK2, and ROCK2 genes. We discovered the crosstalk between the ncRNAs and their competing mRNAs, which provides insights into ceRNA function and mechanisms in the skeletal muscle development of chicken.
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Affiliation(s)
- Zegun Pan
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Ministry of EducationSouthwest Minzu University, Chengdu, Sichuan, China
| | - Chaowu Yang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, Sichuan, China
| | - Ruipeng Zhao
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Ministry of EducationSouthwest Minzu University, Chengdu, Sichuan, China
| | - Xiaosong Jiang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, Sichuan, China
| | - Chunli Yu
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, Sichuan, China
| | - Zhixiong Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Ministry of EducationSouthwest Minzu University, Chengdu, Sichuan, China
- *Correspondence: Zhixiong Li,
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13
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Temporal Expression of Myogenic Regulatory Genes in Different Chicken Breeds during Embryonic Development. Int J Mol Sci 2022; 23:ijms231710115. [PMID: 36077516 PMCID: PMC9456251 DOI: 10.3390/ijms231710115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
The basic units of skeletal muscle in all vertebrates are multinucleate myofibers, which are formed from the fusion of mononuclear myoblasts during the embryonic period. In order to understand the regulation of embryonic muscle development, we selected four chicken breeds, namely, Cornish (CN), White Plymouth Rock (WPR), White Leghorn (WL), and Beijing-You Chicken (BYC), for evaluation of their temporal expression patterns of known key regulatory genes (Myomaker, MYOD, and MSTN) during pectoral muscle (PM) and thigh muscle (TM) development. The highest expression level of Myomaker occurred from embryonic days E13 to E15 for all breeds, indicating that it was the crucial stage of myoblast fusion. Interestingly, the fast-growing CN showed the highest gene expression level of Myomaker during the crucial stage. The MYOD gene expression at D1 was much higher, implying that MYOD might have an important role after hatching. Histomorphology of PM and TM suggested that the myofibers was largely complete at E17, which was speculated to have occurred because of the expression increase in MSTN and the expression decrease in Myomaker. Our research contributes to lay a foundation for the study of myofiber development during the embryonic period in different chicken breeds.
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14
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Li F, Yang C, Xie Y, Gao X, Zhang Y, Ning H, Liu G, Chen Z, Shan A. Maternal nutrition altered embryonic <i>MYOD1</i>, <i>MYF5</i> and <i>MYF6</i> gene expression in genetically fat and lean lines of chickens. Anim Biosci 2022; 35:1223-1234. [PMID: 35240030 PMCID: PMC9262732 DOI: 10.5713/ab.21.0521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 01/29/2022] [Indexed: 11/27/2022] Open
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15
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Yin X, Wu Y, Zhang S, Zhang T, Zhang G, Wang J. Transcriptomic profile of leg muscle during early growth and development in Haiyang yellow chicken. Arch Anim Breed 2021; 64:405-416. [PMID: 34584942 PMCID: PMC8461557 DOI: 10.5194/aab-64-405-2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 05/25/2021] [Indexed: 11/30/2022] Open
Abstract
Skeletal muscle growth and development from embryo to
adult consists of a series of carefully regulated changes in gene
expression. This study aimed to identify candidate genes involved in chicken
growth and development and to investigate the potential regulatory
mechanisms of early growth in Haiyang yellow chicken. RNA sequencing was
used to compare the transcriptomes of chicken muscle tissues at four
developmental stages. In total, 6150 differentially expressed genes (DEGs)
(|fold change| ≥ 2; false discovery rate (FDR) ≤ 0.05) were detected by
pairwise comparison in female chickens. Functional analysis showed that the
DEGs were mainly involved in the processes of muscle growth and development
and cell differentiation. Many of the DEGs, such as MSTN,
MYOD1, MYF6, MYF5, and IGF1, were
related to chicken growth and development. The Kyoto
Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that
the DEGs were significantly enriched in four pathways related to growth and
development: extracellular matrix
(ECM)–receptor interaction, focal adhesion, tight junction, and
insulin signalling pathways. A total of 42 DEGs assigned to these pathways
are potential candidate genes for inducing the differences in growth among
the four development stages, such as MYH1A, EGF, MYLK2,
MYLK4, and LAMB3. This study identified a
range of genes and several pathways that may be involved in regulating early
growth.
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Affiliation(s)
- Xuemei Yin
- School of Marine and Bioengineering, YanCheng Institute of Technology, Yancheng, China
| | - Yulin Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China
| | - Shanshan Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China
| | - Tao Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China
| | - Genxi Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China
| | - Jinyu Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China
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16
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Ran J, Li J, Yin L, Zhang D, Yu C, Du H, Jiang X, Yang C, Liu Y. Comparative Analysis of Skeletal Muscle DNA Methylation and Transcriptome of the Chicken Embryo at Different Developmental Stages. Front Physiol 2021; 12:697121. [PMID: 34276416 PMCID: PMC8283280 DOI: 10.3389/fphys.2021.697121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 05/31/2021] [Indexed: 11/26/2022] Open
Abstract
DNA methylation is a key epigenetic mechanism involved in embryonic muscle development and plays an important role in early muscle development. In this study, we sought to investigate the effects of genome-wide DNA methylation by combining the expression profiles of the chicken embryonic muscle. Genome-wide DNA methylation maps and transcriptomes of muscle tissues collected from different embryonic development points (E7, E11, E17, and D1) were used for whole-genome bisulfite sequencing (WGBS) and RNA sequencing, respectively. We found that the differentially methylated genes (DMGs) were significantly associated with muscle organ development, regulation of skeletal muscle satellite cell proliferation, and actin filament depolymerization. Furthermore, genes TBX1, MEF2D, SPEG, CFL2, and TWF2 were strongly correlated with the methylation-caused expression switch. Therefore, we chose the CFL2 gene to explore its function in skeletal muscle satellite cells, and the in vitro experiments showed that CFL2 acts as a negative regulator of chicken skeletal muscle satellite cell proliferation and can induce cell apoptosis. These results provide valuable data for future genome and epigenome studies of chicken skeletal muscle and may help reveal the molecular mechanisms of potential economic traits.
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Affiliation(s)
- Jinshan Ran
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Jingjing Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Lingqian Yin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Donghao Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Chunlin Yu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, China
| | - Huarui Du
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, China
| | - Xiaosong Jiang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, China
| | - Chaowu Yang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, China
| | - Yiping Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
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17
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Stover KK, Sleboda DA, Brainerd EL, Roberts TJ. Gastrocnemius Muscle Structural and Functional Changes Associated with Domestication in the Turkey. Animals (Basel) 2021; 11:1850. [PMID: 34206329 PMCID: PMC8300382 DOI: 10.3390/ani11071850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 11/30/2022] Open
Abstract
Selection for increased muscle mass in domestic turkeys has resulted in muscles twice the size of those found in wild turkeys. This study characterizes muscle structural changes as well as functional differences in muscle performance associated with selection for increased muscle mass. We compared peak isometric force production, whole muscle and individual fiber cross-sectional area (CSA), connective tissue collagen concentration and structure of the lateral gastrocnemius (LG) muscle in wild and adult domestic turkeys. We also explored changes with age between juvenile and adult domestic turkeys. We found that the domestic turkey's LG muscle can produce the same force per cross-sectional area as a wild turkey; however, due to scaling, domestic adults produce less force per unit body mass. Domestic turkey muscle fibers were slightly smaller in CSA (3802 ± 2223 μm2) than those of the wild turkey (4014 ± 1831 μm2, p = 0.013), indicating that the absolutely larger domestic turkey muscles are a result of an increased number of smaller fibers. Collagen concentration in domestic turkey muscle (4.19 ± 1.58 μg hydroxyproline/mg muscle) was significantly lower than in the wild turkeys (6.23 ± 0.63 μg/mg, p = 0.0275), with visible differences in endomysium texture, observed via scanning electron microscopy. Selection for increased muscle mass has altered the structure of the LG muscle; however, scaling likely contributes more to hind limb functional differences observed in the domestic turkey.
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Affiliation(s)
- Kristin K. Stover
- The Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA; (D.A.S.); (E.L.B.); (T.J.R.)
- Department of Biomedical Science, West Virginia School of Osteopathic Medicine, Lewisburg, WV 24901, USA
| | - David A. Sleboda
- The Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA; (D.A.S.); (E.L.B.); (T.J.R.)
| | - Elizabeth L. Brainerd
- The Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA; (D.A.S.); (E.L.B.); (T.J.R.)
| | - Thomas J. Roberts
- The Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA; (D.A.S.); (E.L.B.); (T.J.R.)
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18
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Key Genes Regulating Skeletal Muscle Development and Growth in Farm Animals. Animals (Basel) 2021; 11:ani11030835. [PMID: 33809500 PMCID: PMC7999090 DOI: 10.3390/ani11030835] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Skeletal muscle mass is an important economic trait, and muscle development and growth is a crucial factor to supply enough meat for human consumption. Thus, understanding (candidate) genes regulating skeletal muscle development is crucial for understanding molecular genetic regulation of muscle growth and can be benefit the meat industry toward the goal of increasing meat yields. During the past years, significant progress has been made for understanding these mechanisms, and thus, we decided to write a comprehensive review covering regulators and (candidate) genes crucial for muscle development and growth in farm animals. Detection of these genes and factors increases our understanding of muscle growth and development and is a great help for breeders to satisfy demands for meat production on a global scale. Abstract Farm-animal species play crucial roles in satisfying demands for meat on a global scale, and they are genetically being developed to enhance the efficiency of meat production. In particular, one of the important breeders’ aims is to increase skeletal muscle growth in farm animals. The enhancement of muscle development and growth is crucial to meet consumers’ demands regarding meat quality. Fetal skeletal muscle development involves myogenesis (with myoblast proliferation, differentiation, and fusion), fibrogenesis, and adipogenesis. Typically, myogenesis is regulated by a convoluted network of intrinsic and extrinsic factors monitored by myogenic regulatory factor genes in two or three phases, as well as genes that code for kinases. Marker-assisted selection relies on candidate genes related positively or negatively to muscle development and can be a strong supplement to classical selection strategies in farm animals. This comprehensive review covers important (candidate) genes that regulate muscle development and growth in farm animals (cattle, sheep, chicken, and pig). The identification of these genes is an important step toward the goal of increasing meat yields and improves meat quality.
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19
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Hu Z, Cao J, Zhang J, Ge L, Zhang H, Liu X. Skeletal Muscle Transcriptome Analysis of Hanzhong Ma Duck at Different Growth Stages Using RNA-Seq. Biomolecules 2021; 11:315. [PMID: 33669581 PMCID: PMC7927120 DOI: 10.3390/biom11020315] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 01/02/2023] Open
Abstract
As one of the most important poultry worldwide, ducks (Anas platyrhynchos) are raised mainly for meat and egg products, and muscle development in ducks is important for meat production. Therefore, an investigation of gene expression in duck skeletal muscle would significantly contribute to our understanding of muscle development. In this study, twenty-four cDNA libraries were constructed from breast and leg muscles of Hanzhong Ma ducks at day 17, 21, 27 of the embryo and postnatal at 6-month-old. High-throughput sequencing and bioinformatics were used to determine the abundances and characteristics of transcripts. A total of 632,172,628 (average 52,681,052) and 637,213,938 (average 53,101,162) reads were obtained from the sequencing data of breast and leg muscles, respectively. Over 71.63% and 77.36% of the reads could be mapped to the Anas platyrhynchos genome. In the skeletal muscle of Hanzhong duck, intron variant (INTRON), synonymous variant (SYNONYMOUS_CODING), and prime 3' UTR variant (UTR_3_PRIME) were the main single nucleotide polymorphisms (SNP) annotation information, and "INTRON", "UTR_3_PRIME", and downstream-gene variant (DOWNSTREAM) were the main insertion-deletion (InDel) annotation information. The predicted number of alternative splicing (AS) in all samples were mainly alternative 5' first exon (transcription start site)-the first exon splicing (TSS) and alternative 3' last exon (transcription terminal site)-the last exon splicing (TTS). Besides, there were 292 to 2801 annotated differentially expressed genes (DEGs) in breast muscle and 304 to 1950 annotated DEGs in leg muscle from different databases. It is worth noting that 75 DEGs in breast muscle and 49 DEGs in leg muscle were co-expressed at all developmental points of comparison, respectively. The RNA-Seq data were confirmed to be reliable by qPCR. The identified DEGs, such as CREBL2, RHEB, GDF6, SHISA2, MYLK2, ACTN3, RYR3, and STMN1, were specially highlighted, indicating their strong associations with muscle development in the Hanzhong Ma duck. KEGG pathway analysis suggested that regulation of actin cytoskeleton, oxidative phosphorylation, and focal adhesion were involved in the development of skeletal muscle. The findings from this study can contribute to future investigations of the growth and development mechanism in duck skeletal muscle.
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Affiliation(s)
| | | | | | | | | | - Xiaolin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China; (Z.H.); (J.C.); (J.Z.); (L.G.); (H.Z.)
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20
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Sahebi-Ala F, Hassanabadi A, Golian A. Effect of replacement different methionine levels and sources with betaine on blood metabolites, breast muscle morphology and immune response in heat-stressed broiler chickens. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2020.1868358] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Fatemeh Sahebi-Ala
- Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmad Hassanabadi
- Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Abolghasem Golian
- Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, Iran
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21
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Oviedo-Rondón EO, Velleman SG, Wineland MJ. The Role of Incubation Conditions in the Onset of Avian Myopathies. Front Physiol 2020; 11:545045. [PMID: 33041856 PMCID: PMC7530269 DOI: 10.3389/fphys.2020.545045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 08/19/2020] [Indexed: 12/18/2022] Open
Abstract
White striping, wooden breast, and spaghetti muscle have become common myopathies in broilers worldwide. Several research reports have indicated that the origin of these lesions is metabolic disorders. These failures in normal metabolism can start very early in life, and suboptimal incubation conditions may trigger some of the key alterations on muscle metabolism. Incubation conditions affect the development of muscle and can be associated with the onset of myopathies. A series of experiments conducted with broilers, turkeys, and ducks are discussed to overview primary information showing the main changes in breast muscle histomorphology, metabolism, and physiology caused by suboptimal incubation conditions. These modifications may be associated with current myopathies. Those effects of incubation on myopathy occurrence and severity have also been confirmed at slaughter age. The impact of egg storage, temperature profiles, oxygen concentrations, and time of hatch have been evaluated. The effects have been observed in diverse species, genetic lines, and both genders. Histological and muscle evaluations have detected that myopathies could be induced by extended hypoxia and high temperatures, and those effects depend on the genetic line. Thus, these modifications in muscle metabolic responses may make hatchlings more susceptible to develop myopathies during grow out due to thermal stress, high-density diets, and fast growth rates.
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Affiliation(s)
| | - Sandra G. Velleman
- Department of Animal Sciences, The Ohio State University, Columbus, OH, United States
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22
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Su S, Wang Y, Chen C, Suh M, Azain M, Kim WK. Fatty Acid Composition and Regulatory Gene Expression in Late-Term Embryos of ACRB and COBB Broilers. Front Vet Sci 2020; 7:317. [PMID: 32671107 PMCID: PMC7330006 DOI: 10.3389/fvets.2020.00317] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/07/2020] [Indexed: 12/20/2022] Open
Abstract
Cobb broilers (COBB) have been heavily selected for their production performance in the past several decades, while the Athens Canadian Random Bred (ACRB) chickens, a meat-type breed, have been kept as a non-selected control strain. The purpose of this study was to compare these two lines of chickens at late embryonic development and identify the molecular markers and fatty acid profiles underlining their differences in growth performance due to selection. Fertilized eggs of the ACRB (n = 6) and COBB (n = 6) were used at 14 and 18 embryonic days. Genes involved in lipogenesis and myogenesis were measured using quantitative real-time reverse transcroption-polymerase chain reaction (RT-PCR), and fatty acid (FA) compositions of egg yolk, muscle, and liver were measured using gas chromatography. COBB had higher egg weight, embryo weight, and breast and fat ratio. The gene expression in the liver showed an interaction between age and breed on FASN expression, with the highest level in COBB at E18. ACRB had higher ApoB and MTTP expression, but lower SREBP-1 expression compared to COBB. No difference was found in myogenesis gene expression in the muscle between two breeds. For the FA composition, muscle was largely affected by both breed and age. Yolk and liver were affected mainly by breed and age, respectively. Constant interaction effects in docosahexaenoic acid (DHA), indicating the highest level in all the tested tissues of ACRB at E14 and the constant main effects with higher myristic, palmitic, and gondoic, but lower linolenic acid in the liver and yolk of COBB compared to the levels in those of ACRB. Finally, fat accumulation in the liver had no obvious difference between the breeds but was higher when embryo was older. In conclusion, broiler breed affects egg, embryo, and tissue weight, as well as FA composition in initial egg yolk and throughout the embryonic development. The highest docosahexaenoic percentage was observed in ACRB, indicating that genetic selection may result in fatty acid profile changes such as lower DHA content in chicken tissues and eggs.
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Affiliation(s)
- Shengchen Su
- Department of Poultry Science, University of Georgia, Athens, GA, United States
| | - Yidi Wang
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada.,Division of Neurodegenerative Disorders & Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
| | - Chongxiao Chen
- Department of Poultry Science, University of Georgia, Athens, GA, United States
| | - Miyoung Suh
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada.,Division of Neurodegenerative Disorders & Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
| | - Michael Azain
- Department of Animal and Dairy Science, University of Georgia, Athens, GA, United States
| | - Woo Kyun Kim
- Department of Poultry Science, University of Georgia, Athens, GA, United States
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Abstract
Modern broilers show dramatic growth over a short interval and contribute directly to the success of the poultry meat industry. The growth performance of commercial broilers is a result of genetic selection for "performance traits", such as body size, meat yield, and feed conversion rate. However, due to the rapid growth rate of modern commercial broilers, several growth-related conditions have arisen, increasing economic losses and consumer concerns. Among the most economically consequential is the muscle disorder called wooden breast. Together with associated myopathies such as white striping and spaghetti meat, wooden breast is causing losses of $200 million a year in the U.S. alone and occurs worldwide. No causative factors are known for wooden breast to date. Wooden breast can affect over 80% of broilers in a flock, yet no methods of amelioration are currently available. Overall, the evidence suggests that wooden breast is a genetic, age-dependent condition associated with fast growth rate. The primary features of wooden breast are muscle degeneration and fibrosis, high levels of oxidative stress, hypoxia, and altered energy metabolism. Recent work has also implicated reduced pectoral vessel density in the pathogenesis of wooden breast. This review examines the history of myopathies in commercial broilers and the relationship of myopathies to metabolism and oxidative performance. This review summarizes the foundational knowledge of wooden breast and provides a platform for further investigation of wooden breast.
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Effects of In Ovo Supplementation with Nanonutrition (L-Arginine Conjugated with Ag NPs) on Muscle Growth, Immune Response and Heat Shock Proteins at Different Chicken Embryonic Development Stages. Animals (Basel) 2020; 10:ani10040564. [PMID: 32230934 PMCID: PMC7222345 DOI: 10.3390/ani10040564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/17/2020] [Accepted: 03/24/2020] [Indexed: 11/17/2022] Open
Abstract
Simple Summary In this study, we have analyzed the effects of in ovo supplementation of inorganic and organic synthesized silver nanoparticles (Ag NPs) conjugated with L-arginine (L-Arg) that were injected in chicken embryo at three different embryonic development stages (8th d, 14th d and 18th d). We investigated the effects of both conjugated Ag NPs on the survival, hatchability and body weight on hatching day (1 d old chicks). The expression of muscle growth related proteins, mainly myoblast determination protein (myoD), myogenin and heat-shock proteins (HSPs) were analyzed in pectoral muscles. The serum level of immunoglobulin M (IgM), serum glutamate oxaloacetate transaminase (SGOT) and serum glutamate pyruvate transaminase (SGPT) were also examined. Our study shows that 14th day of injection of both types of conjugated Ag NPs promoted survival rate and hatching rate at 8 d and 18 d from injection. The immunoglobulin (IgM) levels in serum and the expression of muscle growth related proteins (myoD and myogenin) were dramatically improved; in addition, HSP-60 and HSP-70 expression were declined at 14th d of injection. The serum levels of SGOT and SGPT were decreased at 14d injection when compared to 8 d and 18 d injection. Hence, the 14th day would be suitable day for injection of L-Arg with Ag NPs to promote the survival rate, hatching rate, immune system and muscle growth. Our results illustrated that plant mediated synthesis of Ag NPs at 1000 μg and chemically synthesized Ag NPs at 100 μg concentration would be a better choice to make nanonutrition with L-Arg (100 μg) to carry the nutrients without any toxicity at 14 d injection. Abstract The aim of the study was to analyze the in ovo injection of inorganic and organic synthesized silver nanoparticles (Ag NPs) using Brassica oleracea L. var. capitate F. rubra (BOL) conjugation with L-Arginine (L-Arg) on the immune, muscle growth, survivability and hatchability of broiler chickens. The conjugation of L-Arg (100 μg) with 1000 µg of Ag NPs synthesized by (BOL)-extract and L-Arg (100 μg) conjugated with 100 µg of Ag NPs inorganic synthesized were injected into fertile eggs at 8 d, 14 d and 18 d of incubation. Survival and hatching rate were significantly improved in the dose of L-Arg (100 μg) with 1000 µg (BOL-Ag NPs) and L-Arg (100 μg) with 100 µg (C-Ag NPs) on 14 d injection whereas it was decreased on 8 d or 18 d injection. Moreover, the protein expression of muscle development markers such as myogenin and myoD were significantly uprelated in 14 d of incubation whereas the heat shock proteins (HSPs), such as HSP-60 and HSP-70, were significantly upregulated in 18 d incubation. In addition, the liver function marker of serum glutamate oxaloacetate transaminase (SGOT) and serum glutamate pyruvate transaminase (SGPT) were significantly decreased and the immunoglobulin (IgM) levels were increased in a 14 d incubation period in serum at the same concentration.
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Exogenous Expression of an Alternative Splicing Variant of Myostatin Prompts Leg Muscle Fiber Hyperplasia in Japanese Quail. Int J Mol Sci 2019; 20:ijms20184617. [PMID: 31540432 PMCID: PMC6770055 DOI: 10.3390/ijms20184617] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/04/2019] [Accepted: 09/17/2019] [Indexed: 12/03/2022] Open
Abstract
Myostatin (MSTN) negatively regulates muscle growth and development through inhibiting myoblast proliferation and differentiation. Five alternative splicing isoforms of MSTN (MSTN-A to MSTN-E) have been discovered in domestic avian species. MSTN-A has high expression in skeletal muscle and encodes the full-length peptide with anti-myogenic activity. Another isoform, MSTN-B, is also highly expressed in skeletal muscle and encodes a truncated peptide that has pro-myogenic capabilities in vitro, which include promoting the proliferation and differentiation of quail muscle precursor cells. The objective of this study was to investigate overexpression of MSTN-B in vivo by using two independent lines of transgenic Japanese quail with expression directed in the skeletal muscle. Unexpectedly, the chicken skeletal muscle alpha actin 1 (cACTA1) promoter resulted in restricted exogenous MSTN-B protein expression to certain skeletal muscles, such as the gastrocnemius and tibialis anterior, but not the pectoralis major muscle. Gastrocnemius weight as a percentage of body weight in transgenic quail was increased compared to non-transgenic quail at posthatch day 21 (D21) and posthatch D42. An increase in the size of the gastrocnemius in transgenic quail was attributed to an increase in fiber number but not fiber cross-sectional area (CSA). During embryonic development, paired box 7 (PAX7) expression was prolonged in the transgenic embryos, but other myogenic regulatory factors (MRFs) were unchanged after MSTN-B overexpression. Taken together, these data provide novel insights into the regulation of skeletal muscle development by alternative splicing mechanisms in avians.
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Gao J, Nie W, Xing K, Guo Y. Comparative Study of Different Maternal Zinc Resource Supplementation on Performance and Breast Muscle Development of their Offspring. Biol Trace Elem Res 2019; 190:197-207. [PMID: 30269197 DOI: 10.1007/s12011-018-1513-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 09/05/2018] [Indexed: 10/28/2022]
Abstract
Maternal zinc supplementation has a pivotal role in enhancing breast muscle development of the offspring. What is poorly defined is the impact of supplemental zinc from different sources on the offspring. Broiler breeders at 24-week-old were randomly divided into three treatments with six replicates of 40 hens each and respectively fed for 8 weeks with supplemental 0-(group Zn/C), 100 mg/kg organic-(group Zn/O), and 100 mg/kg inorganic-(group Zn/I) zinc. The male offspring from each nutritional treatment were allocated into eight cages of 14 birds each, and a commercial diet supplemented with zinc from ZnSO4 at 20 mg/kg was fed to the offsprings. Results showed that eggs from Zn/O group had the highest zinc deposition (P < 0.05). Furthermore, maternal zinc supplementation promoted breast muscle yield; increased serum insulin and IGF-I concentration; upregulated AKT, mTOR, and P70S6K mRNA levels; and improved the phosphorylation of AKT at Serine 473 residue, mTOR at Serine 2448 residue, and FOXO at Serine 256 residue in the breast muscles of the offspring. In contrast, hens' diet supplemented with zinc could result in downregulation of atrogin-1 and MuRF1 mRNA levels in the breast muscle of the offspring. Additionally, no significant effect on breast muscle development post-hatch was observed between organic and inorganic zinc supplementation. In conclusion, maternal organic zinc supplementation improved zinc deposition in egg; however, no significant difference was detected in breast muscle development of the offspring of broiler breeder between organic and inorganic zinc supplementation.
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Affiliation(s)
- Jing Gao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, 100193, Beijing, China
| | - Wei Nie
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, 100193, Beijing, China.
| | - Kun Xing
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, 100193, Beijing, China
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, 100193, Beijing, China
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30
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Gao J, Nie W, Wang F, Guo Y. Maternal Selenium Supplementation Enhanced Skeletal Muscle Development Through Increasing Protein Synthesis and SelW mRNA Levels of their Offspring. Biol Trace Elem Res 2018. [PMID: 29524195 DOI: 10.1007/s12011-018-1288-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The present study aimed to investigate the influence of maternal selenium supplementation on the skeletal muscle development of the offspring. A total of 720 Ross 308 broiler breeders at 24-week-old were allocated into 3 treatments with 6 replicates of 40 hens each and fed with 0 mg/kg-(group Se/C), 0.5 mg/kg organic-(group Se/O), and 0.5 mg/kg inorganic-(group Se/I) selenium, respectively for 8 weeks. The male offspring from each nutritional treatment were divided and housed into 8 cages of 12 birds each and fed with a commercial diet supplemented with selenium from Na2SeO3 at 0.15 mg/kg. Results showed that Se/O group had the highest selenium deposition (P < 0.05) in the egg yolk and albumen. Furthermore, maternal selenium supplementation promoted breast muscle yield; increased serum insulin and IGF-I concentration; upregulated AKT, mammalian target of rapamycin (mTOR), P70S6K, Myf5, MyoD, MyoG, and SelW mRNA levels; and improved the phosphorylation of AKT at Serine 473 residue, mTOR at Serine 2448 residue, and FOXO at Serine 256 residue in skeletal muscles of the offspring. In contrast, the hens' diet supplemented with selenium could result in reduction of uric acid level in serum and downregulation of Atrogin-1 and MuRF1 mRNA levels in the skeletal muscle of the offspring. Additionally, no significant effect on the skeletal muscle development post-hatch was observed between organic and inorganic selenium supplementation. In conclusion, maternal organic selenium supplementation improved selenium deposition in egg; however, no significant effect has been detected on the breast muscle development of the offspring of broiler breeder compared with inorganic selenium supplementation.
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Affiliation(s)
- Jing Gao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Wei Nie
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China.
| | - Fenglai Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
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31
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Retes PL, Clemente AHS, Neves DG, Espósito M, Makiyama L, Alvarenga RR, Pereira LJ, Zangeronimo MG. In ovo
feeding of carbohydrates for broilers-a systematic review. J Anim Physiol Anim Nutr (Berl) 2017; 102:361-369. [DOI: 10.1111/jpn.12807] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 07/31/2017] [Indexed: 01/15/2023]
Affiliation(s)
- P. L. Retes
- Veterinary Medicine Department; Federal University of Lavras; Lavras Minas Gerais Brazil
| | - A. H. S. Clemente
- Animal Science Department; Federal University of Lavras; Lavras Minas Gerais Brazil
| | - D. G. Neves
- Animal Science Department; Federal University of Lavras; Lavras Minas Gerais Brazil
| | - M. Espósito
- Animal Science Department; Federal University of Lavras; Lavras Minas Gerais Brazil
| | - L. Makiyama
- Animal Science Department; Federal University of Lavras; Lavras Minas Gerais Brazil
| | - R. R. Alvarenga
- Animal Science Department; Federal University of Lavras; Lavras Minas Gerais Brazil
| | - L. J. Pereira
- Health Science Department; Federal University of Lavras; Lavras Minas Gerais Brazil
| | - M. G. Zangeronimo
- Veterinary Medicine Department; Federal University of Lavras; Lavras Minas Gerais Brazil
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Liu R, Wang H, Liu J, Wang J, Zheng M, Tan X, Xing S, Cui H, Li Q, Zhao G, Wen J. Uncovering the embryonic development-related proteome and metabolome signatures in breast muscle and intramuscular fat of fast-and slow-growing chickens. BMC Genomics 2017; 18:816. [PMID: 29061108 PMCID: PMC5653991 DOI: 10.1186/s12864-017-4150-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 10/02/2017] [Indexed: 11/23/2022] Open
Abstract
Background Skeletal muscle development is closely linked to meat production and its quality. This study is the first to quantify the proteomes and metabolomes of breast muscle in two distinct chicken breeds at embryonic day 12 (ED 12), ED 17, post-hatch D 1 and D 14 using mass spectrometry-based approaches. Results Results found that intramuscular fat (IMF) accumulation increased from ED 17 to D 1 and that was exactly the opposite of when most obvious growth of muscle occurred (ED 12 - ED 17 and D 1 - D 14). For slow-growing Beijing-You chickens, Ingenuity Pathway Analysis of 77–99 differential abundance (DA) proteins and 63–72 metabolites, indicated significant enrichment of molecules and pathways related to protein processing and PPAR signaling. For fast-growing Cobb chickens, analysis of 68–95 DA proteins and 56–59 metabolites demonstrated that molecules and pathways related to ATP production were significantly enriched after ED12. For IMF, several rate-limiting enzymes for beta-oxidation of fatty acid (ACADL, ACAD9, HADHA and HADHB) were identified as candidate biomarkers for IMF deposition in both breeds. Conclusions This study found that ED 17 - D 1 was the earliest period for IMF accumulation. Pathways related to protein processing and PPAR signaling were enriched to support high capacity of embryonic IMF accumulation in Beijing-You. Pathways related to ATP production were enriched to support the fast muscle growth in Cobb. The beta-oxidation of fatty acid is identified as the key pathway regulating chicken IMF deposition at early stages. Electronic supplementary material The online version of this article (10.1186/s12864-017-4150-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ranran Liu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Hongyang Wang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Jie Liu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Jie Wang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Maiqing Zheng
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Xiaodong Tan
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Siyuan Xing
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Huanxian Cui
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Qinghe Li
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China.,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China
| | - Guiping Zhao
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China. .,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China.
| | - Jie Wen
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan W Rd, Beijing, 100193, People's Republic of China. .,State Key Laboratory of Animal Nutrition, Beijing, People's Republic of China.
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Saneyasu T, Tsuchihashi T, Kitashiro A, Tsuchii N, Kimura S, Honda K, Kamisoyama H. The IGF-1/Akt/S6 pathway and expressions of glycolytic myosin heavy chain isoforms are upregulated in chicken skeletal muscle during the first week after hatching. Anim Sci J 2017; 88:1779-1787. [PMID: 28594135 DOI: 10.1111/asj.12847] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 04/21/2017] [Indexed: 02/05/2023]
Abstract
Skeletal muscle mass is an important trait in the animal industry. We previously reported an age-dependent downregulation of the insulin-like growth factor 1 (IGF-1)/Akt/S6 pathway, major protein synthesis pathway, in chicken breast muscle after 1 week of age, despite a continuous increase of breast muscle weight. Myosin heavy chain (HC), a major protein in muscle fiber, has several isoforms depending on chicken skeletal muscle types. HC I (fast-twitch glycolytic type) is known to be expressed in adult chicken breast muscle. However, little is known about the changes in the expression levels of protein synthesis-related factors and HC isoforms in perihatching chicken muscle. In the present study, protein synthesis-related factors, such as IGF-1 messenger RNA (mRNA) levels, phosphorylation of Akt, and phosphorylated S6 content, increased in an age-dependent manner after post-hatch day (D) 0. The mRNA levels of HC I, III and V (fast-twitch glycolytic type) dramatically increased after D0. The increase ratio of breast muscle weight was approximately 1100% from D0 to D7. To our knowledge, these findings provide the first evidence that upregulation of protein synthesis pathway and transcription of fast twitch glycolytic HC isoforms play critical roles in the increase of chicken breast muscle weight during the first week after hatching.
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Affiliation(s)
- Takaoki Saneyasu
- Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | | | - Ayana Kitashiro
- Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Nami Tsuchii
- Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Sayaka Kimura
- Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Kazuhisa Honda
- Graduate School of Agricultural Science, Kobe University, Kobe, Japan
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Jia X, Ouyang H, Abdalla BA, Xu H, Nie Q, Zhang X. miR-16 controls myoblast proliferation and apoptosis through directly suppressing Bcl2 and FOXO1 activities. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2017; 1860:674-684. [PMID: 28258011 DOI: 10.1016/j.bbagrm.2017.02.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 02/25/2017] [Accepted: 02/27/2017] [Indexed: 12/18/2022]
Abstract
Myogenesis mainly involves several steps including myoblast proliferation, differentiation, apoptosis and fusion. Except for muscle specific regulators, few miRNAs were proved to coordinate this complex process. Here, we reported that miR-16 inhibited myoblast proliferation and promoted myoblast apoptosis by directly targeting Bcl2 and FOXO1. The expression level of miR-16 was significantly decreased in the hypertrophic pectoral muscle compared to the normal pectoral muscle in chicken. In vitro, elevating miR-16 significantly inhibited myoblast proliferation and promoted myoblast apoptosis, resulting in about 11.2% cells arrested in G1 phase and 12.3% apoptotic cells in the early stage. Bioinformatic and biochemical analyses revealed Bcl2 and FOXO1 as direct targets of miR-16. Consist to the effect of miR-16 on myogenesis, specific inhibition of Bcl2 or FOXO1 significantly suppressed myoblast proliferation and induced myoblast apoptosis, indicating that both Bcl2 and FOXO1 contributed to miR-16 regulatory function in myogenesis. Interestingly, FOXO1, as the core target, mediated multiple growth-related pathways induced by miR-16 such as PI3K-AKT-MAPK and PI3K-AKT-mTOR. Chromatin immunoprecipitation coupled with high-throughput sequencing (ChIP-seq) revealed that 234 annotated genes bound by FOXO1 in the early-differentiated myoblasts, which were significantly enriched in myogenic proliferation, death and hypotrophy. Altogether, we proposed that miR-16 acted as a coordinated mediator to suppress myogenesis in avian through the control of myoblast proliferation and apoptosis. These findings have provided a novel mechanism whereby miR-16 represses Bcl2 and FOXO1 expression to maintain myoblast growth and skeletal muscle mass.
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Affiliation(s)
- Xinzheng Jia
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
| | - Hongjia Ouyang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
| | - Bahareldin Ali Abdalla
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
| | - Haiping Xu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
| | - Qinghua Nie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China.
| | - Xiquan Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China
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Duan X, Ji W, Dong B, Sun G, Bian Y. Myostatin in black Muscovy duck (Cairina moschata): full-length cDNA cloning and age-dependent mRNA expression compared with IGF-I. Br Poult Sci 2016; 57:619-627. [PMID: 27213714 DOI: 10.1080/00071668.2016.1193666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Insulin-like growth factor-I (IGF-I) and myostatin (MSTN) are a pair of critical positive and negative growth regulators. The aim of the current study was to examine the age-dependent and muscle-specific expression of IGF-I and MSTN mRNAs in black Muscovy ducks in order to understand their roles in regulating the postnatal muscle growth of domestic ducks. The full-length cDNA of the black Muscovy duck MSTN gene was cloned and the age-dependent mRNA expression profile was compared with that of the IGF-I mRNA in skeletal muscles. The cDNA sequence of the MSTN gene was 1128 bp in length and encodes 375 amino acids, with more than 94.9% homology with poultry MSTN genes, and 83.0-92.0% homology with that of human and mammals (accession: KR006339.1). The IGF-I and MSTN mRNA expression exhibited opposite trends in age-dependency and in different muscles: IGF-I mRNA level was high in the early postnatal stage and low in the late mature stage, corresponding positively to growth; while the MSTN mRNA was low in the early stage, increased gradually and reached the highest level in mature muscles, and was negatively related to muscle growth. In the breast muscles, IGF-I mRNA was much higher than in the leg muscles; the opposite effect was seen in MSTN mRNA. These data suggest that the relative expression levels of IGF-I and MSTN are essential determinants in the temporal and muscle-specific regulation of postnatal skeletal muscle growth in Muscovy duck and possibly in other poultry species as well.
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Affiliation(s)
- X Duan
- a Jiangsu Agri-Animal Husbandry Vocational College , Taizhou , Jiangsu , China.,b National Gene Bank of Waterfowl Resources , Taizhou , Jiangsu , China
| | - W Ji
- a Jiangsu Agri-Animal Husbandry Vocational College , Taizhou , Jiangsu , China.,b National Gene Bank of Waterfowl Resources , Taizhou , Jiangsu , China
| | - B Dong
- a Jiangsu Agri-Animal Husbandry Vocational College , Taizhou , Jiangsu , China.,b National Gene Bank of Waterfowl Resources , Taizhou , Jiangsu , China
| | - G Sun
- a Jiangsu Agri-Animal Husbandry Vocational College , Taizhou , Jiangsu , China.,b National Gene Bank of Waterfowl Resources , Taizhou , Jiangsu , China
| | - Y Bian
- b National Gene Bank of Waterfowl Resources , Taizhou , Jiangsu , China
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Mroczek-Sosnowska N, Łukasiewicz M, Wnuk A, Sawosz E, Niemiec J, Skot A, Jaworski S, Chwalibog A. In ovo administration of copper nanoparticles and copper sulfate positively influences chicken performance. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:3058-3062. [PMID: 26417698 DOI: 10.1002/jsfa.7477] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 07/15/2015] [Accepted: 09/21/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Copper (Cu) is a key trace mineral involved in a variety of physiological processes, and is commonly used in poultry production. However, regardless of the inclusion level the majority of Cu is excreted with poultry faeces. We hypothesise that in ovo administration will allow for better utilisation of Cu during embryo development than when supplied post-natally with feed to growing chickens. Thus, the objective of this study was to evaluate effects of in ovo administration of NanoCu and copper sulfate (CuSO4 ) on broiler chicken performance. RESULTS The study showed the positive influences of Cu nanoparticles and CuSO4 on broiler chickens performance. Body weight, at the end of the rearing period (day 42) was significantly higher in NanoCu (2206 g) and CuSO4 (2402 g) groups compared to the control group (2000 g). Both treatment groups had significantly lower feed conversion rate and mortality, and higher percentage of breast and leg muscles in the carcass versus control. CONCLUSION The in ovo application of Cu colloids may ensure an efficient penetration of Cu into the embryonic tissue with long lasting effects on postnatal growth. The method may provide a successful alternative to using Cu as a feed additive. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Natalia Mroczek-Sosnowska
- Department of Poultry Breeding, Faculty of Animal Science, Warsaw University of Life Sciences, Warsaw, Poland
| | - Monika Łukasiewicz
- Department of Poultry Breeding, Faculty of Animal Science, Warsaw University of Life Sciences, Warsaw, Poland
| | - Agnieszka Wnuk
- Department of Poultry Breeding, Faculty of Animal Science, Warsaw University of Life Sciences, Warsaw, Poland
| | - Ewa Sawosz
- Department of Animal Nutrition and Biotechnology, Faculty of Animal Science, Warsaw University of Life Sciences, Warsaw, Poland
| | - Jan Niemiec
- Department of Poultry Breeding, Faculty of Animal Science, Warsaw University of Life Sciences, Warsaw, Poland
| | - Abdullah Skot
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sławomir Jaworski
- Department of Animal Nutrition and Biotechnology, Faculty of Animal Science, Warsaw University of Life Sciences, Warsaw, Poland
| | - André Chwalibog
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Shahjahan M, Liu R, Zhao G, Wang F, Zheng M, Zhang J, Song J, Wen J. Identification of Histone Deacetylase 2 as a Functional Gene for Skeletal Muscle Development in Chickens. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2016; 29:479-86. [PMID: 26949948 PMCID: PMC4782082 DOI: 10.5713/ajas.15.0252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 07/01/2015] [Accepted: 08/05/2015] [Indexed: 11/27/2022]
Abstract
A previous genome-wide association study (GWAS) exposed histone deacetylase 2 (HDAC2) as a possible candidate gene for breast muscle weight in chickens. The present research has examined the possible role of HDAC2 in skeletal muscle development in chickens. Gene expression was measured by quantitative polymerase chain reaction in breast and thigh muscles during both embryonic (four ages) and post-hatch (five ages) development and in cultures of primary myoblasts during both proliferation and differentiation. The expression of HDAC2 increased significantly across embryonic days (ED) in breast (ED 14, 16, 18, and 21) and thigh (ED 14 and 18, and ED 14 and 21) muscles suggesting that it possibly plays a role in myoblast hyperplasia in both breast and thigh muscles. Transcript abundance of HDAC2 identified significantly higher in fast growing muscle than slow growing in chickens at d 90 of age. Expression of HDAC2 during myoblast proliferation in vitro declined between 24 h and 48 h when expression of the marker gene paired box 7 (PAX7) increased and cell numbers increased throughout 72 h of culture. During induced differentiation of myoblasts to myotubes, the abundance of HDAC2 and the marker gene myogenic differentiation 1 (MYOD1), both increased significantly. Taken together, it is suggested that HDAC2 is most likely involved in a suppressive fashion in myoblast proliferation and may play a positive role in myoblast differentiation. The present results confirm the suggestion that HDAC2 is a functional gene for pre-hatch and post-hatch (fast growing muscle) development of chicken skeletal muscle.
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Affiliation(s)
- Md Shahjahan
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
| | - Ranran Liu
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
| | - Guiping Zhao
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
| | - Fangjie Wang
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
| | - Maiqing Zheng
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
| | - Jingjing Zhang
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
| | - Jiao Song
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
| | - Jie Wen
- State Key Laboratory of Animal Nutrition, Beijing 100193, China
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Yang Z, Liu Q, Mannix RJ, Xu X, Li H, Ma Z, Ingber DE, Allen PD, Wang Y. Mononuclear cells from dedifferentiation of mouse myotubes display remarkable regenerative capability. Stem Cells 2015; 32:2492-501. [PMID: 24916688 DOI: 10.1002/stem.1742] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 03/26/2014] [Accepted: 04/04/2014] [Indexed: 02/06/2023]
Abstract
Certain lower organisms achieve organ regeneration by reverting differentiated cells into tissue-specific progenitors that re-enter embryonic programs. During muscle regeneration in the urodele amphibian, postmitotic multinucleated skeletal myofibers transform into mononucleated proliferating cells upon injury, and a transcription factor-msx1 plays a role in their reprograming. Whether this powerful regeneration strategy can be leveraged in mammals remains unknown, as it has not been demonstrated that the dedifferentiated progenitor cells arising from muscle cells overexpressing Msx1 are lineage-specific and possess the same potent regenerative capability as their amphibian counterparts. Here, we show that ectopic expression of Msx1 reprograms postmitotic, multinucleated, primary mouse myotubes to become proliferating mononuclear cells. These dedifferentiated cells reactivate genes expressed by embryonic muscle progenitor cells and generate only muscle tissue in vivo both in an ectopic location and inside existing muscle. More importantly, distinct from adult muscle satellite cells, these cells appear both to fuse with existing fibers and to regenerate myofibers in a robust and time-dependent manner. Upon transplantation into a degenerating muscle, these dedifferentiated cells generated a large number of myofibers that increased over time and replenished almost half of the cross-sectional area of the muscle in only 12 weeks. Our study demonstrates that mammals can harness a muscle regeneration strategy used by lower organisms when the same molecular pathway is activated.
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Affiliation(s)
- Zhong Yang
- College of Laboratory Medicine, Southwest Hospital, Third Military Medical University, Chongqing, People's Republic of China; Department of Anesthesia Perioperative and Pain Medicine, Boston, Massachusetts, USA
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Abstract
The abundance and cross-linking of intramuscular connective tissue contributes to the background toughness of meat, and is thus undesirable. Connective tissue is mainly synthesized by intramuscular fibroblasts. Myocytes, adipocytes and fibroblasts are derived from a common pool of progenitor cells during the early embryonic development. It appears that multipotent mesenchymal stem cells first diverge into either myogenic or non-myogenic lineages; non-myogenic mesenchymal progenitors then develop into the stromal-vascular fraction of skeletal muscle wherein adipocytes, fibroblasts and derived mesenchymal progenitors reside. Because non-myogenic mesenchymal progenitors mainly undergo adipogenic or fibrogenic differentiation during muscle development, strengthening progenitor proliferation enhances the potential for both intramuscular adipogenesis and fibrogenesis, leading to the elevation of both marbling and connective tissue content in the resulting meat product. Furthermore, given the bipotent developmental potential of progenitor cells, enhancing their conversion to adipogenesis reduces fibrogenesis, which likely results in the overall improvement of marbling (more intramuscular adipocytes) and tenderness (less connective tissue) of meat. Fibrogenesis is mainly regulated by the transforming growth factor (TGF) β signaling pathway and its regulatory cascade. In addition, extracellular matrix, a part of the intramuscular connective tissue, provides a niche environment for regulating myogenic differentiation of satellite cells and muscle growth. Despite rapid progress, many questions remain in the role of extracellular matrix on muscle development, and factors determining the early differentiation of myogenic, adipogenic and fibrogenic cells, which warrant further studies.
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Du M, Wang B, Fu X, Yang Q, Zhu MJ. Fetal programming in meat production. Meat Sci 2015; 109:40-7. [PMID: 25953215 DOI: 10.1016/j.meatsci.2015.04.010] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 04/14/2015] [Accepted: 04/16/2015] [Indexed: 12/23/2022]
Abstract
Nutrient fluctuations during the fetal stage affects fetal development, which has long-term impacts on the production efficiency and quality of meat. During the early development, a pool of mesenchymal progenitor cells proliferate and then diverge into either myogenic or adipogenic/fibrogenic lineages. Myogenic progenitor cells further develop into muscle fibers and satellite cells, while adipogenic/fibrogenic lineage cells develop into adipocytes, fibroblasts and resident fibro-adipogenic progenitor cells. Enhancing the proliferation and myogenic commitment of progenitor cells during fetal development enhances muscle growth and lean production in offspring. On the other hand, promoting the adipogenic differentiation of adipogenic/fibrogenic progenitor cells inside the muscle increases intramuscular adipocytes and reduces connective tissue, which improves meat marbling and tenderness. Available studies in mammalian livestock, including cattle, sheep and pigs, clearly show the link between maternal nutrition and the quantity and quality of meat production. Similarly, chicken muscle fibers develop before hatching and, thus, egg and yolk sizes and hatching temperature affect long-term growth performance and meat production of chicken. On the contrary, because fishes are able to generate new muscle fibers lifelong, the impact of early nutrition on fish growth performance is expected to be minor, which requires further studies.
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Affiliation(s)
- Min Du
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States.
| | - Bo Wang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Xing Fu
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Qiyuan Yang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA 99164, United States
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Mroczek-Sosnowska N, Sawosz E, Vadalasetty KP, Łukasiewicz M, Niemiec J, Wierzbicki M, Kutwin M, Jaworski S, Chwalibog A. Nanoparticles of copper stimulate angiogenesis at systemic and molecular level. Int J Mol Sci 2015; 16:4838-49. [PMID: 25741768 PMCID: PMC4394452 DOI: 10.3390/ijms16034838] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 02/12/2015] [Accepted: 02/15/2015] [Indexed: 01/01/2023] Open
Abstract
Copper is a key element affecting blood vessel growth and muscle development. However, the ions released from Cu salts are toxic. Given their specific physicochemical properties, nanoparticles of Cu (NanoCu) may have different bioactivity and affect the development of blood vessel and muscles in a different manner than Cu salts. The objective of the study was to evaluate the influence of NanoCu on embryo development and angiogenesis at the systemic and molecular level, in experiments using a chick embryo model. Fertilized chicken eggs were divided into a control group, and groups injected with a placebo, CuSO4 or NanoCu. Embryo development at the whole body level and molecular indices using an embryo chorioallantoic membrane model were measured during embryogenesis. The present study indicated for the first time that NanoCu have pro-angiogenic properties at the systemic level, to a greater degree than CuSO4 salt. The properties of NanoCu were confirmed at the molecular level, demonstrating significant effects on mRNA concentration and on mRNA gene expression of all pro-angiogenic and pro-proliferative genes measured herein.
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Affiliation(s)
- Natalia Mroczek-Sosnowska
- Division of Poultry Breeding, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
| | - Ewa Sawosz
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
| | - Krishna Prasad Vadalasetty
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen, Groennegaardsvej 3, 1870 Frederiksberg, Denmark.
| | - Monika Łukasiewicz
- Division of Poultry Breeding, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
| | - Jan Niemiec
- Division of Poultry Breeding, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
| | - Mateusz Wierzbicki
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
| | - Marta Kutwin
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
| | - Sławomir Jaworski
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
| | - André Chwalibog
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen, Groennegaardsvej 3, 1870 Frederiksberg, Denmark.
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Gao J, Lv Z, Li C, Yue Y, Zhao X, Wang F, Guo Y. Maternal zinc supplementation enhanced skeletal muscle development through increasing protein synthesis and inhibiting protein degradation of their offspring. Biol Trace Elem Res 2014; 162:309-16. [PMID: 25231347 DOI: 10.1007/s12011-014-0122-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 09/04/2014] [Indexed: 10/24/2022]
Abstract
Previous studies proved that maternal zinc supplementation had no significant effect on body weight (BW) of the offspring, but the effects of maternal zinc supplementation on skeletal muscle development of the offspring are poorly defined. Here, broiler breeders at 46 weeks old were allocated into three treatments with six replicates of 40 hens each and fed with diets supplemented with zinc from ZnSO4 at 0 (group Zn/C), 50 mg/kg (group Zn/L), and 300 mg/kg (group Zn/H) respectively for 6 weeks. The male offspring from each dietary treatment were divided into seven cages of ten birds each and fed with a commercial diet with supplemental zinc from ZnSO4 at 20 mg/kg. Results indicated that with the increase of zinc supplementation in hen's diet, the zinc levels were significantly elevated (P < 0.05) in the egg yolk. Compared with the control group, the breast muscle yield and muscle fiber width were significantly (P < 0.05) higher and larger in the broilers from group Zn/H at 2 and 5 weeks post-hatch, the phosphorylation of AKT at serine 473 residue (Ser 473), mammalian target of rapamycin (mTOR) at serine 2448 residue (Ser 2448), and FOXO at serine 256 residue (Ser 256) in skeletal muscles of the birds from various dietary treatments at two different age post-hatch were significantly (P < 0.05) increased. The phosphorylation of mTOR and FOXO was usually related to protein synthesis and degradation. In conclusion, supplemental zinc into the breeders' diet could increase protein synthesis and decrease protein degradation, which, in turn, enhance breast muscle development of the offspring.
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Affiliation(s)
- Jing Gao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
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Gündüz N, Oznurlu Y. Adverse effects of aflatoxin B1on skeletal muscle development in broiler chickens. Br Poult Sci 2014; 55:684-92. [DOI: 10.1080/00071668.2014.949621] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Chen W, Lv YT, Zhang HX, Ruan D, Wang S, Lin YC. Developmental specificity in skeletal muscle of late-term avian embryos and its potential manipulation. Poult Sci 2013; 92:2754-64. [PMID: 24046424 DOI: 10.3382/ps.2013-03099] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Unlike the mammalian fetus, development of the avian embryo is independent of the maternal uterus and is potentially vulnerable to physiological and environmental stresses close to hatch. In contrast to the fetus of late gestation in mammals, skeletal muscle in avian embryos during final incubation shows differential developmental characteristics: 1) muscle mobilization (also called atrophy) is selectively enhanced in the type II fibers (pectoral muscle) but not in the type I fibers (biceps femoris and semimembranosus muscle), involving activation of ubiquitin-mediated protein degradation and suppression of S6K1-mediated protein translation; 2) the proliferative activity of satellite cells is decreased in the atrophied muscle of late-term embryos but enhanced at the day of hatch, probably preparing for the postnatal growth. The mobilization of muscle may represent an adaptive response of avian embryos to external (environmental) or internal (physiological) changes, considering there are developmental transitions both in hormones and requirements for glycolytic substrates from middle-term to late-term incubation. Although the exact mechanism triggering muscle fiber atrophy is still unknown, nutritional and endocrine changes may be of importance. The atrophied muscle fiber recovers as soon as feed and water are available to the hatchling. In ovo feeding of late-term embryos has been applied to improve the nutritional status and therein enhances muscle development. Similarly, in ovo exposure to higher temperature or green light during the critical period of muscle development are also demonstrated to be potential strategies to promote pre- and posthatch muscle growth.
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Affiliation(s)
- W Chen
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
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45
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Grodzik M, Sawosz F, Sawosz E, Hotowy A, Wierzbicki M, Kutwin M, Jaworski S, Chwalibog A. Nano-nutrition of chicken embryos. The effect of in ovo administration of diamond nanoparticles and L-glutamine on molecular responses in chicken embryo pectoral muscles. Int J Mol Sci 2013; 14:23033-44. [PMID: 24264045 PMCID: PMC3856104 DOI: 10.3390/ijms141123033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 11/12/2013] [Accepted: 11/13/2013] [Indexed: 12/27/2022] Open
Abstract
It has been demonstrated that the content of certain amino acids in eggs is not sufficient to fully support embryonic development. One possibility to supply the embryo with extra nutrients and energy is in ovo administration of nutrients. Nanoparticles of diamond are highly biocompatible non-toxic carbonic structures, and we hypothesized that bio-complexes of diamond nanoparticles with l-glutamine may affect molecular responses in breast muscle. The objective of the investigation was to evaluate the effect of diamond nanoparticle (ND) and l-glutamine (Gln) on expression of growth and differentiation factors of chicken embryo pectoral muscles. ND, Gln, and Gln/ND solutions (50 mg/L) were injected into fertilized broiler chicken eggs at the beginning of embryogenesis. Muscle tissue was dissected at day 20 of incubation and analysed for gene expression of FGF2, VEGF-A, and MyoD1. ND and especially Gln/ND up-regulated expression of genes related to muscle cell proliferation (FGF2) and differentiation (MyoD1). Furthermore, the ratio between FGF2 and MyoD1 was highest in the Gln/ND group. At the end of embryogenesis, Gln/ND enhanced both proliferation and differentiation of pectoral muscle cells and differentiation dominated over proliferation. These preliminary results suggest that the bio-complex of glutamine and diamond nanoparticles may accelerate growth and maturation of muscle cells.
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Affiliation(s)
- Marta Grodzik
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, Warsaw 02-786, Poland; E-Mails: (M.G.); (E.S.); (A.H.); (M.W.); (M.K.); (S.J.)
| | - Filip Sawosz
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen, Groennegaardsvej 3, 1870 Frederiksberg, Denmark; E-Mail:
| | - Ewa Sawosz
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, Warsaw 02-786, Poland; E-Mails: (M.G.); (E.S.); (A.H.); (M.W.); (M.K.); (S.J.)
| | - Anna Hotowy
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, Warsaw 02-786, Poland; E-Mails: (M.G.); (E.S.); (A.H.); (M.W.); (M.K.); (S.J.)
| | - Mateusz Wierzbicki
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, Warsaw 02-786, Poland; E-Mails: (M.G.); (E.S.); (A.H.); (M.W.); (M.K.); (S.J.)
| | - Marta Kutwin
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, Warsaw 02-786, Poland; E-Mails: (M.G.); (E.S.); (A.H.); (M.W.); (M.K.); (S.J.)
| | - Sławomir Jaworski
- Division of Nanobiotechnology, Warsaw University of Life Sciences, Ciszewskiego 8, Warsaw 02-786, Poland; E-Mails: (M.G.); (E.S.); (A.H.); (M.W.); (M.K.); (S.J.)
| | - André Chwalibog
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen, Groennegaardsvej 3, 1870 Frederiksberg, Denmark; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +45-3533-3044; Fax: +45-3533-3020
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Sawosz F, Pineda L, Hotowy A, Jaworski S, Prasek M, Sawosz E, Chwalibog A. Nano-nutrition of chicken embryos. The effect of silver nanoparticles and ATP on expression of chosen genes involved in myogenesis. Arch Anim Nutr 2013; 67:347-55. [PMID: 23952606 DOI: 10.1080/1745039x.2013.830520] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
It has been suggested that the quantity and quality of nutrients stored in the egg might not be optimal for the fast rate of chicken embryo development in modern broilers, and embryos could be supplemented with nutrients by in ovo injection. Recent experiments showed that in ovo feeding reduces post-hatch mortality and skeletal disorders and increases muscle growth and breast meat yield. Adenosine triphosphate (ATP) is a "ready for use" energetic molecule, while nanoparticles of silver (Nano-Ag) may penetrate tissues as well as cells and localise inside cells. In this investigation, we hypothesised that silver nanoparticles could be used as a protective carrier for ATP as well as an active agent. ATP and/or an ATP complex with Nano-Ag would be delivered to the muscle cells as a gene expression regulator and promoter of growth and development of embryo breast muscle. A collection of 160 broiler eggs was randomly divided into a Control group without injection and injected groups with hydrocolloids of Nano-Ag, ATP or a complex of Nano-Ag and ATP (Nano-Ag/ATP). The embryos were evaluated on day 20 of incubation. The results indicate that the application of ATP to chicken embryos increases expression of fibroblast growth factor 2 (FGF2), vascular endothelial growth factor (VEGF) and Na(+)/K(+) transporting ATPase (ATP1A1), which may indicate that an extra energy source can enhance molecular mechanisms of muscle cell proliferation. Nano-Ag also up-regulated expression of FGF2, VEGF, ATP1A1 and, also up-regulated expression of myogenic differentiation 1(MyoD1), affecting cell differentiation. The results indicate that ATP and Nano-Ag may accelerate growth and maturation of muscle cells.
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Affiliation(s)
- Filip Sawosz
- a Department of Veterinary Clinical and Animal Sciences , University of Copenhagen , Frederiksberg C , Denmark
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47
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Sławińska A, Brzezińska J, Siwek M, Elminowska-Wenda G. Expression of myogenic genes in chickens stimulated in ovo with light and temperature. Reprod Biol 2013; 13:161-5. [PMID: 23719122 DOI: 10.1016/j.repbio.2013.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 03/12/2012] [Indexed: 11/29/2022]
Abstract
Since chicken myogenesis is tightly controlled by myogenic regulatory factors (MRFs), the external stimuli (e.g. light or temperature) affecting the proliferation and differentiation of the muscle cells have a primary effect on the gene expression of MRFs. The aim of this study was to analyze the expression of some of MRF genes (MyoD1, myogenin and Myf5) in response to the stimulation of chicken embryos with green light (AL group) or increased temperature (38.5°C; AT group) on day 18 of embryo development (18ED) as well as on days 4 (4PHD) and 8 (8PHD) post hatch. To achieve this goal a quantitative reverse transcription polymerase chain reaction was used. The most prominent differences in gene expression were observed before hatching. Relative expression of MyoD1 on 18ED was higher (p<0.05) in AL and control (AC) groups in comparison to the AT group. Myogenin expression on 18ED was lower (p<0.05) in control chickens than in both treated groups. Light stimulation in ovo decreased (p<0.05) the Myf5 expression on 18ED in comparison to the control group. Green-light illumination applied during in ovo development had more pronounced effects on mRNA level of MRFs genes measured during both the pre- and post hatch development. The elevated temperature applied during embryonic development affected only the 18ED time point. This suggests that the effect of green-light illumination on chicken myogenesis was more prolonged than that of elevated temperature.
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Affiliation(s)
- Anna Sławińska
- University of Technology and Life Sciences in Bydgoszcz, Faculty of Animal Breeding and Biology, Department of Animal Biotechnology, 85-225 Bydgoszcz, Poland.
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Holt LJ, Turner N, Mokbel N, Trefely S, Kanzleiter T, Kaplan W, Ormandy CJ, Daly RJ, Cooney GJ. Grb10 regulates the development of fiber number in skeletal muscle. FASEB J 2012; 26:3658-69. [DOI: 10.1096/fj.11-199349] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Lowenna J. Holt
- Diabetes and Obesity Research ProgramGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
| | - Nigel Turner
- Diabetes and Obesity Research ProgramGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
- St. Vincent's Hospital Clinical SchoolUniversity of New South WalesSydneyNew South WalesAustralia
| | - Nancy Mokbel
- Diabetes and Obesity Research ProgramGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
| | - Sophie Trefely
- Diabetes and Obesity Research ProgramGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
| | - Timo Kanzleiter
- Diabetes and Obesity Research ProgramGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
| | - Warren Kaplan
- Peter Wills Bioinformatics CentreGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
| | - Christopher J. Ormandy
- Cancer Research ProgramGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
- St. Vincent's Hospital Clinical SchoolUniversity of New South WalesSydneyNew South WalesAustralia
| | - Roger J. Daly
- Cancer Research ProgramGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
- St. Vincent's Hospital Clinical SchoolUniversity of New South WalesSydneyNew South WalesAustralia
| | - Gregory J. Cooney
- Diabetes and Obesity Research ProgramGarvan Institute of Medical ResearchSydneyNew South WalesAustralia
- St. Vincent's Hospital Clinical SchoolUniversity of New South WalesSydneyNew South WalesAustralia
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Zielinska M, Sawosz E, Grodzik M, Balcerak M, Wierzbicki M, Skomial J, Sawosz F, Chwalibog A. Effect of taurine and gold nanoparticles on the morphological and molecular characteristics of muscle development during chicken embryogenesis. Arch Anim Nutr 2012; 66:1-13. [DOI: 10.1080/1745039x.2011.644918] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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50
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Sporer KRB, Tempelman RJ, Ernst CW, Reed KM, Velleman SG, Strasburg GM. Transcriptional profiling identifies differentially expressed genes in developing turkey skeletal muscle. BMC Genomics 2011; 12:143. [PMID: 21385442 PMCID: PMC3060885 DOI: 10.1186/1471-2164-12-143] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Accepted: 03/08/2011] [Indexed: 11/12/2022] Open
Abstract
Background Skeletal muscle growth and development from embryo to adult consists of a series of carefully regulated changes in gene expression. Understanding these developmental changes in agriculturally important species is essential to the production of high quality meat products. For example, consumer demand for lean, inexpensive meat products has driven the turkey industry to unprecedented production through intensive genetic selection. However, achievements of increased body weight and muscle mass have been countered by an increased incidence of myopathies and meat quality defects. In a previous study, we developed and validated a turkey skeletal muscle-specific microarray as a tool for functional genomics studies. The goals of the current study were to utilize this microarray to elucidate functional pathways of genes responsible for key events in turkey skeletal muscle development and to compare differences in gene expression between two genetic lines of turkeys. To achieve these goals, skeletal muscle samples were collected at three critical stages in muscle development: 18d embryo (hyperplasia), 1d post-hatch (shift from myoblast-mediated growth to satellite cell-modulated growth by hypertrophy), and 16wk (market age) from two genetic lines: a randombred control line (RBC2) maintained without selection pressure, and a line (F) selected from the RBC2 line for increased 16wk body weight. Array hybridizations were performed in two experiments: Experiment 1 directly compared the developmental stages within genetic line, while Experiment 2 directly compared the two lines within each developmental stage. Results A total of 3474 genes were differentially expressed (false discovery rate; FDR < 0.001) by overall effect of development, while 16 genes were differentially expressed (FDR < 0.10) by overall effect of genetic line. Ingenuity Pathways Analysis was used to group annotated genes into networks, functions, and canonical pathways. The expression of 28 genes involved in extracellular matrix regulation, cell death/apoptosis, and calcium signaling/muscle function, as well as genes with miscellaneous function was confirmed by qPCR. Conclusions The current study identified gene pathways and uncovered novel genes important in turkey muscle growth and development. Future experiments will focus further on several of these candidate genes and the expression and mechanism of action of their protein products.
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Affiliation(s)
- Kelly R B Sporer
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan 48824, USA
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