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Horecka B, Wojciechowski W, Drabik K, Wengerska K, Batkowska J. Characterization of the Coding Sequence of the MC1R (Melanocortin 1 Receptor) Gene of Ayam Cemani Black Chickens. Animals (Basel) 2024; 14:2507. [PMID: 39272291 PMCID: PMC11394068 DOI: 10.3390/ani14172507] [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: 08/02/2024] [Revised: 08/21/2024] [Accepted: 08/27/2024] [Indexed: 09/15/2024] Open
Abstract
Plumage color is one of the most important traits characterizing chicken breeds. Black-boned chickens constitute a specific group of breeds with a unique phenotype. One of the representatives is the Indonesian Ayam Cemani. The extraordinary black phenotype results from a specific chromosomal rearrangement. We used complete CDS of crucial color-related gene MC1R, which plays a key role in melanin distribution but has not been previously studied in Ayam Cemani. It turned out that Ayam Cemani individuals possess a newly found non-synonymous mutation G355A resulting in amino acid substitution D119N. Together with the presence of G274A (E92K), the new missense variant enabled us to distinguish a new extended black allele at the E locus. All of the investigated birds were heterozygous in terms of the new mutation. Previous studies and our own results indicate a high level of genetic variation within the MC1R gene within and between chicken breeds. Besides the key mutations that make it possible to distinguish particular major alleles, there are also numerous substitutions that give haplotypes more characteristics for individual breeds.
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Affiliation(s)
- Beata Horecka
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 20-950 Lublin, Poland
| | - Witold Wojciechowski
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 20-950 Lublin, Poland
| | - Kamil Drabik
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 20-950 Lublin, Poland
| | - Karolina Wengerska
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 20-950 Lublin, Poland
| | - Justyna Batkowska
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 20-950 Lublin, Poland
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2
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Deng Y, Qu X, Yao Y, Li M, He C, Guo S. Investigating the impact of pigmentation variation of breast muscle on growth traits, melanin deposition, and gene expression in Xuefeng black-bone chickens. Poult Sci 2024; 103:103691. [PMID: 38598910 PMCID: PMC11017053 DOI: 10.1016/j.psj.2024.103691] [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: 01/14/2024] [Revised: 03/17/2024] [Accepted: 03/22/2024] [Indexed: 04/12/2024] Open
Abstract
The blackness traits, considered an important economic factor in the black-bone chicken industry, still exhibits a common phenomenon of significant difference in blackness of breast muscle. To improve this phenomenon, this study compared growth traits, blackness traits, and transcriptome of breast muscles between the High Blackness Group (H group) and Low Blackness Group (L group) in the Xuefeng black-bone chickens. The results are as follows: 1) There was no significant difference in growth traits between the H group and the L group (P > 0.05). 2) The skin/breast muscle L values in the H group were significantly lower than those in the L group, while the breast muscle melanin content exhibited the opposite trend (P < 0.05). 3) A significant negative correlation was observed between breast muscle melanin content and skin/breast muscle L value (P < 0.05), and skin L value exhibiting a significant positive correlation with breast muscle L value (P < 0.05). 4) The breast muscle transcriptome comparison between the H group and L group revealed 831 and 405 DEGs in female and male chickens, respectively. This included 37 shared DEGs significantly enriched in melanosome, pigment granule, and the melanogenesis pathway. Seven candidate genes (DCT, PMEL, MLANA, TYRP1, OCA2, EDNRB2, and CALML4) may play a crucial role in the melanin production of breast muscle in Xuefeng black-bone chicken. The findings could accelerate the breeding process for achieving desired levels of breast muscle blackness and contribute to the exploration of the mechanisms underlying melanin production in black-bone chickens.
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Affiliation(s)
- Yuying Deng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Xiangyong Qu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Yaling Yao
- Animal Husbandry and Aquatic Products Bureau of Huaihua City, Huaihua 418200, Hunan, China
| | - Meichun Li
- Hunan Yunfeifeng Agriculture Co. Ltd., Huaihua 418200, Hunan, China
| | - Changqing He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Songchang Guo
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, Hunan, China.
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Shinde SS, Sharma A, Vijay N. Decoding the fibromelanosis locus complex chromosomal rearrangement of black-bone chicken: genetic differentiation, selective sweeps and protein-coding changes in Kadaknath chicken. Front Genet 2023; 14:1180658. [PMID: 37424723 PMCID: PMC10325862 DOI: 10.3389/fgene.2023.1180658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/05/2023] [Indexed: 07/11/2023] Open
Abstract
Black-bone chicken (BBC) meat is popular for its distinctive taste and texture. A complex chromosomal rearrangement at the fibromelanosis (Fm) locus on the 20th chromosome results in increased endothelin-3 (EDN3) gene expression and is responsible for melanin hyperpigmentation in BBC. We use public long-read sequencing data of the Silkie breed to resolve high-confidence haplotypes at the Fm locus spanning both Dup1 and Dup2 regions and establish that the Fm_2 scenario is correct of the three possible scenarios of the complex chromosomal rearrangement. The relationship between Chinese and Korean BBC breeds with Kadaknath native to India is underexplored. Our data from whole-genome re-sequencing establish that all BBC breeds, including Kadaknath, share the complex chromosomal rearrangement junctions at the fibromelanosis (Fm) locus. We also identify two Fm locus proximal regions (∼70 Kb and ∼300 Kb) with signatures of selection unique to Kadaknath. These regions harbor several genes with protein-coding changes, with the bactericidal/permeability-increasing-protein-like gene having two Kadaknath-specific changes within protein domains. Our results indicate that protein-coding changes in the bactericidal/permeability-increasing-protein-like gene hitchhiked with the Fm locus in Kadaknath due to close physical linkage. Identifying this Fm locus proximal selective sweep sheds light on the genetic distinctiveness of Kadaknath compared to other BBC.
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Affiliation(s)
| | | | - Nagarjun Vijay
- Computational Evolutionary Genomics Lab, Department of Biological Sciences, IISER Bhopal, Bhauri, Madhya Pradesh, India
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Zi X, Ge X, Zhu Y, Liu Y, Sun D, Li Z, Liu M, You Z, Wang B, Kang J, Dou T, Ge C, Wang K. Transcriptome Profile Analysis Identifies Candidate Genes for the Melanin Pigmentation of Skin in Tengchong Snow Chickens. Vet Sci 2023; 10:vetsci10050341. [PMID: 37235424 DOI: 10.3390/vetsci10050341] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Tengchong Snow chickens are one of the most precious, black-boned chickens in Yunnan province and usually produce black meat. However, we found a small number of white meat traits in the chicken population during feeding. In order to determine the pattern of melanin deposition and the molecular mechanism of formation in the Tengchong Snow chicken, we measured the luminance value (L value) and melanin content in the skin of black meat chickens (Bc) and white meat chickens (Wc) using a color colorimeter, ELISA kit, and enzyme marker. The results showed that the L value of skin tissues in black meat chickens was significantly lower than that of white meat chickens, and the L value of skin tissues gradually increased with an increase in age. The melanin content of skin tissues in black meat chickens was higher than that of white meat chickens, and melanin content in the skin tissues gradually decreased with an increase in age, but this difference was not significant (p > 0.05); the L value of skin tissues in black meat chickens was negatively correlated with melanin content, and the correlation coefficient was mostly above -0.6. In addition, based on the phenotypic results, we chose to perform the comparative transcriptome profiling of skin tissues at 90 days of age. We screened a total of 44 differential genes, of which 32 were upregulated and 12 were downregulated. These DEGs were mainly involved in melanogenesis, tyrosine metabolism and RNA transport. We identified TYR, DCT, and EDNRB2 as possible master effector genes for skin pigmentation in Tengchong Snow black meat chickens through DEGs analysis. Finally, we measured the mRNA of TYR, DCT, MC1R, EDNRB2, GPR143, MITF, and TYRP1 genes through a quantitative real-time polymerase chain reaction (qPCR) and found that the mRNA of all the above seven genes decreased with increasing age. In conclusion, our study initially constructed an evaluation system for the black-boned traits of Tengchong Snow chickens and found key candidate genes regulating melanin deposition, which could provide an important theoretical basis for the selection and breeding of black-boned chickens.
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Affiliation(s)
- Xiannian Zi
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xuehai Ge
- Shenzhen Hualong Sunda Information Technology Co., Ltd., Shenzhen 518000, China
| | - Yixuan Zhu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yong Liu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Dawei Sun
- Yunnan Animal Science and Veterinary Institute, Kunming 650224, China
| | - Zijian Li
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Mengqian Liu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Zhengrong You
- Zhaotong Animal Husbandry and Veterinary Technology Extension Station, Zhaotong 657000, China
| | - Bo Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jiajia Kang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Tengfei Dou
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Changrong Ge
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Kun Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
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Shi H, Fu J, He Y, Li Z, Kang J, Hu C, Zi X, Liu Y, Zhao J, Dou T, Jia J, Duan Y, Wang K, Ge C. Hyperpigmentation Inhibits Early Skeletal Muscle Development in Tengchong Snow Chicken Breed. Genes (Basel) 2022; 13:genes13122253. [PMID: 36553521 PMCID: PMC9778309 DOI: 10.3390/genes13122253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/27/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022] Open
Abstract
Tengchong snow, which has white feathers and black meat, is one of the most important black-bone chicken breeds and a genetic treasure of black food in China. Although the black meat traits are dominant, there are some chickens with white meat traits born in the process of folk selection and breeding. The purpose of this study was to compare the differences in skeletal muscle development between Tengchong snow black meat chickens (BS) and white meat chickens (WS), as well as whether excessive melanin deposition has an effect on skeletal muscle development. The BS and WS groups were selected to determine their muscle development difference at stages of 1, 7, 14, 21, and 42 days, using histological stain methods to analyze the development and composing type of breast and leg muscle fibers, as well as the count of melanin in BS muscle fibers. Finally, we were validated key candidate genes associated with muscle development and melanin synthesis. The results showed that BS breast muscle development was inhibited at 7, 14, and 21 days, while the leg muscle was inhibited at 7, 14, 21, and 42 days, compared to WS. Melanin deposition was present in a temporal migration pattern and was greater in the leg muscles than in the breast muscles, and it focused around blood vessels, as well as the epithelium, perimysium, endomysium, and connective tissue. Additionally, melanin produced an inhibitory effect similar to MSTN during skeletal muscle fiber development, and the inhibition was strongest at the stage of melanin entry between muscle fibers, but the precise mechanisms need to be confirmed. This study revealed that melanin has an inhibitory effect on the early development of skeletal muscle, which will provide new insights into the role of melanin in the black-boned chicken and theoretical references for the future conservation and utilization of black-boned chicken.
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Affiliation(s)
- Hongmei Shi
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jing Fu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yang He
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Zijian Li
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jiajia Kang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Changjie Hu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xiannian Zi
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yong Liu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jinbo Zhao
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Tengfei Dou
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Junjing Jia
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yong Duan
- Kunming Animal Health Supervision, 118 Gulou Road, Kunming 650223, China
| | - Kun Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Changrong Ge
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Correspondence:
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Wu R, Chen C, Zhang X. Label-Free LC-MS/MS Analysis Reveals Different Proteomic Profiles between Egg Yolks of Silky Fowl and Ordinary Chickens. Foods 2022; 11:foods11071035. [PMID: 35407122 PMCID: PMC8997978 DOI: 10.3390/foods11071035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 02/06/2023] Open
Abstract
The proteomic profiles of Silky fowl egg yolk (SFEY) and Leghorn egg yolk (LEY) were analyzed by bottom-up label-free liquid chromatography–tandem mass spectrometry (LC-MS/MS). From a total of 186 identified proteins, 26 proteins were found significantly differentially abundant between two yolks, of which, 19 were up-regulated and 7 were down-regulated in SFEY, particularly, vitelline membrane outer layer protein 1, transthyretin and ovoinhibitor were up-regulated by 26, 25, and 16 times, respectively. In addition, there were 57 and 6 unique proteins in SFEY and LEY, respectively. Gene Ontology (GO) revealed SFEY contained relatively more abundant protease inhibitors and coagulation-related proteins. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed differentially abundant proteins in SFEY may be actively involved in the regulation of the neuroactive ligand–receptor interaction pathway. This study provides a theoretical basis for the understanding of proteomic and biological differences between these two yolks and can guide for further exploration of nutritional and biomedical use of Silky fowl egg.
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Affiliation(s)
- Rao Wu
- Chinese-German Joint Laboratory for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China;
| | - Chen Chen
- Chinese-German Joint Laboratory for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China;
- Correspondence: (C.C.); (X.Z.)
| | - Xiaoying Zhang
- Chinese-German Joint Laboratory for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China;
- Centre of Molecular & Environmental Biology, Department of Biology, University of Minho, 4710-057 Braga, Portugal
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
- Correspondence: (C.C.); (X.Z.)
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Jian H, Zu P, Rao Y, Li W, Mou T, Lin J, Zhang F. Comparative analysis of melanin deposition between Chishui silky fowl and Taihe silky fowl. JOURNAL OF APPLIED ANIMAL RESEARCH 2021. [DOI: 10.1080/09712119.2021.1981911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Huafeng Jian
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, The Ministry of Education, Guizhou University, Guiyang, People’s Republic of China
- Guizhou Province Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guizhou University, Guiyang, People’s Republic of China
- Research Institute of Poultry, Guizhou University, Guiyang, People’s Republic of China
- Guizhou University Science and Research Poultry Farm, Guiyang, People’s Republic of China
| | - Panyu Zu
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, The Ministry of Education, Guizhou University, Guiyang, People’s Republic of China
- Guizhou Province Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guizhou University, Guiyang, People’s Republic of China
- Research Institute of Poultry, Guizhou University, Guiyang, People’s Republic of China
- Guizhou University Science and Research Poultry Farm, Guiyang, People’s Republic of China
| | - Yongchao Rao
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, The Ministry of Education, Guizhou University, Guiyang, People’s Republic of China
- Guizhou Province Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guizhou University, Guiyang, People’s Republic of China
- Research Institute of Poultry, Guizhou University, Guiyang, People’s Republic of China
- Guizhou University Science and Research Poultry Farm, Guiyang, People’s Republic of China
| | - Wei Li
- Guizhou Province Management Station of Livestock Genetic Resources, Guiyang, People’s Republic of China
| | - Tenghui Mou
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, The Ministry of Education, Guizhou University, Guiyang, People’s Republic of China
- Guizhou Province Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guizhou University, Guiyang, People’s Republic of China
- Research Institute of Poultry, Guizhou University, Guiyang, People’s Republic of China
- Guizhou University Science and Research Poultry Farm, Guiyang, People’s Republic of China
| | - Jiadong Lin
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, The Ministry of Education, Guizhou University, Guiyang, People’s Republic of China
- Guizhou Province Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guizhou University, Guiyang, People’s Republic of China
- Research Institute of Poultry, Guizhou University, Guiyang, People’s Republic of China
- Guizhou University Science and Research Poultry Farm, Guiyang, People’s Republic of China
| | - Fuping Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, The Ministry of Education, Guizhou University, Guiyang, People’s Republic of China
- Guizhou Province Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guizhou University, Guiyang, People’s Republic of China
- Research Institute of Poultry, Guizhou University, Guiyang, People’s Republic of China
- Guizhou University Science and Research Poultry Farm, Guiyang, People’s Republic of China
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Wang H, Cahaner A, Lou L, Zhang L, Ge Y, Li Q, Zhang X. Genetics and breeding of a black-bone and blue eggshell chicken line. 1. Body weight, skin color, and their combined selection. Poult Sci 2021; 100:101035. [PMID: 33744609 PMCID: PMC8005828 DOI: 10.1016/j.psj.2021.101035] [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: 07/07/2020] [Revised: 12/19/2020] [Accepted: 01/23/2021] [Indexed: 11/29/2022] Open
Abstract
An experimental population of chickens was developed from the cross between 2 indigenous Chinese breeds, Dongxiang blue eggshell and Jiangshan black-bone. This breeding was aimed at eventually combining dark heavy black-bone body and blue eggshell, into a single dual-purpose breed. BW was recorded and skin L∗, a∗, and b∗ color parameters were measured by a Chroma Meter at several ages (56, 105, 150, 200, 250, and 300 d). At 250 d, 3 independent observers classified skin darkness using a 3-level visual scale (1 = light, 2 = intermediate, 3 = dark). The 7-level average visual skin darkness, calculated for each chicken, was highly correlated (−0.658 and −0.612 in females and males, respectively) with skin L∗ (lightness), indicating that the accurately measured L∗ is reliable and useful reverse expression of visual skin darkness of black-bone chickens. Mean BW and skin L∗ of both sexes increased with age, to 2,063 and 1,522 g in males and females, respectively, at 300 d, and to 63 and 55 L∗ units in males and females, respectively, at 250 d. The population's full-pedigree allowed estimating heritability and genetic correlations between traits. The heritability estimates of BW were similar in both sexes, increasing from around 0.25 at 56 d, to 0.53 to 0.60 at 150 d, and 0.57 to 0.62 at 300 d. Over the 5 ages, heritability estimates of skin L∗ were moderate to high, ranging from 0.45 to 0.58 in females, and from 0.31 to 0.65 in males, and the genetic correlations between BW and L∗ ranged mostly from 0.20 to 0.45. These low-to-moderate correlations between high BW and high L∗ (low darkness) are unfavorable; hence they were combined into an index, standardized BW minus standardized L∗, allowing future selection for high BW with low L∗. With high heritability of this index, 0.487 (females at 300 d) and 0.410 to 0.555 (males at 150 d or older), simultaneous improvements in BW and skin darkness appear to be feasible. The methodology used in this study can be useful in chicken populations experimentally bred for combination of high BW and other body characteristics.
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Affiliation(s)
- Huanhuan Wang
- Animal Husbandry Institute, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
| | - Avigdor Cahaner
- Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Lifeng Lou
- Animal Husbandry Institute, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
| | - Lei Zhang
- Animal Husbandry Institute, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
| | - Ying Ge
- Animal Husbandry Institute, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
| | - Qinghai Li
- Animal Husbandry Institute, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
| | - Xuedong Zhang
- Animal Husbandry Institute, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China.
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