Estimation of Genetic Parameters for Conformation Traits and Milk Production Traits in Chinese Holsteins
The objective of this study was to explore the genetic parameters of conformation traits and milk production traits in Chinese Holstein cattle and to provide a reference for dairy cattle breeding. We collected the phenotypic data of 23 conformation traits and five milk production traits of Chinese H...
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MDPI AG
2022-12-01
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| author | Xiaoshu Xue Honghong Hu Junxing Zhang Yanfen Ma Liyun Han Feng Hao Yu Jiang Yun Ma |
| author_facet | Xiaoshu Xue Honghong Hu Junxing Zhang Yanfen Ma Liyun Han Feng Hao Yu Jiang Yun Ma |
| author_sort | Xiaoshu Xue |
| collection | DOAJ |
| description | The objective of this study was to explore the genetic parameters of conformation traits and milk production traits in Chinese Holstein cattle and to provide a reference for dairy cattle breeding. We collected the phenotypic data of 23 conformation traits and five milk production traits of Chinese Holsteins and used animal models to estimate the genetic parameters of conformation traits and milk production traits. The estimated heritability of conformation traits ranged from 0.11 (angularity) to 0.37 (heel depth) and the genetic correlation between conformation traits ranged from −0.73 (bone quality and rear leg-rear view) to 0.76 (chest width and loin strength). The heritability of milk production traits ranged from 0.23 (somatic cell score) to 0.50 (305-d milk yield). The estimated values of genetic correlation between conformation traits and milk production traits ranged from −0.56 (heel depth and 305-d milk yield) to 0.57 (udder texture and milk fat percentage). There was a positive genetic correlation between most conformation traits and milk fat percentage, but a weak negative genetic correlation with milk yield. Strengthening the moderately and highly heritable milk production and conformation traits, especially the selection of rear udder traits and body shape total score, will be beneficial in improving the performance of dairy cows. |
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| id | doaj.art-941e7f3a166a4bdc942ee08d885c6906 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-11T10:12:58Z |
| publishDate | 2022-12-01 |
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| record_format | Article |
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| spelling | doaj.art-941e7f3a166a4bdc942ee08d885c69062023-11-16T14:19:02ZengMDPI AGAnimals2076-26152022-12-0113110010.3390/ani13010100Estimation of Genetic Parameters for Conformation Traits and Milk Production Traits in Chinese HolsteinsXiaoshu Xue0Honghong Hu1Junxing Zhang2Yanfen Ma3Liyun Han4Feng Hao5Yu Jiang6Yun Ma7Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan 750021, ChinaKey Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan 750021, ChinaKey Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan 750021, ChinaKey Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan 750021, ChinaNingxia Farming Cultivate Helanshan Dairy Co., Ltd., Yinchuan 750021, ChinaNingxia Farming Cultivate Helanshan Dairy Co., Ltd., Yinchuan 750021, ChinaKey Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan 750021, ChinaKey Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan 750021, ChinaThe objective of this study was to explore the genetic parameters of conformation traits and milk production traits in Chinese Holstein cattle and to provide a reference for dairy cattle breeding. We collected the phenotypic data of 23 conformation traits and five milk production traits of Chinese Holsteins and used animal models to estimate the genetic parameters of conformation traits and milk production traits. The estimated heritability of conformation traits ranged from 0.11 (angularity) to 0.37 (heel depth) and the genetic correlation between conformation traits ranged from −0.73 (bone quality and rear leg-rear view) to 0.76 (chest width and loin strength). The heritability of milk production traits ranged from 0.23 (somatic cell score) to 0.50 (305-d milk yield). The estimated values of genetic correlation between conformation traits and milk production traits ranged from −0.56 (heel depth and 305-d milk yield) to 0.57 (udder texture and milk fat percentage). There was a positive genetic correlation between most conformation traits and milk fat percentage, but a weak negative genetic correlation with milk yield. Strengthening the moderately and highly heritable milk production and conformation traits, especially the selection of rear udder traits and body shape total score, will be beneficial in improving the performance of dairy cows.https://www.mdpi.com/2076-2615/13/1/100Holstein dairy cowsconformation traitsmilk production traitsgenetic parameters |
| spellingShingle | Xiaoshu Xue Honghong Hu Junxing Zhang Yanfen Ma Liyun Han Feng Hao Yu Jiang Yun Ma Estimation of Genetic Parameters for Conformation Traits and Milk Production Traits in Chinese Holsteins Animals Holstein dairy cows conformation traits milk production traits genetic parameters |
| title | Estimation of Genetic Parameters for Conformation Traits and Milk Production Traits in Chinese Holsteins |
| title_full | Estimation of Genetic Parameters for Conformation Traits and Milk Production Traits in Chinese Holsteins |
| title_fullStr | Estimation of Genetic Parameters for Conformation Traits and Milk Production Traits in Chinese Holsteins |
| title_full_unstemmed | Estimation of Genetic Parameters for Conformation Traits and Milk Production Traits in Chinese Holsteins |
| title_short | Estimation of Genetic Parameters for Conformation Traits and Milk Production Traits in Chinese Holsteins |
| title_sort | estimation of genetic parameters for conformation traits and milk production traits in chinese holsteins |
| topic | Holstein dairy cows conformation traits milk production traits genetic parameters |
| url | https://www.mdpi.com/2076-2615/13/1/100 |
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