新疆地区华西牛体重遗传参数估计及其稳定性研究

Estimation of Genetic Parameters for Body Weight and Its Stability in Huaxi Cows from Xinjiang Region.

作者信息

Feng Ye, Zhao Wenjuan, Lu Xubin, Gao Xue, Zhang Qian, Zhang Bin, Wang Bao, Zhong Fagang, Han Mengli, Chen Zhi

机构信息

College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.

State Key Laboratory for Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, China.

出版信息

Animals (Basel). 2025 Jul 31;15(15):2248. doi: 10.3390/ani15152248.

DOI:10.3390/ani15152248

PMID:40805038

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12345513/

Abstract

In this study, we analyzed data from 2992 cows to comprehensively evaluate the adult weight (WEI), a key growth and body-size indicator, in West China cattle, aiming to estimate the related phenotypic and genetic parameters. The analysis focused on four weight traits while considering non-genetic factors such as parity, season, year, and birth weight. Data were processed and corrected using a MIXED procedure and a multi-trait animal model. Results showed that these non-genetic factors significantly affected the weight traits ( < 0.05), which had high heritability (0.25-0.39) ( < 0.01). WEI is crucial for improving the genetic traits of cattle in western China and provides innovative approaches for optimizing herd management, enhancing the efficiency of genetic selection, and boosting beef cattle productivity.

摘要

在本研究中，我们分析了2992头奶牛的数据，以全面评估中国西部牛的成年体重（WEI），这是一个关键的生长和体型指标，旨在估计相关的表型和遗传参数。分析聚焦于四个体重性状，同时考虑胎次、季节、年份和出生体重等非遗传因素。数据使用MIXED程序和多性状动物模型进行处理和校正。结果表明，这些非遗传因素对体重性状有显著影响（<0.05），体重性状具有较高的遗传力（0.25 - 0.39）（<0.01）。成年体重对于改善中国西部牛的遗传性状至关重要，并为优化畜群管理、提高遗传选择效率和提高肉牛生产力提供了创新方法。