中国畜禽种业2026，Vol.22Issue(3)：93-98,6.
基于生产性能测定的青海多胎藏羊生长曲线模型优化
Optimization of growth curve model for Qinghai multiparous tibetan sheep based on production performance measurement
摘要
Abstract
In order to explore the growth and development law of multi-birth Tibetan sheep at the age of 1～6 months and provide a basis for their scientific breeding and feeding management,the 1,3,4,5,6 month-old multi-birth Tibetan lambs in the Plateau Modern Ecological Animal Husbandry Demonstration Park in Haiyan County,Haibei Prefecture,Qinghai Province were selected to body weight,body height,body length and chest circumference,and the growth curve model was constructed by correlation analysis and polynomial regression.The results showed that the correlation coefficients between the indexes were ≥ 0.94 with the increase of monthly age.The first-order polynomial regression model(y=-0.47+0.23A+0.08H+0.11L+0.10C)with monthly age,body height,body length and chest circumference as independent variables was verified by 5-fold cross-verification R2=0.8793 and RMSE=0.98 kg,which had strong generalization ability and could accurately predict the weight of 1～6 months old lambs.The constructed growth model accounted for 87.93％of the body weight variation and could accurately simulate the early growth and development patterns of Qinghai multi-fetal Tibetan sheep.关键词
青海多胎藏羊/生产性能/相关分析/生长模型/体重预测Key words
Qinghai multi-fetal Tibetan sheep/Production performance/Correlation analysis/Growth model/Body weight prediction分类
农业科技引用本文复制引用
张庆旭,孙武,金夏阳,马世科,马玉红..基于生产性能测定的青海多胎藏羊生长曲线模型优化[J].中国畜禽种业,2026,22(3):93-98,6.基金项目
国家现代农业产业技术体系项目(CARS-39-35) （CARS-39-35）
青海省科技厅应用基础研究项目(2025-ZJ-719) （2025-ZJ-719）
青海省中青年科技人才托举工程项目(2023QHSKXRCTJ17) （2023QHSKXRCTJ17）
农业农村部青藏高原畜禽遗传育种重点实验室开放课题(2025-PLGB-06). （2025-PLGB-06）
