中国畜牧兽医2023，Vol.50Issue(12)：4947-4957,11.DOI:10.16431/j.cnki.1671-7236.2023.12.017
荷斯坦牛与娟姗牛体尺性状生长曲线的比较研究
Comparative Study on Growth Curve of Body Measurements Between Holstein and Jersey Cattle
摘要
Abstract
[Objective]The objective of this study was to understand the growth and development patterns differences between Holstein and Jersey cattle.[Method]The study measured four body measurements,including withers height,hip height,body length,and chest girth of 96 Holstein and 225 Jersey cattle from two herds in Shanxi and Hebei provinces.Four nonlinear growth models,Logistic,Gompertz,Bertalanffy and Brody models,were used to fit growth curves for four body measurements,and the estimated values of the growth parameters A,B,and K were obtained from different growth models.The model with the largest coefficient of determination(R2)was selected as the best fitting model for each body measurements trait of the three test groups,Holstein cattle from Shanxi,Jersey cattle from Shanxi and Jersey cattle from Hebei.[Result]The best fit model for the growth curves of body height(R2≥0.939)and neck height(R2≥0.886)of Holstein and Jersey cattle was Brody model.For body length(R2≥0.942),the Bertalanffy model and the Brody model were selected as the best fit models for Holstein and Jersey cattle,respectively.The superiority of the Brody,Bertalanffy,and Logistic models was identified for growth curve modeling of chest girth(R2≥0.930)for Holstein cattle from Shanxi,Jersey cattle from Shanxi and Jersey cattle from Hebei,respectively.At the same age,the estimated values of each body measurement for Holstein cattle from Shanxi were higher than those of Jersey cattle from Shanxi,with the differences between two breeds gradually increasing with age.The estimated value for mature withers height was 155.8 cm for Holstein cattle and 123.9 cm for Jersey cattle,mature hip height was 161.2 cm for Holstein cattle and 133.1 cm for Jersey cattle,mature body length was 168.6 cm for Holstein cattle and 147.1 cm for Jersey cattle,and mature chest girth was 210.9 cm for Holstein cattle and 186.3 cm for Jersey cattle.[Conclusion]Holstein and Jersey cattle had different growth patterns,which provide a better understanding of growth and development in Holstein and Jersey cattle and contribute valuable insights for feeding management.关键词
荷斯坦牛/娟姗牛/体尺/生长曲线拟合Key words
Holstein cattle/Jersey cattle/body measurement/growth curve fitting分类
农业科技引用本文复制引用
安松岩,王雅春,常瑶,陈群,吉虹锦,杜泽,杨若钰,许静漪,马烨桦,俞英..荷斯坦牛与娟姗牛体尺性状生长曲线的比较研究[J].中国畜牧兽医,2023,50(12):4947-4957,11.基金项目
国家现代农业产业技术体系(CARS-36) （CARS-36）
河南省重点研发专项(221111111100) （221111111100）
