中国畜牧杂志2017，Vol.53Issue(11)：35-41,7.DOI:10.19556/j.0258-7033.2017-10-035
宁夏地区荷斯坦奶牛产奶量以及乳成分变化模型的构建与分析
Construction and Analysis of Milk Production and Milk Composition Model of Holstein Cows in Ningxia Area
摘要
Abstract
In order to explore the Holstein cows in Ningxia area in Different Parities were milking characteristics,milk yield and milk composition variation of model was constructed.DHI data in Holstein cows in Ningxia area based using wood and cubic model construction of milk yield (DMY) and milk composition (milk fat percentage MFP,milk protein percentage MPP,somatic cell number of SCC,milk lactose percentage MLP and milk dry matter rate of MPP) variation with weeks of lactation (DIW),and to analyze the differences of different parities between DMY,MFP,MPP,MLP and MMP.The results showed that wood can better fit in Ningxia Holstein cows 1～4 parity lactation curves(the R2 was 0.84、0.75、0.47 and 0.64,respectively),cubic can better fitting milk protein rate curve(the R2 was 0.91、0.68、0.71 and 0.75,respectively).关键词
产奶量/乳成分/Wood模型/Cubic模型/拟合度/切线Key words
Milk yield/Milk composition/Wood model/Cubic model/Fitting/Tangent分类
农业科技引用本文复制引用
李欣,温万,脱征军,邵怀峰,顾亚玲,田佳,张伟新,李委奇..宁夏地区荷斯坦奶牛产奶量以及乳成分变化模型的构建与分析[J].中国畜牧杂志,2017,53(11):35-41,7.基金项目
宁夏回族自治区《优质高产选育》项目(2013NYYZ05) （2013NYYZ05）
