鲁西黄牛成年母牛体重与体尺指标的相关回归分析

Correlation and Regression Analysis of Adult Cow Body Measurements and Body Indices in Luxi Cattle

[目的]分析鲁西黄牛成年母牛体尺指标与体重的相关性,并进一步进行估测体重的回归分析,指导该品种牛的生产实际及选育工作。[方法]以山东省鲁西黄牛产区2006年测量的110条相关数据为基础,分析体重与体高、体长、胸围、管围的相关系数,构建估测鲁西黄牛成年母牛体重的回归模型。[结果]结果表明:体重与体高、体长、胸围、管围的相关系数分别为0.7510、.814、0.9090、.855;得到了2个估测体重的回归模型,估测值与实测值之间的相关程度分别为0.954和0.953,并根据2个模型用Visual Basic语言编写了鲁西黄牛体重计算程序。[结论]鲁西黄牛成年母牛体重与体高、体长、胸围、管围存在明显的线性关系。

Tne objective of the study is to analyze the correlation of adult cow body measurements and body weight in Luxi CaMe, and further predict the regression analysis of body weight, so as to guide the production practice and breeding work of the Luxi Cattle. Base on 110 Luxi cow measurements of Shandong province in 2006, Analyzed the related coefficient of body weight and body height, body length, heart girth, cannon circumference. Establish the forecast Luxi cow weight regression model. Tne result showed that the body weight and body height, body length, heart girth, cannon circtimference related coefficient are 0.751, 0.814, 0.909, 0.855; Get two forecast weight regression models, the coeffucient of forecast value and fact value is 0.954 and 0. 953. According to the two models write the calculate program of Luxi cow weight forecast with Visual Basic. Tne body weight of adult lard cow has significant linear relation with body height, body length, heart girth, cannon circumference.