摘要
目的:选择凤阳本地不同年龄段皖东黄牛60头,进行体尺测量和体重测定。确定最佳估测黄牛体重的回归方程。方法:利用黄牛体尺数据,建立体高(x1)、体斜长(x2)、胸围(x3)、胸宽(x4)等4个指标与体重的多种回归方程,通过EXCEL及SPSS程序处理数据,建立多个回归方程,选择精确性最高的回归方程作为皖东牛体重估测方法。结果:用单一体尺估测皖东黄牛体重的精确度均不高,用四种体尺数据估测皖东黄牛体重较为精确。结论:用四种体尺与体重关系建立的多元回归方程估测皖东黄牛体重精确度最高,R2为0.969。
Objective: 60 Wandong cattles of different ages in Fengyang County were selected for body size measurement and body weight measurement, and to estimate the body weight of cattle. Methods: Multiple regression equations of body height (x 1), body oblique length (x 2), chest circumference (x 3), chest width (x 4) and body weight were established to determine the best regression equation for by using the scale data of cattle and processing the data with EXCEL and SPSS program. Results: The accuracy of single body rule to estimate the weight of Wandong cattle is not high. Four kinds of body size data were used to estimate the body weight of Wandong cattle accurately. Conclusion: The multivariate regression equation based on the relationship between body size and body weight is the most accurate to estimate the body weight of Wandong cattle, R 2 is 0.969 .
作者
蔡治华
许金根
车传燕
宁康健
闻爱友
戴四发
CAI Zhihua;XU Jingeng;CHE Chuanyan;NING Kangjian;WEN Aiyou;DAI Sifa(College of Animal Science, Anhui Science and Technology University, Fengyang 233100, China)
出处
《安徽科技学院学报》
2019年第4期1-4,共4页
Journal of Anhui Science and Technology University
基金
安徽省肉牛产业体系项目(ZRC2014439)
安徽省重点研发计划项目(201904f06020004)
关键词
皖东黄牛
体高
体斜长
胸围
胸宽
体重
Wandong cattle
Body height
Body oblique length
Chest circumference
Chest width
Weight
