舍饲新疆褐牛犊牛体重与体尺指标的相关及回归分析  

Correlation and Regression Analysis of Body Weight and Body Size Measurements for Xinjiang Brown Cattle Calf under Pen Feeding

作　　者：付雪峰[1] 季生林 黄锡霞[1] 程黎明[1] 郭志勤[3] 周光瑞 郭静[1] 周怀林[1] 

机构地区：[1]新疆农业大学动物科学学院,乌鲁木齐830052 [2]新疆乌鲁木齐种牛场,乌鲁木齐830002 [3]新疆畜牧科学院畜牧所,乌鲁木齐830000 [4]新疆畜禽繁育改良总站,乌鲁木齐830009

出　　处：《新疆农业科学》2009年第4期844-848,共5页Xinjiang Agricultural Sciences

基　　金：国家科技支撑计划项目(2006BAD04A01);新疆维吾尔自治区"十一五"重大专项"奶牛技术开发与集成示范"项目(200731134);农业部公益性行业(农业)科研专项(nyhyzx07-036-10);国家博管委博士后项目

摘　　要：以2008年2至7月在乌鲁木齐种牛场跟踪测量的272头1～6月龄新疆褐牛犊牛体尺、体重数据为基础材料,探索了舍饲新疆褐牛犊牛的生长规律,分析了其体重与体尺指标的相关性,构建了估测舍饲新疆褐牛犊牛体重的回归模型。结果表明:舍饲新疆褐牛犊牛随着月龄的增加,相对于其他几个性状,更趋向于胸围和体重的快速增长;舍饲新疆褐牛犊牛体重与体高、体斜长、胸围、管围的相关系数分别为0.927、0.913、0.964、0.851,经检验四个相关系数均达到极显著水平(P<0.01);得到了4个估测体重的多元线性回归方程,对于公犊估测值与实测值之间的相关程度分别为0.975和0.973,对于母犊估测值与实测值之间的相关程度均为0.977,均达到极显著水平(P<0.01)。In this paper body size and body weight data were collected from 272 calves from 1 to 6 months age in pen feeding Xinjiang Brown Cattle in Urumqi herd bull farm between February and July in 2008, based on this, the growth rules of pen feeding Xinjiang Brown Cattle was explored, and correlations between body weight and body size were analyzed. Meanwhile, regression model was established to predict the body weight of calves of pen feeding Xinjiang Brown Cattle. Results showed that the chest diameter and body weight of pen feeding Xinjiang Brown Cattle were increased with the increase of their month age. The four correlation coefficients of pen feeding Xinjiang Brown cattle including body weight, body height, body length, chest diameter and cannon circumference were 0.927,0.913,0.964,0.851 respectively. All correlations were highly significant （ P 〈 0.01 ）. Four regression equations of multiple linear were obtained, the degree of correlation between predicted and measured values were 0.975 and 0. 973 respectively for male calf, both were 0.977 for female calf, and all coefficients had a significant level （ P 〈 0.01 ）.

关 键 词：新疆褐牛犊牛 生长曲线 相关系数 回归模型 

分 类 号：S823[农业科学—畜牧学]