作 者：
王瑞雪;李金芝;赵国丽;李鹏;王雅春;史远刚
单 位：
新疆塔城地区种牛场;中国农业大学动物科技学院;宁夏大学农学院
关键词：
新疆褐牛种公牛;体尺指标;体重;相关系数
摘 要：
为探索新疆褐牛种公牛的生长发育规律,本研究通过对新疆褐牛种公牛主要体尺指标和体重进行连续19个月的追踪测定,分析了体重和主要体尺指标的相关性。结果表明,新疆褐牛种公牛的体重和主要体尺指标随着月龄的增长而逐步增长,体重生长曲线趋势明显,胸围、十字部高和体斜长的增长速度高于体高和管围的增长速度;十字部高、体高、胸围、体斜长、管围和体重之间的相关系数均达到极显著水平(P<0.01);对体尺和体重筛选变量进行多元线性回归分析,得到回归方程为:y=-1116.09916+6.48481x3+2.53006x4(式中,x3、x4分别为胸围和体斜长自变量)。
译 名：
Study on the Law of Growth and Development of Xinjiang Brown Bulls in Tacheng Prefecture
作 者：
WANG Rui-xue;LI Jin-zhi;ZHAO Guo-li;LI Peng;WANG Ya-chun;SHI Yuan-gang;School of Agriculture, Ningxia University;Tacheng Cattle Farm;College of Animal Science and Technology, China Agricultural University;
关键词：
Xinjiang brown bulls;;Body size index;;Body weight;;Correlation coefficient
摘 要：
To explore the law of growth and development of Xinjiang brown bulls, main body size index and body weight of Xinjiang brown bulls aged at 6~12 months were tested for 9 consecutive months, and correlation of main body size index and body weigh were analyzed.The results showed that main body size index and body weight of Xinjiang brown bulls increased gradually with the growth of months, and the growth curve of body weight was obvious. But the growth rate of chest circumference, body high at hinter quarter and body length were higher than that of body height in the front and circumference of cannon bone. The correlation coefficient between cross high, body height, chest circumference, body length, circumference of cannon bone and body weight were highly significant(P<0.01). Body size and body weight were analyzed with multiple linear regression by selecting variables,the regression equation obtained was: y?=-1116.09916 + 6.48481x3+ 2.53006,x 4X3, X4 were chest circumference and body length respectively.
