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为了研究三河牛各体尺指标与体重之间的关系,试验应用SAS 9.0和Excel 2007软件分析2011—2015年出生的781头三河牛初生体尺、体重及二者的相关性。结果表明:三河牛体尺随着体重的增加逐渐增大,其中体斜长和腹围与体重的相关系数分别为0.99,0.98,三河牛的管围与体重、体斜长、体高、胸围和腹围之间的相关都达到了极显著水平(P<0.01)。说明三河牛在60~69 kg体重时,体尺迅速增长;三河牛体尺指数与体重存在密切相关性。
In order to study the relationship between body mass index and body weight of Sanhe cattle, the SAS 9.0 and Excel 2007 softwares were used to analyze the body mass, body weight and their correlation of 781 Sanhe cattle born in 2011-2015. The results showed that the body length of Sanhe cattle increased with body weight increasing. The correlation coefficient between body length and abdominal circumference and body weight were 0.99 and 0.98 respectively. The body circumference and body weight, body length, body height, The correlation between abdominal circumference reached an extremely significant level (P <0.01). The results showed that the body size of Sanhe cattle increased rapidly when the body weight was 60-69 kg. The body mass index of Sanhe cattle was closely related to body weight.