蜀宣花牛9分制体型线性评定方法分析

Study on Body Size and 9-point System Linear Evaluation Method of Shuxuanhua Cattle

为强化蜀宣花牛群体的选育和选配,极大地提升我国南方牛业乃至整个畜牧业的核心产能,采集蜀宣花牛核心群344头成年母牛的27项体尺指标,分析其性状间的相关性,利用自主建立的蜀宣花牛9分制的体型线性评定方法对群体进行了评价分析。结果表明,蜀宣花牛整体结构和肌肉度指标存在相关性,泌乳性能部分指标存在相关性。通过评定发现后乳房宽度、乳房平衡性和乳头位置在群体中的均匀度较差,存在选育提升的空间。

In order to strengthen the breeding and matching of Shuxuanhua cattle and greatly enhance the core production capacity of cattle industry and even the whole animal husbandry in southern China,27 body size traits of 344 adult cows in the core group of Shuxuanhua cattle were collected,and the correlation between the traits was analyzed,the self-established Shuxuanhua cattle 9-point body size linear evaluation method was used to evaluate and analyze the population.The results showed that there was a correlation between the overall structure and muscle index of Shuxuanhua cattle,and there was a correlation between some indicators of lactation performance.The uniformity of breast width,breast balance and nipple position in the population was found to be poor after evaluation,and there was room for improvement in breeding.