大庆DHI体系的建立

摘要

本研究对大庆DHI数据进行整理,采用国际TOP25方法获取目标值及SAS回归模型方法对数据进行分析,获得大庆地区不同胎次牛群的目标值与泌乳曲线;并结合以色列DHI数据,建立大庆地区DHI体系;比较本地区与以色列的差异,以期提高DHI报告的准确性.%With the international Top 25 method to obtain the target Value and using the SAS regreression model, DHI data of area were analyzed in this study .The target value and lactation curve of different parity in Daqing was obtained,and, DHI standards in Daqing was established combining with Isral DHI differences between this standard and Isral standard were compared in oder to improve the accuracy of DHI reports.