肉用、乳肉兼用西门塔尔牛与河北本地西杂牛杂交效果分析

Analysis of Crossbreeding Effects between meat-dairy and dairy-meat dual purpose Simmental with Hebei Local Simmental Crossbred Cattle

中文关键词: 河北省  肉乳兼用型  乳肉兼用型  西门塔尔牛  生长发育性状

英文关键词: Hebei Province, meat-dairy, dairy-meat, Simmental, growth and development traits

中文摘要:

      ［目的］本研究旨在探究肉乳兼用型和乳肉兼用型西门塔尔牛与河北省本地西杂牛杂交的改良效果，为河北省培育优质肉牛提供参考。［方法］本研究采用肉乳兼用型西门塔尔牛（MD）冻精与乳肉兼用型西门塔尔牛（DM）冻精与河北省本地西杂母牛进行杂交，测定其后代的生长发育指标，对两种杂交后代的生长发育性状进行比较分析。［结果］MD杂交后代的初生、3月龄、6月龄及12月龄体重均大于DM杂交后代，但结果差异不显著；日增重随着月龄增加而逐渐下降，其中除4~6月龄时DM杂交后代母牛日增重大于MD杂交后代母牛外，其余时期MD杂交后代的日增重均大于DM杂交后代；MD杂交后代胸围和腹围大于DM杂交后代，体高、十字部高及体斜长小于DM杂交后代。［结论］本研究中肉乳兼用型杂交后代较乳肉兼用型杂交后代具有更好的生长发育性能，但差异不显著。

英文摘要:

      [Objective] This study aimed to investigate the effect of crossbred cows between meat-dairy Simmental, dairy-meat Simmental and Hebei local hybridized, and to provide reference for breeding quality beef cattle in Hebei Province. [Method] In this study, the frozen semen of meat-dairy Simmental (MD) and dairy-meat Simmental (DM) were crossed with local Simmental crossbred cattle in Hebei Province to determine and compare the growth and development indexes of their offspring. [Result] The weight of 0, 3, 6, 12 months old of MD hybrid offspring were all higher than the DM hybrid offspring, but the difference was not significant. The average daily weight gain (ADG) decreased with age. The ADG of MD hybrid offspring were greater than that of DM, except the ADG of the heifers of DM at 4 to 6 months were greater than the MD. The chest girth and abdomen circumference of MD hybrid offspring were larger than the DM hybrid offspring, but the body height, hip cross height and body length were smaller than those of the DM hybrid offspring. [Conclusion] In this study, the MD hybrid offspring had better growth and development performance than the DM hybrid offspring, but the difference was not significant.