【摘要】 引进西门塔尔种公牛在攀枝花市二半山区开展杂交改良示范,3年累计产西本F1代犊牛255头。测定体尺、体重指标分析,结果表明:6月龄和12月龄段,西本F1与本地黄牛的体重、体高、胸围、体斜长、管围差异极显著(P<0.01),而腰角宽差异不显著(P>0.05);6月龄段的西本F1比本地黄牛增重48kg,头均增收1 344元,12月龄段西本F1比本地黄牛增重64.8kg,头均增收1 806元。说明西门塔尔牛做父本改良本地黄牛杂交优势明显,可在攀枝花市二半山区黄牛杂交改良中推广应用。更多还原

【Abstract】 Simmental breeding oxens were introduced into Pazhihua city to improve the breeding performance of local cattles. A total of255 calves for F1 generation given birth for last three years. The measurements of body and weight of 6 and 12 month calves showed the difference between F1 generation and local cattle is signifcant( P <0. 01) for the indexes of weight,height,chest circumference,body slanting length and cannon circumference,while for the index of width of hips showed insignificant difference. The weight of 6 and 12 month old F1 generation is 48 kg and 64. 8kg higher than local cattle,indicating using simmental breeding oxen can significantly improve the breeding performance of local cattle.更多还原