西×蒙F_2代犍牛与蒙古犍牛屠宰对比试验

Comparative Slaughter Tests on Bullock of F_2 Crossbreeding from Simmental and Mongolia and Mongolian Bullock

[目的]为探讨西门塔尔牛杂交改良蒙古牛的产肉性能及效果。[方法]对18月龄西×蒙F2代犍牛和蒙古犍牛进行屠宰对比试验。[结果]18月龄西×蒙F2代犍牛的平均活重、屠体重和净肉重分别达到511.67kg、291.21kg和233.51kg,较同月龄蒙古犍牛高出131.67kg、80.28kg和64.32kg;提高了34.65%、38.06%、和38.01%;差异均极显著(P<0.01);18月龄西×蒙F2代犍牛的平均屠宰率和净肉率分别提高了1.40%和1.12%,差异显著(P<0.05)。[结论]利用西门塔尔牛杂交改良蒙古牛效果显著,可以明显提高蒙古牛产肉性能。

[Objective]In this paper, the meat production performance effect of crossbreeding Simmen tal and Mongolian cattle was analyzed. [Method]Comparative slau an sire and F2 hybrids from Simmental and Mongolian cattle with weight, carcass weight and net meat weight of the F2 Mongolian cattle were 511.67 kg. 291.21 kg and 233.5 g 1 average live weight, carcass weight and net meat weight ghter test was 18 months old. carried between Mongoli- eneration with 18 months [Result]The average live age from Simmental and k9. Compared with the same age Mongolian sire, increased 131.67 kg. 80.28 kg and 64.32 kg,which were improved by 34.65%,38.06%,and 38.01% ; The average dressing percentage and net meat rate were improved 1.40~ and 1.12%, and the differences ment result of meat production performance was cattle. were significant （ P 〈0.01）. [Conclusion]The improve- obvious for crossbreeding of Simmental and Mongolian cattle.