安格斯牛×大别山牛杂交牛生长发育特性和屠宰特性研究

目的]研究安格斯牛对大别山牛的杂交效果。方法]对安格斯牛×大别山牛杂交F1代(安—大F1)和大别山牛各24头进行了初生、6月龄、12月龄和24月龄体重和体尺性状测定,对照组和试验组各随机选择3头持续育肥至24月龄后进行了屠宰测定。结果]安—大杂交F1代牛具有较高的杂种优势,安—大杂交F1代牛初生、6月龄、12月龄、18月龄和24月龄体重和体尺指标均明显优于大别山牛;24月龄时安—大杂交F1代的宰前体重极显著高于大别山牛(P<0.01),胴体重和净肉重均显著高于大别山牛(P<0.05)。结论]用安格斯牛与大别山牛杂交,杂交效果明显,具有较高的推广及应用价值。

Study on the Meat Quality and Nutrition of Hybrid from Dabieshan Yellow Cattle and Angus Cattle

Objective] The effect of hybrids from Dabieshan cattle improved by Angus was studied.Methods] The body weight and body size traits of 24 Dabieshan cattle and its hybrids from Angus cattle were measured at birth, 6 months old, 12 months old and 24 months old respectively. Three cattle were randomly selected from two groups respectively, then they were fattened to 24-month-old under the same condition, and the slaughter traits were determined.Result] The results showed that F1 hybrids had higher heterosis, and its body weight and body size traits were higher than Dabieshan cattle, the slaughter weight was highly significant than Dabieshan cattle (P<0.01), the carcass weight and net meat weight were higher than Dabieshan cattle (P<0.05).Conclusion] The improvement effect on Dabieshan cattle hybrids by Angus was significant, which had high value of popularization and application.