蛋白质水平对肉牛屠宰指标的影响

Effect of Protein Level on Slaughter Index of Beef Cattle

[目的]探讨不同蛋白质水平对肉牛屠宰指标的影响。[方法]选用5个营养水平的精料补充料配方,分别饲喂5个试验组肉牛,并与对照组进行比较。[结果]饲喂粗蛋白水平较高的精料补充料有利于胴体脂肪的沉积和眼肌面积的增大,有利于肉牛的胴体测量指标的提高。蛋白质水平对脏器重量的影响主要集中在头、皮、肝、肾、胆囊、膀胱和横膈膜,对消化器官重、心重、肺重、脾重的影响没有发现规律性。[结论]提高肉牛屠宰指标可以通过补充蛋白质来实现。

【Objective】 For the purpose of different protein level effect on beef cattle slaughter index.【Method】 Five levels of protein feed stuff were designed and fed 5 groups of beef cattle and compared with no protein group as control.【Result】The beef carcass fat and eye muscle erea were larger when fed higher protein level,and which improved the carcass quality and carcass measure index.The protein level influenced the weight of organs mainly on head,skin,liver,kidney,gallbladder,bladder and diaphragm.There was no regular effect on the weight of digestion system,heart,lung,spleen.【Conclusion】The increase of beef cattle slaughter index could be achieved by the way of complement protein.