畜牧与兽医2017，Vol.49Issue(5)：26-29,4.
晋南牛公牛与阉牛育肥性能和肉品质的比较研究
Comparative study on fattening performance and meat quality between Jinnan cattle bulls and steers
摘要
Abstract
The purpose of this experiment is to compare the fattening traits,slaughter performance and meat quality between Jinnan cattle bulls and steers.Twenty healthy bulls and steers at the similar age and body weight were chosen to perform intensive fattening experiment and to measure carcass traits including every meat parameter.The results showed that the average daily gain of bulls,liveweight,carcass weight and eye muscle area were significantly higher than steers (P＜0.05),while aged beef quality cutting rates were not different between treatments (P＞0.05).After 72 hours,shear force of steers was significantly better than those of bulls,marbling was significantly lower than those of bulls.The pH value,driage and meal color were not different (P＞0.05).The marbling grade of steers reached 3 grade that was close to standard high-grade beef.Therefore,Jinnan cattle can produce high-grade beef fattening by castration.关键词
晋南牛/阉牛/育肥性能/肉品质Key words
Jinnan cattle/steer/slaughter performance/meat quality分类
农业科技引用本文复制引用
张喜忠,杨效民,闫益波,王栋才,王曦,靳光,李博,徐芳,孙锐锋,孙晓晴..晋南牛公牛与阉牛育肥性能和肉品质的比较研究[J].畜牧与兽医,2017,49(5):26-29,4.基金项目
农业部公益性行业专项(201503134) （201503134）
牛高产低排营养调控山西省科技创新培育团队建设(201605D131043) （201605D131043）
山西省科技攻关项目(20120311021-1,20130311024-1) （20120311021-1,20130311024-1）
山西省农科院攻关项目(YGG 1508) （YGG 1508）
