摘要
选择纯种南阳牛公牛1 头,皮埃蒙特杂公牛 2 头,契安尼娜杂公牛 2 头,在日粮成份、用量相同(或相似)的情况下进行为期 244 天的育肥,结果南阳牛、皮杂牛和契杂牛平均日增重分别为906g/d,960 g/d 和1170 g/d,屠宰结果:南阳牛 、契杂牛和皮杂牛的屠宰率分别为 61.0% 、58.0% 和 61.8% ;瘦肉率依次为 41.5% 、40.9% 和42.1% ;眼肌面积分别为88.5cm 2、91.7cm 2 和141.0cm 2;背最长肌面积三个牛种的性能接近,肉的嫩度评分,南阳牛、契杂牛和皮杂牛分别为 6.43 分、5.14 分和 5.86 分。
One Nanyang bull(NB),two Piemontese hybrid bulls (PHB)and two Chianina hybrid Bulls (CHB) are selected to fatten during 244-day period with the same ration components and amount (or almost the same).Results show that NB,PHBand CHB respectively have an average daily weight gain of 906,960.and 1170g/d;yield percentage 61.0,58.0 and 61.8%;lean percentage 41.5,40.9 and 42.1%;area of eye muscle 88.15,91.7 and 141.0cm 2;score for tanderness 6.43,5.14 and area of back muscle almost the same.
出处
《黄牛杂志》
1999年第4期20-22,共3页
Journal of Yellow Cattle Science
关键词
育肥
屠宰率
改种
皮埃蒙特牛
契安尼娜牛
肉牛
Fattening test,Aaverage daily weight gain, Yield percentage,Area of eye muscle,Piemonte, Chianina