摘要
成年羯羊 ,一岁羯羊、当年羯羔体重变化均呈单峰值曲线 ,峰值都在 1 0月份 ,最大体重分别为 52 .43± 2 .56kg,40 .92± 4.0 5kg和 30 .65± 1 .30 kg;体重月均下降率分别为1 .61 % ,0 .93%和 0 .84% ;影响成年羯羊日增重的主要限制性因素是温度 ;从草地营养方面来看 ,影响绵羊日增重限制性因素的关联度排序为 CP>ME浓度 >CF>NFE>ASH;在绵羊消化代谢方面 ,其主要限制性因素的关联度排序为 :采食量 >消化率 >瘤胃氨氮量 >N存留率 >体重 ;影响放牧绵羊日增重的气候因素排序为 :温度 >风速 >湿度。
Weight dynamic of the adult weter, wether hog, wether hogg showed a curve line of a single peak, Maximum values appeared in October, which were 52.43±2.56 kg, 40.92±4.05 kg, 30.65±1.30 kg, respectively, The mean decreasing rate of weight were 1.61%, 0.91%, 0.84%, respectively; The tempreature was the main affecting factor affecting the day increase weight of grazing sheep, crude protein level in the diet played a inferior role.
出处
《家畜生态》
2000年第4期1-4,共4页
Ecology of Domestic Animal
基金
国家自然科学重点基金资助项目! ( 39630 2 50 )
