高山美利奴育成羊的能量与蛋白质需要量

王晨,张宏伟,王虎成,孙晓萍,李发弟,杨博辉

Energy and Protein Requirements of Alpine Merino Growing Sheep

WANG Chen,ZHANG HongWei,WANG HuCheng,SUN XiaoPing,LI FaDi,YANG BoHui

表2 饲喂水平对高山美利奴育成羊生长性能的影响

Table 2 Effects of feed intake level on growth performance of Alpine Merino growing sheep

性别 Gender 项目 Items 组别 Groups SEM P AL IR80 IR60 IR40 育成公羊 Growing male sheep 初重 IBW (kg) 52.33 51.66 49.75 51.17 0.44 0.231 末重 FBW (kg) 59.30a 56.70a 51.40b 48.17b 1.11 <0.001 平均日增重 ADG (g·d-1) 242.65a 172.06bc 51.47d -95.59e 33.84 <0.001 干物质采食量 DMI (kg·d-1) 2.56a 2.18b 1.66c 1.09d 0.12 <0.001 料重比 F/G 9.09b 12.40b 31.09a 11.26c 4.60 <0.001 育成母羊 Growing female sheep 初重 IBW (kg) 40.17 40.33 39.28 40.08 0.73 0.964 末重 FBW (kg) 42.42a 42.42a 39.17ab 36.75b 0.76 0.009 平均日增重 ADG (g·d-1) 187.50a 115.91a -5.68b -153.41c 34.99 <0.001 干物质采食量 DMI (kg·d-1) 1.97a 1.68b 1.26c 0.85d 0.09 <0.001 料重比 F/G 9.57ab 11.78a -18.23c -4.55bc 3.42 <0.001