断奶日龄和日粮营养水平对陕北白绒山羊小肠 形态发育和消化酶活性的影响

曲星梅,薛复来,黄晓瑜,张宇,邢晓楠,张恩平

Effects of Weaning Age and Dietary Nutritional Levels on Intestinal Morphology and Activity of Digestive Enzymes in 6-Month-Old Shaanbei White Cashmere Goats

XingMei QU,FuLai XUE,XiaoYu HUANG,Yu ZHANG,XiaoNan XING,EnPing ZHANG

断奶日龄和日粮营养水平对陕北白绒山羊断奶羔羊生长性能的影响

Table 2 Effects of weaning days and dietary nutrition level on growth performance of weaned lambs in Shaanbei White Cashmere goats

项目 Items 组别 Groups SEM P值 P value I II III IV V VI 初始体重(54 d) Initial BW (kg) 10.80 10.55 10.40 10.85 10.97 10.82 1.57 0.92 结束体重 (180 d) Final BW (kg) 22.32B 23.10B 23.45B 21.57C 25.58A 24.22AB 1.10 0.01 平均日增重 ADG (g·d-1) 95.97c 104.58bc 108.75b 89.30d 121.80a 111.67ab 4.59 0.02 干物质采食量 DMI (g·d-1) 716.06C 767.25B 775.40B 726.58C 830.15A 779.72B 10.55 ＜0.001 耗料增重比F/G 7.45b 7.34b 7.15b 8.16a 6.81c 6.98c 0.23 0.04