早期断奶和育肥期饲粮NDF水平对湖羊生长性能和消化代谢的影响

黄文琴,吕小康,庄一民,崔凯,王世琴,刁其玉,张乃锋

The Effects of Early Weaning and NDF Levels of Finishing Diets on Growth Performance, Nutrient Digestion and Metabolism of Hu Lambs

HUANG WenQin,LÜ XiaoKang,ZHUANG YiMin,CUI Kai,WANG ShiQing,DIAO QiYu,ZHANG NaiFeng

表3 早期断奶和育肥期饲粮NDF水平对湖羊采食量（干物质基础）和饲粮转化率的影响

Table 3 Effects of early weaning and dietary NDF levels on intakes（dry matter basis）and feed conversion rate of Hu lambs

项目 Items	日龄 Days of age	组别 Groups				SEM	P
项目 Items	日龄 Days of age	EW-LL	EW-LH	EW-HH	ER-HH	SEM	P
代乳粉采食量 Milk replacer intakes (g·d^-1)	21-45	109.74	108.17	108.88	-	-	-
开食料采食量 Starter intakes (g·d^-1)	21-45	283.90a	271.37a	298.76a	153.43b	14.37	0.000
	46-65	665.78	662.52	712.13	605.20	19.19	0.283
	21-65	474.84a	466.95a	505.45a	379.31b	15.60	0.017
干物质采食量DMI (g·d^-1)	66-120	823.43	801.96	918.77	824.83	20.27	0.174
	121-180	1417.02a	1119.32b	1168.14b	1124.56b	43.28	0.048
	66-180	1054.16	956.11	1039.89	970.41	29.66	0.590
NDF采食量 NDF intakes (g·d^-1)	66-120	271.74b	264.65b	333.75a	293.61ab	7.59	0.001
NDF采食量 NDF intakes (g·d^-1)	121-180	399.49	374.07	390.39	375.83	11.79	0.876
饲粮转化率 FCR	66-120	3.63	4.18	3.66	3.37	0.19	0.534
饲粮转化率 FCR	121-180	4.39	4.18	5.07	5.19	0.23	0.350