日粮中添加小肽对育肥牦牛生产性能和消化道PepT1 mRNA表达的影响

苗建军,彭忠利,高彦华,柏雪,谢昕廷

Effects of Dietary Small Peptides on Production Performance and Expression of PepT1 mRNA in Digestive Tract of Fattening Yaks

MIAO JianJun,PENG ZhongLi,GAO YanHua,BAI Xue,XIE XinTing

表4 小肽添加水平对育肥牦牛生产性能的影响

Table 4 Effects of dietary small peptides levels on production performance of fattening yaks

项目 Items	小肽添加水平Addition levels of small peptide				P值 P value
项目 Items	0	0.75%	1.50%	2.25%	T	L	Q
初重IBW (kg)	180.67±27.98	180.22±28.51	181.25±33.38	181.78±27.97	1.000	0.919	0.994
末重FBW (kg)	230.00±34.54	227.56±35.25	238.75±26.74	257.11±31.77	0.224	0.060	0.110
平均日增重ADG (kg·d^-1)	0.64±0.15B	0.61±0.13B	0.72±0.13B	0.91±0.09A	0.001	<0.001	<0.001
干物质采食量DMI (kg·d^-1)	4.84±0.59b	4.79±0.41b	5.12±0.44ab	5.48±0.56a	0.024	0.005	0.009
料重比F/G	8.07±1.72a	8.32±1.86a	7.35±1.59ab	5.95±0.72b	0.014	0.004	0.005