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5 小肽添加水平对育肥牦牛养分表观消化率的影响

Table 5 Effects of dietary small peptides levels on nutrients apparent digestibility of fattening yaks (%)

项目 Items 小肽添加水平Addition levels of small peptide P值 P value 0 0.75% 1.50% 2.25% T L Q 有机物OM 64.91±0.86ab 63.34±2.25b 65.71±1.03a 67.13±1.55a 0.011 0.016 0.010 蛋白质CP 51.30±3.61b 50.71±3.81b 53.29±1.42ab 54.11±2.25a 0.025 0.006 0.019 酸性洗涤纤维ADF 47.11±2.60B 49.19±3.40B 53.04±3.83A 54.02±1.86A 0.002 <0.001 <0.001 中性洗涤纤维NDF 50.34±1.12C 51.55±1.52C 55.03±2.83B 58.62±0.76A 0.001 <0.001 <0.001 钙Ca 58.08±4.53 57.01±4.39 60.21±4.60 59.50±3.63 0.374 0.373 0.680 磷P 53.61±5.75 53.61±0.82 54.39±5.10 54.07±8.51 0.996 0.853 0.981