【摘要】 选择 16头泌乳奶牛 ,采用对比试验设计方法将其随机分为 4组 ,以测定泌乳奶牛日粮中添加磷酸脲的效果试验。试验结果表明 ,各组泌乳奶牛的产奶量、乳中营养物质含量差异不显著 (P >0 .0 5 ) ,日粮中各营养物质只有粗蛋白质的消化率差异显著 (P <0 .0 5 )。更多还原

【Abstract】 Sixteen milking stocks were selected and randomly divided into 4 groups for a comparative feeding trial to investigate the effect of adding urea phosphate into their diet. The result showed that there were no significant differences in the milk production and milk nutrients (among) each of the groups (P>0.05) except for the large difference in CP digestibility (P<0.05).更多还原