摘要
基于以往的综述和研究性文章,本文对通过尿液分析评价反刍动物营养状态的3个指数进行了讨论和比较:相对于A:C比值而言,U:C比值不能够反映不同年份动物的营养限制情况,A:C比值和U:C比值均会因随机抽样的原因导致对动物营养状态的过高或过低估计,在一些物种中A:C比值不如PD:C灵敏。并对这些指数在今后研究中的应用进行了初步探讨。
Based on previous reviews and original researches, three indices used in evaluating ruminant nutritional status through urine were discussed and compared to urine, supported by creatinine ＇ s correction effect. Advantages and disadvantages of the indices were demonstrated： compared with A： C ratios, U： C ratios failed to indicate any difference in nutritional stress among winters; both A： C ratios and U： C ratios might cause over or under estimation of ruminant nutritional status, because of random sampling; in some species A ： C showed less sensitivity than PD： C. Also trends of future utlization of indices was prospect initially.
关键词
雪尿
反刍动物
嘌呤衍生物
尿素氮
肌酐
Snow - urine
Ruminant
Purine derivatives
Urea nitrogen
Creatinine
