›› 2009, Vol. 36 ›› Issue (11): 5-8.

• 动物营养与饲料科学 •    下一篇

不同尿素添加水平对青年母水牛尿中嘌呤衍生物排出规律的研究

庞春英1,邹彩霞1,李丽莉1,梁坤1,韦升菊1,李舒露1,杨炳壮1,白剑飞2,夏中生2,梁贤威1   

  1. (1.中国农业科学院广西水牛研究所, 南宁 530001, 2.广西大学动物科技学院, 南宁 530005)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-11-20 发布日期:2009-11-20
  • 通讯作者: 梁贤威

Effect of Different Urea Addition in Ration on Excretion of Urinary Purine Derivatives in Young Buffalo

PANG Chun-ying1,ZOU Cai-xia1,LI Li-li1,LIANG Kun1, WEI Sheng-ju1,LI Shu-lu1, YANG Bing-zhuang1,BAI Jian-fei2, XIA Zhong-sheng2,LIANG Xian-wei1   

  1. (1.Buffalo Research Institute, Chinese Academy of Agriculture Sciences, Nanning 530001,China;2.Animal Sci&Tec College of Guangxi University, Nanning 530005,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-11-20 Published:2009-11-20
  • Contact: LIANG Xian-wei

摘要: 试验选取3头24月龄左右,体重相近的健康青年母水牛,采用随机区组试验设计,分别饲喂基础日粮+15 g/d尿素(处理A)、基础日粮+30 g/d尿素(处理B)和基础日粮+45 g/d尿素(处理C)组合的试验日粮。结果表明,随着尿素用量的增加,粗蛋白质采食量明显提高,营养物质的表观消化率、氮沉积率和氮的表观消化率均以处理B组最高,且与其它处理组差异显著(P<0.05);尿中嘌呤衍生物的排出量仍以处理B组最高,与其它组差异不显著(P>0.05);肌酸酐的排出量稳定在40 mmol/d左右,各处理间无显著差异(P>0.05)。由此说明,适量添加尿素有利于青年母水牛营养物质消化率的提高、氮的沉积和微生物氮的合成,而过量添加反而降低其添加效果。

关键词: 青年母水牛; 尿素; 嘌呤衍生物

Abstract: Three buffalos(24-month-old) was used for three period digestive-metabolism trial, three treatments were concentrate 3 kg+elephant-grass 16.6 kg+15 g urea(A group);3 kg +elephant-grass 16.6 kg+30 g urea(B group);3 kg +elephant-grass 16.6 kg+45 g urea(C group).The results showed that with the urea addition in ration increased,the apparent digestibility of the the feed nutrients,nitrogen balance and N apparent digestibility in treatment B were best(P<0.05);urinary excretion of PD no significant difference between treatment(P>0.05);urinary excretion of creatinine was not significantly affected by urea addition in ration and the number stabilized at about 40 mmol/d(P>0.05).

Key words: young buffalo; urea; purine derivatives

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