›› 2008, Vol. 1 ›› Issue (10): 29-32.

• 动物营养与饲料科学 • 上一篇    下一篇

麦秸-苜蓿型全混合日粮阴阳离子平衡对绵羊血液生化指标及氮平衡的影响

杨亮1, 刘太宇1,2, 王艳玲1,石科1
  

  1. 1.河南农业大学牧医工程学院, 郑州 450002; 2.郑州牧业工程高等专科学校, 郑州 450008
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-10-20 发布日期:2008-10-20

Influence of Dietary Cation-Antion Balance on Parameters of Plasma and Nitrogen Metabolism of Sheep Fed a Wheat Stover and Alfalfa Based Diet

YANG Liang1, LIU Taiyu1,2, WANG Yanling1, SHI Ke1
  

  1. 1.Engineering College of Animal Husbandry and Veterinary Science,Henan Agricultural University,Zhengzhou 450002, China; 2.Zhengzhou College of Animal Husbandry Engineering, Zhengzhou 450008, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-10-20 Published:2008-10-20

摘要: 试验采用3×3拉丁方试验设计,选用6只绵羊,分为3组,通过饲养和消化试验来研究饲喂不同阴阳离子平衡的麦秸全混合日粮对绵羊血液生化指标及氮平衡的影响。结果表明,①随着DCAB的升高,各组之间血糖浓度变化差异不显著(P>0.05);血浆中尿素氮(PUN)随着DCAB的变化达显著水平(P<0.05),B组与A、C组相比血清尿素氮分别降低了24%和26%;各组血浆总蛋白受DCAB的影响不显著(P>0.05),其变化与尿素氮相反;各组血浆Ca、P受DCAB的影响不显著(P>0.05),随着DCAB水平的升高,血Ca浓度逐渐降低,B组血P浓度最高,A组次之,C组最小。②DCAB为 15 m Eq/100 g DM时,绵羊氮存留率最高,有利于对蛋白质的利用。

关键词: 血液生化指标; 氮平衡; 麦秸; 全混合日粮; 阴阳离子平衡; 绵羊

Abstract: In a 3×3 Latin square design, 6 chosen sheep were divided into 3 groups. The influence of different level of dietary cation-anion balance(DCAB)to parameters of plasma and nitrogen metabolism of sheep fed a wheat stover based TMR diet was researched by feeding and digesting test. The results suggested that the level of DCAB increasing, there were not significant difference between each two groups(P>0.05);concentrations of PUN changed obviously(P<0.05),compared to A and C, B decreased 24% and 26% respectively; contrary to the PUN, the total albumen of plasma present no distinct difference(P>0.05); there were not significant influence on the concentration of Ca, P of blood plasma(P>0.05), but the concentration of Ca decreased gradually, while the concentration of P of B was the highest value, A took the second place , C was the lowest. When the DCAB value was 15 mEq/100 g DM, the deposit rate of nitrogen was the highest, which was advantaged to the utilization of protein. 

Key words: parameters of plasma; nitrogen metabolism; wheat stover; total mixed ratin(TMR); cation-anion balance; sheep 

中图分类号: