苏尼特羊营养补偿初期钙、磷、氮代谢研究  

Study on Ca,P and N Metabolism of Sunit Ewes During the Initial Stages of Nutrition Compensatory

作　　者：苗志国[1] 候先志[2] 敖长金[2] 

机构地区：[1]河南科技学院动物科学学院,河南新乡453003 [2]内蒙古农业大学动物科学与医学学院,呼和浩特010018

出　　处：《湖北农业科学》2007年第4期600-602,共3页Hubei Agricultural Sciences

摘　　要：将45只处于妊娠后期(90～150d)的苏尼特母羊随机分成4组,以不同的营养水平(ME:0.20、0.33、0.44、0.86MJ·kg-1.W-0.75·d-1)分组饲养,分娩后进行补偿生长试验,研究妊娠后期不同营养限制程度的母羊在补偿初期(分娩后0～6周)对饲料中钙、磷以及氮的代谢规律。结果表明,受限制各组母羊在补偿初期,随着受限程度的降低,钙、磷平衡(g·d-1)值呈升高的趋势,氮平衡(g·d-1)值呈下降的趋势。In the study,forty-five sunit post-pregnancy ewes （90-150d） were divided randomly into four groups,and offered different nutrition level （ME：0.20,0.33,0.44,0.86MJ·kg^-1·W^0.75·d^-1）. After parturition,the compensatory growth was studied to investigate the metabolic laws of Ca,P and N of sunit post-pregnancy ewes of different nutrition restriction level during the initial stages of nutrition compensatory （0-6^th works after parturition）. The results showed that during the initial stages of nutrition compensatory the value of Ca and P balance increased,while the value of N balance decreased,with the decrease of the nutrition-restricted level.

关 键 词：苏尼特羊 补偿初期 钙平衡 磷平衡 氮平衡 

分 类 号：S826.89[农业科学—畜牧学] S815.4[农业科学—畜牧兽医]