钙缺乏对蛋鸭血清骨代谢指标的影响  

Effects of calcium-deficiency in diets on bone metabolism indicators of laying ducks

作　　者：王子轼[1] 刘海霞[1] 顾建红[2] 刘俊栋[1] 刘宗平[2] 

机构地区：[1]江苏畜牧兽医职业技术学院,江苏泰州225300 [2]扬州大学兽医学院,江苏扬州225009

出　　处：《畜牧与兽医》2008年第12期31-34,共4页Animal Husbandry & Veterinary Medicine

基　　金：国家自然科学基金资助项目(30440050,30571364);江苏省高校自然科学研究指导性计划项目(05KJD230074);江苏省高校“青蓝工程”骨干教师培养对象资助项目(苏教师[2005]12);泰州市“311工程”培养对象资助项目(2007年);江苏畜牧兽医职业技术学院资助项目(200503)

摘　　要：为了观察钙缺乏对蛋鸭骨代谢的影响,探讨钙缺乏性骨病发生的机理,将120只600日龄产蛋山麻鸭随机分为正常日粮组、1/2石粉组和1/4石粉组,连续饲养12周。结果发现钙缺乏可导致蛋鸭血清骨钙素水平下降,骨碱性磷酸酶(BALP)水平升高,Ⅰ型羧基端末肽(CTX-Ⅰ)水平升高。认为钙缺乏通过影响相关骨代谢因子分泌,使骨形态结构发生异常改变,最终导致骨骼矿化障碍。The objective is to investigate the effects of calcium on bone metabolism indicators in a model of calcium-deficient ducks. One hundred and twenty Shan-ma laying ducks were randomly allocated into three groups： normal calcium, half calcium carbonate and quarter calcium carbonate. All the ducks were fed with the above three diets for 12 weeks, respectively. Compared with the normal calcium group, the concentrations of serum bone alkaline phosphatase （BALP） and C-terminal telopeptides of type I collagen （ CTX- I ） in calcium-deficient ducks were significantly higher, and bone γ-carboxyglutamic acid （BGP） was significantly lower. The results indicated that dietary calcium-deficiency might decrease bone mineral content and inhibit the synthesis of bone matrix by regulating the secretion of bone metabolism indicators.

关 键 词：钙缺乏 骨钙素 骨碱性磷酸酶 I型羧基端末肽 

分 类 号：S852.21[农业科学—基础兽医学]