饲粮淀粉来源对肉仔鸡淀粉消化和肠道发育的影响  

EFFECT OF DIETARY STARCH SOURCE ON STARCH DIGESTIBILITY AND INTESTINAL DEVELOPMENT OF BROILER CHICKENS

作　　者：李敬[1] 苏玲[1] 田亚东[1,2] 蒋瑞瑞[1,2] 孙桂荣[1,2] 康相涛[1,2] 

机构地区：[1]河南农业大学牧医工程学院,郑州450002 [2]河南省家禽种质资源创新工程研究中心,郑州450002

出　　处：《营养学报》2012年第4期340-343,348,共5页Acta Nutrimenta Sinica

基　　金：河南省科技攻关项目(No.082102130032)

摘　　要：目的研究饲粮淀粉源对肉仔鸡生长性能、淀粉消化性能以及肠道发育的影响。方法选取360只1日龄AA肉仔鸡健雏,随机分为3个处理组,分别饲喂3种不同淀粉来源饲粮(玉米、小麦、碎米),每个处理6个重复,饲养至28 d,分离肠道,测定各肠段长度,肠道内容物淀粉含量及饲料淀粉含量。结果不同淀粉源饲粮对试验期末肉仔鸡体重、平均日增重和采食量影响显著(P<0.05);碎米组饲粮在肉仔鸡小肠中的停留时间(152.76 min)显著高于玉米饲粮组(126.17 min)和小麦饲粮组(133.30 min)(P<0.05),淀粉消化速率低于玉米组(1.97 h-1)和小麦组(1.57h-1);碎米组十二指肠、空肠、回肠长度均低于玉米和小麦组。结论不同淀粉源饲粮引起了肉仔鸡早期生长性能,淀粉消化能力和肠道发育情况的变化。[营养学报,2012,34(4):340-343,348]Objective To investigate the effect of dietary starch source on starch digestibility and intestinal development of broiler chickens.Method Three hundred and sixty one-day-old AA broiler chickens were randomly assigned to 3 groups,with 6 replications in each group,and fed corn,wheat and rice diets respectively.Dietary starch contents were determined,and intestines were isolated to determine its size and starch content.Results Dietary starch source significantly affected the body weight,average daily weight gain and feed intake of the chickens（P0.05）.The broilers in rice group had significantly higher mean retention time in intestine（P0.05） but lower starch digestibility and intestinal size than in wheat group and corn group.Conclusion Different dietary starch source led to different growth performance,starch digestibility and intestinal development of broiler chickens.

关 键 词：淀粉来源 肉仔鸡 生长性能 淀粉消化率 肠道发育 

分 类 号：S831.5[农业科学—畜牧学]