早期限饲对肉鸡补偿生长的影响  

Effect of Early Feed Restriction Compensatory growth of Broilers

作　　者：俞伟辉[1] YU Weihui(lueyang Professional Technology Institute,Hunan Yueyang 414000,China)

机构地区：[1]岳阳职业技术学院,湖南岳阳414000

出　　处：《家禽科学》2021年第7期5-12,共8页Poultry Science

基　　金：湖南省科学技术厅一般课题“早期限饲对肉鸡蛋白质周转代谢的研究与推广应用”,编号:2014NK4065。

摘　　要：试验旨在研究不同时间、不同限饲水平对肉鸡补偿生长的影响。试验选取0日龄健康状况良好的艾维茵雏鸡330只,随机分为4个试验处理组,除对照组外,其余3个试验处理组各设三个限饲水平,每组3个重复(对照组为6个重复),每个重复10只鸡。结果表明:11~17日龄限饲最好,其最佳限饲水平为47%(R2=0.9051);5~11、8~14日龄最佳限饲水平为14%;超过29%时,49日龄不能获得完全补偿生长(R^(2)=0.5913);限饲改善饲料利用率,随着限饲水平提高而提高(R2=0.966),30%的限饲水平显著提高饲料利用率(P<0.05)。结论:5~11、8~14日龄最佳限饲水平为14%;限饲可降低肉鸡总死亡率。This experiment was conducted to study the effects of different time and different feeding restriction levels on compensated growth,feed family rate and mortality of broilers・A total of 3300-day-old Avian chicks with good health conditions were randomly divided into 4 treatment groups.Except for the control group,the other 3 treatment groups were set with 3 restricted feeding levels,and each group had 3 replicates(the control group had 6 replicates)with 10 chicks per replicate.The results show that:The best feeding restriction level was 47%(R^(2)0.9051)at the age of 11-17 days;The optimal feed restriction level of 5-11 and 8-14 days old was 14%.When the feed restriction level was more than 29%,49 days old could not get full compensatory growth(R2=0.5913).Feed restriction improved feed utilization rate,which increased with the increase of feed restriction level(R2=0.966).30% feed restriction level significantly improved feed utilization rate(P<0.05).Conclusion:The optimal feeding restriction level was 14%at 5-11 and 8-14 days of age;Restricted feeding reduces total mortality of broilers.

关 键 词：限饲 肉鸡 补偿生长 

分 类 号：S831.4[农业科学—畜牧学]