旱养模式下饲养密度和公母配比对肉种鸭生产性能的影响

本研究旨在探讨旱养模式下不同饲养密度、不同公母配比对SM3樱桃谷种鸭生产性能的影响。选择24周龄产蛋期父母代SM3樱桃谷种鸭21600只。将试验鸭随机分为饲养密度调整为2、3、4、5、6只/m25组,每组3个重复,每个重复1200只,公母配比均为1:4.5,试验至48周龄结束。对存活率、产蛋率、种蛋合格率及42周龄种蛋受精率指标进行测定和分析,结果表明:在旱养条件下肉种鸭饲养密度以4只/m2最适宜。选择24周龄产蛋期父母代SM3樱桃谷种鸭14400只。将试验鸭随机公母配比为1:4、1:5、1:6、1:74组,每组3个重复,每个重复1200只,各组密度均为4.2只/m2,试验至65周龄结束。通过测定产蛋率、种蛋合格率和受精率,用与密度试验相同的分析方法,结果表明:1:5的公母性别比例为最佳配比。

Effect of Raising Density and Sex Ratio on Production Performance in Dry-breeding Meat Duck Breeders

The experiments were carried out to study the effects of density and sex ratio on production performance of Cherry Valley ducks.21 600 healthy meat ducks of 24 weeks of age were randomly allocated to 5 treatments with 3 replicates of 1 200 ducks per replicate,raising density of 5 treatments was 2,3,4,5,6 ducks per m2,respectively.The experiments ended at 48 weeks of age.By statistical analysis of survival rate,egg production rates,qualified egg rates and fertilization rates of 42 weeks of age,the results showed that the most suitable raising density in dry-breeding meat duck was 4 ducks per m2.14 400 ducks were randomly distributed to 4 treatments with different rates of male and female 1:4,1:5,1:6,1:7 respectively,each treatment had 3 replicates of 1 200 ducks per replicate.This experiments ended at 65 weeks of age.The results showed that the best sex ratio was 1:5.