不同日粮条件下添加维生素E对蛋种鸡繁殖性能的影响

The effects of vitamin E on reproduction performance in laying hens fed with different diets

本试验选择220日龄健康的伊莎父母代种鸡6000羽,随机分为8组,每组8个重复。Ⅰ、Ⅱ、Ⅲ、Ⅳ组为常规日粮组,分别添加维生素E 0、40、180、300 mg/kg;Ⅴ、Ⅵ、Ⅶ、Ⅷ组为非常规基础日粮,分别添加维生素E 0、40、180、300 mg/kg。通过8周饲养试验,测定不同剂量的维生素E对蛋种鸡受精率、死胎率、健雏率等的影响。结果表明:(1)常规日粮中添加180 mg/kg,非常规日粮中添加40、180 mg/kg和300 mg/kg维生素E可显著提高种蛋受精率;(2)在常规日粮中添加40～300 mg/kg,非常规日粮中添加300 mg/kg维生素E可显著降低死胎率;(3)在常规日粮中添加180～300 mg/kg维生素E,非常规日粮中添加300 mg/kg维生素E可显著提高孵化健雏率,且常规日粮显著优于非常规日粮。

In this study,6000 Isa tint cp layers of 220-day-old were selected and randomly divided into 8 groups with 8 replicates for each.Treatments involved the conventional diet groupⅠ（basal diet）,Ⅱ（basal diet with 40 mg/kg vitamin E）,Ⅲ（basal diet with 180 mg/kg vitamin E）,Ⅳ（basal diet with 300 mg/kg vitamin E）,Ⅴ（non-conventional diet）,Ⅵ（non-conventional diet with 40 mg/kg vitamin E）,Ⅶ（non-conventional diet with 180 mg/kg vitamin E）,Ⅷ（non-conventional diet with 300 mg/kg vitamin E）.The results were as follows：（1）conventional dietary with 180 mg/kg vitamin,non-conventional diet with 40～300 mg/kg of vitamin E significantly increased the rate of egg fertilization;（2）conventional diet with 40～300 mg/kg vitamin E,unconventional dirt with 300 mg/kg vitamin E significantly reduced the stillbirth rate;（3）conventional with dietary 180～300 mg/kg vitamin E,non-conventional dietary with 300 mg/kg of vitamin E significantly increased the hatchability,and conventional diet was significantly better than non-conventional diet.