摘要
40周龄伊莎蛋鸡200只,随机分为4组,分别饲喂基础日粮(I组),添加锌100mg/kg(Ⅱ组),1000mg/kg(Ⅲ组)和酵母锌40mg/kg(Ⅳ组)。饲喂60日后,I组、Ⅱ组、Ⅲ组和Ⅳ组鸡蛋中的锌含量分别为10.61、18.31,21.27和23.71μg/g。Ⅱ组产蛋率明显上升(P<0.05),破壳率明显下降(P<0.05);Ⅲ组和Ⅳ组产蛋率显著增加(P<0.01),玻壳率和料蛋比显著下降(P<0.01),同时试验鸡无异常表现,解剖后组织器官也无病理变化,实验表明,通过对蛋鸡饲喂高锌日粮增加蛋中的锌含量效果显著。
00 1aying hens(40 weeks
old)were randomly, divided-into 4 groups。Each group was fed with a control diet,while groups
Ⅱ andⅢwere sup-plemented with 100 mg/kg and 1000 mg/kg of zinc sulfate respectivelv。
Gro-up Ⅳ was supplemented with 40/kg yeast zinc,At the end of 60 days pe-riod,the eggs of
group I、Ⅱ、Ⅲ and Ⅵ were assaved to contain 10.61。18.31,21.27 and 23.71μg/g of zinc
respectively。Performance of the laverswas better with zinc supplementation。No pathological
change was obser-ved。
出处
《营养学报》
CAS
CSCD
北大核心
1995年第3期308-312,共5页
Acta Nutrimenta Sinica
关键词
锌
蛋鸡
生产性能
生化指标
zinc laying hen performance hiochemical parameters