日粮添加绿茶末对罗曼蛋鸡生产性能、血浆生化指标以及蛋黄胆固醇含量的影响  

Effect of Green Tea Powder on Production Performance, Serum Biochemistry Index and Yolk Cholesterol Content in Laying Hens

作　　者：周岭[1] 张扬[1] 丁雪梅[1] 彭焕伟[1] 王建萍[1] 张克英[1] ZHOU Ling ZHANG Yang DING Xuemei PENG Huanwei WANG Jianping ZHANG Keying(Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural Univerisity, Chengdu, Sichuan 611130)

机构地区：[1]四川农业大学动物营养研究所,动物抗病营养教育部重点实验室,四川成都611130

出　　处：《中国家禽》2017年第14期29-32,共4页China Poultry

基　　金：国家科技支撑计划项目(2014BAD13B04);四川省科技支撑计划项目(2014NZ0043、2014NZ0002)

摘　　要：试验旨在研究不同比例的绿茶末对蛋鸡生长性能、血浆生化以及蛋黄胆固醇含量的影响,并确定绿茶末的适宜添加量。试验采用单因子完全随机设计,共选取640只39周龄健康罗曼蛋鸡,按产蛋率无差异原则随机分为4个处理,每个处理8个重复,每个重复20只鸡,分别饲喂含0、0.5%、1%、2%绿茶末的日粮,试验期为49 d。结果显示:添加0.5%绿茶末对试验鸡生产性能无影响;与未添加组相比,1%和2%添加组产蛋率均极显著降低(P<0.01),2%添加组采食量极显著降低(P<0.01),蛋重显著降低(P<0.05)。1%和2%添加组死亡率提高;绿茶末的添加对于血浆甘油三酯、胆固醇、高密度脂蛋白水平均没有显著影响(P>0.05),添加0.5%和1%绿茶末可显著降低鸡蛋胆固醇含量(P<0.05)。研究表明:饲粮添加0.5%绿茶末不影响蛋鸡生产性能和血浆生化指标,能显著降低鸡蛋胆固醇含量。This experiment was conducted to evaluate the effect of green tea powder on production performance, serum biochemical index and yolk cholesterol content in laying hens. The experiment adopted one-factor completely random design. A total of 640 39-week-age Lohmann laying hens were randomly allotted into 4 groups with 8 replicates and 20 birds per replicate, the basal diets of which were supplemented with 0, 0.5%, 1% and 2% of green tea powder, respectively. The results showed that supplementation of 0.5% of green tea powder had no significant effect on production performance （P〉0.05）. Compared with the control group, the laying rates of 1% and 2% green tea power group were markedly decreased （P〈0.01）, average daily feed intake of 2% green tea power group was markedly decreased （P〈0.01）and egg weight was significantly decreased （P〈0.05）. The mortality rates of 1% and 2% green tea power group were increased. There were no significantly effect of dietary green tea powder on serum triglyceride, cholesterol and high density lipoprotein level （P〉0.05）. Yolk cholesterol contents of 0.5% and 1% green tea power group were significantly decreased （P〈0.05）. It＇s suggested that dietary 0.5% green tea powder had no significantly effect on production performance and serum biochemical index, but could decrease yolk cholesterol content.

关 键 词：蛋鸡 绿茶末 血浆生化指标 蛋黄胆固醇 

分 类 号：S831.5[农业科学—畜牧学]