冬季添加β-甘露聚糖酶对白壳蛋鸡生产性能、蛋品质、血液指标的影响  

Effects of β-mannanase Supplementation in Winter on Production Performance,Egg Quality and Blood Parameters of White Shell Layers

作　　者：张俊妍[1] 华丽娜[1] 郑传威[1] 柴丽娜[2] 刘伟[2] 宁中华[1] 

机构地区：[1]中国农业大学动物科技学院畜禽育种国家工程实验室,北京100193 [2]中国农业大学涿州蛋鸡育种场,河北涿州072750

出　　处：《中国家禽》2015年第6期24-29,共6页China Poultry

基　　金：国家现代农业产业技术蛋鸡体系专项(CARS-41)

摘　　要：试验将4 800只45周龄健康白来航蛋鸡随机分为2组,试验组为豆粕型基础日粮+250 g/t和美酵素,对照组仅为基础日粮,其中鸡群在51周龄患有呼吸道疾病,以研究β-甘露聚糖酶对应激状态下白壳蛋鸡生产性能、蛋品质及血液指标的影响。结果显示,51周龄试验组的饲养日产蛋率、合格蛋率比对照组显著提高10.51%(P<0.01)、1.00%(P<0.05),破蛋率、死淘率分别降低1.04%(P<0.05)、0.07%;β-甘露聚糖酶可能有提高蛋壳重和蛋黄颜色作用,对提高蛋重、体重和血清白蛋白含量有一定促进作用。Four thousand and eight hundred 45-week-age White Leghorns were assigned to two treatments randomly,the experimental group was fed basal corn-soybean diet added with 250 g/t Hemicell and the control group was only fed basal diet. Layers were infected with winter respiratory illness at 51 weeks of age. The study was to evaluate the effect of β-mannanase on production performance,egg quality and blood parameters of white shell layers under stress state. The results showed that β-mannanase increased 51-week-age hen day laying rate and normal egg laying rate with 10.51%（P〈0.01）and 1.00%（P〈0.05）;Broken egg rate and mortality elimination rate were decreased by 1.04%（P〈0.05）and0.07%. And it may increase the eggshell weight and yolk color,and also had tend to improve egg weight,body weight and the content of the blood serum.

关 键 词：Β-甘露聚糖酶 蛋鸡 生产性能 蛋品质 血液指标 

分 类 号：S831.5[农业科学—畜牧学]