摘要
试验旨在研究在产蛋鸡饲粮中添加丁酸梭菌和丁酸钠对不同品种产蛋鸡产蛋率、鸡蛋雀斑、暗斑以及蛋品质的影响。选择270日龄狼山鸡、芦花鸡、北京油鸡各320只,随机分成2组,每组8个重复,每个重复20只鸡,对照组(CON)饲喂基础饲粮,试验组(EXP)饲粮中添加100 mg/kg丁酸梭菌+500 mg/kg丁酸钠。预饲期3 d,试验期为5周。试验结果表明,与对照组相比,①试验组狼山鸡、芦花鸡、北京油鸡产蛋率分别提高12.5%、12.0%和24.9%(P<0.01);②试验组狼山鸡鸡蛋雀斑3级率下降34.2%(P<0.05),芦花鸡和北京油鸡鸡蛋各级雀斑率均无显著差异(P>0.05),狼山鸡、芦花鸡、北京油鸡鸡蛋各级暗斑率均无显著差异(P>0.05);③试验组狼山鸡蛋重降低1.7%(P<0.05),蛋形指数增加2.3%(P<0.05);芦花鸡蛋重增加1.5%(P<0.05);北京油鸡蛋白高度增加13.9%(P<0.05),哈氏单位增加4.7%(P<0.05)。综上,在产蛋鸡基础饲粮中添加一定量的丁酸梭菌和丁酸钠,可以提高狼山鸡、芦花鸡、北京油鸡产蛋率,对改善狼山鸡鸡蛋的雀斑也有一定的作用,且有助于提高芦花鸡、北京油鸡的蛋品质。
The aims of this experiment was to study the effects of Clostridium butyricum and sodium butyrate on egg production rate,freckles,dark spots and egg quality of laying hens in different breeds.320270-day-old Langshan chickens,Barred Plymouth Rock or Beijing You chickens were randomly divided into 2 groups with 8 repeats in each group and 20 chickens in each repeat.The control groups(CON)were fed with basic diet and the experimental groups(EXP)were fed with diet added Clostridium butyricum(100 mg/kg)and sodium butyrate(500 mg/kg).The pre-feeding period was 3 days and the period of the experiment was 5 weeks.The results showed that:Compared with the control group,①The egg production rate of Langshan chicken,Barred Plymouth Rock and Beijing You chicken were increased by 12.5%,12.0%and 24.9%respectively(P<0.01).②The grade 3 rate of the freckles of the Langshan was decreased by 34.2%in the experimental group(P<0.05),there was no significant difference of dark spot rate of Langshan chicken,and no significant difference of freckle rates and dark spot rate in Barred Plymouth Rock and Beijing You chicken(P>0.05).③The egg weight was decreased by 1.7%(P<0.05),the egg shape index increased by 2.3%(P<0.05)of Langshan chicken in experimental group.The weight of the eggs of Barred Plymouth Rock increased by 1.5%(P<0.05).The protein height increased by 13.9%(P<0.05),and the Hastelloy unit increased by 4.7%(P<0.05)of Beijing You chicken in experimental group.In summary,adding Clostridium butyricum and sodium butyrate to the basic diets could increase the egg production rate of Langshan chicken,Barred Plymouth Rock and Beijing You chicken.It also had a certain effect on improving the freckles of Langshan chicken eggs,and could help to improve the egg quality of Barred Plymouth Rock and Beijing You chicken.
作者
刘文峰
韩威
叶小其
杨海明
LIU Wenfeng;HAN Wei;YE Xiaoqi;YANG Haiming(College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,China;Jiangsu Institute of Poultry Science,Yangzhou 225125,China;Jiangsu Yancheng Yuanyao Feed Co.,Ltd.,Dongtai 224224,China)
出处
《中国畜牧兽医》
CAS
北大核心
2021年第3期893-900,共8页
China Animal Husbandry & Veterinary Medicine
基金
江苏省科技项目(政策引导类计划——苏北科技专项,SZ-YC2019003、SZ-SQ2019055)。
关键词
丁酸梭菌
丁酸钠
产蛋率
蛋品质
Clostridium butyricum
sodium butyrate
egg production rate
egg quality
