不同饲喂程序对种鸡繁殖性能和蛋品质的影响  

Reproductive performance and egg quality of broiler breeders responded to different feeding procedure

作　　者：丁威[1] 徐云明[1] 周燕芬 DING Wei;XU Yunming;ZHOU Yanfen(Jiangsu Vocational College of Agriculture and Forestry,Jurong,Jiangsu Province 212400,China;Jiangsu Academy of Agricultural Science,Nanjing,Jiangsu Province 210014,China)

机构地区：[1]江苏农林职业技术学院,江苏句容212400 [2]江苏省农业科学院,江苏南京210014

出　　处：《中国饲料》2018年第20期13-16,共4页China Feed

基　　金：江苏省自然科学基金项目(BK20171310);江苏农林职业技术学院基金扶持项目(2016kj001);江苏高校"青蓝工程"中青年学术带头人资助项目(苏教师[2017]15号);江苏省333高层次人才培养工程项目

摘　　要：文章旨在研究不同时间点饲喂种鸡对其繁殖性能和蛋品质的影响。试验选择健康、体重一致的雌性Cobb种鸡375只和雄性种鸡150只,随机分为3组,每组5个重复,每个重复35只(25只雌性和10只雄性)。各组分别在上午8点(处理1组,饲喂1次),8点和15点(处理2组,饲喂2次)和15点(处理3组,饲喂1次)饲喂相同的日粮,试验共进行13周。结果显示:处理3组产蛋率在同一周显著低于其他各组(0.05);处理1组较其他两组显著提高鸡蛋比重(P <0.05);处理3组较处理1组显著提高了蛋黄和蛋壳的重量(P <0.05)。一天饲喂两次(处理2组)鸡蛋蛋壳大肠杆菌数量(36周)较其他各组和周龄最高(P <0.05)。处理1组较处理2组显著提高了受精蛋孵化率(P <0.05)。处理2组和处理3组较处理1组显著提高了胚胎死亡率(P <0.05)。结论 :上午8点饲喂一次可以降低胚胎死亡率,下午3点饲喂1次降低种鸡产蛋率,但可以提高鸡蛋的比重、蛋黄、蛋壳重量及蛋壳厚度。This study was conducted to investigate the effects of different feeding procedure on reproductive performance and egg quality of broiler breeders.A total of 525(375 female and 150 male)broiler breeders were randomly allotted to 3 groups with 5 replicates of 35 broilers(25 female and 10 male).The groups were fed the same diets at 8 am(once),8 am to 3 pm(twice),3 pm(once),respectively.Broiler breeders fed once in the afternoon had lower egg production than others feeding schedules(P<0.05).Hens fed once(treatment 3)had higher specific gravity,shell weight and eggshell thickness than others(P<0.05).Similarly,hens fed once in the afternoon had more egg(P<0.05)and yolk weight(P<0.05)than hens fed in the morning.On the other hand,hens fed in the morning had the lowest embryonic mortality and increased hatchability of fertile egg(P<0.05).Broiler breeders fed at the late period of day had better parameters on eggs quality,no change on bacterial contamination than the others feeding schedules,however,it had the worst results in the embryonic mortality and hatchability of eggs.In conclusion in the present study,the feeding schedule at 3 pm educed egg production.Hens fed at 8 am presented less embryonic mortality.Hens fed at 3 pm had better egg specific gravity,egg weigh,yolk,eggshell and eggshell thickness.

关 键 词：饲喂程序 种鸡 繁殖性能 蛋品质 

分 类 号：S831[农业科学—畜牧学]