摘要
为研究拉萨白鸡笼养与散养生产性能的对比试验,选用同一批次的(3周龄)且体重相近的拉萨白鸡作为研究对象,试验分为2组,一组散养,一组笼养,每组600羽,且公母各半,每组再随机分为3个重复,每个重复200羽,笼养组的分3层饲养,上、中、下,每个笼子里4羽鸡,公母随机分配,每一层放200羽。从3~6周龄,饲喂正大育雏期饲料,从7~20周龄,饲喂正大育成期饲料,21周龄开始饲喂产蛋期饲料。试验期间,自由采食和饮水。3周龄体重、6周龄体重、18周龄体重、开产体重、43周龄体重、见蛋日龄、开产日龄(产蛋达到50%)、开产蛋重、43周龄蛋重、平均日采食量、平均日增重、总产蛋数、平均产蛋数、平均产蛋率、料蛋比等指标的测定。结果表明:散养组的拉萨白鸡(6周龄、18周龄、开产)公鸡体重、母鸡体重均低于笼养组的拉萨白鸡;散养组的拉萨白鸡43周龄的公鸡体重高于笼养组的拉萨白鸡,且散养组的拉萨白鸡的母鸡体重低于笼养组的拉萨白鸡;笼养组的拉萨白鸡的见蛋日龄比散养组的提前8 d;笼养组的拉萨白鸡的开产日龄(产蛋达到50%)比散养组的提前27 d;笼养组的拉萨白鸡的开产蛋重比散养组的高0.49 g,且两者差异不显著(P>0.05);散养组的拉萨白鸡的43周龄蛋重比笼养组的高0.04 g,且两者差异不显著(P>0.05);笼养组的拉萨白鸡的平均日采食量比散养组的低14.40 g,且两者差异极显著(P<0.01);散养组的拉萨白鸡的公鸡的平均日增重比笼养组的高0.07 g,且两者差异不显著(P>0.05);笼养组的拉萨白鸡的母鸡的平均日增重比散养组的高0.08 g,且两者差异不显著(P>0.05);笼养组的拉萨白鸡的总产蛋数比散养组的多4343枚;散养组的拉萨白鸡的平均产蛋数为78.85枚,笼养组的拉萨白鸡平均产蛋数为95.76枚,且两者差异极显著(P<0.01);散养组的拉萨白鸡的平均产蛋率为27.67%,笼养组的拉萨白鸡平均产蛋率为
The present paper aimed to study the comparative test of the production performance of Lhasa white chicken of cage rearing and free range rearing.Lhasa white chickens of the same batch(3 weeks old)with similar weight were selected as the research object.The experiment was divided into two groups,one group of free breeding,one group of cage breeding,each group of 600 feathers,male and female half,feeding up to 43 weeks old,the production performance data were collated and analyzed.The results showed that the weight of the free range Lhasa white chickens(6 weeks old,18 weeks old,at birth)was lower than that of the caged Lhasa white chickens.The weight of the 43 week-old free range Lhasa white chicken was higher than that of the caged Lhasa white chicken,and the weight of the free range Lhasa white chicken was lower than that of the caged Lhasa white chicken.The egg age of caged Lhasa white chickens was 8 days ahead of time than that of free-range chickens.Caged Lhasa white chickens were 27 days ahead of time than free range white chickens(egg production reached 50%).The egg weight of caged Lhasa white chickens was 0.49 g higher than that of free range chickens,and the difference between the two was not significant(P>0.05).The 43-week-old egg weight of Lhasa white chicken was 0.04 g higher than that of caged white chicken,and the difference between the two was not significant(P>0.05).The average daily feed intake of caged Lhasa white chickens was 14.40 g lower than that of free-range chickens,and the difference between the two groups was extremely significant(P<0.01).The average daily weight gain of the free-range Lhasa white chickens was 0.07 g higher than that of the caged ones,and the difference between the two was not significant(P>0.05).The average daily weight gain of caged Lhasa white chickens was 0.08g higher than that of free range chickens,and the difference between the two was not significant(P>0.05).The total number of eggs laid by Lhasa white chickens was 4,343 more than that of free-range chickens.In t
作者
冯静
刘会杰
王燕
鹏达
臧蕾
石海仁
马雪英
FENG Jing;LIU Hui-jie;WANG Yan;PENG Da;ZANG Lei;SHI Hai-ren;MA Xue-ying(Institute of Animal Husbandry and Veterinary Medicine,Tibet Academy of Agricultural and Animal Husbandry Science,Tibet Lhasa 850009,China)
出处
《西藏农业科技》
2020年第1期25-30,共6页
Tibet Journal of Agricultural Sciences
基金
拉萨白鸡新品种培育
西藏自治区自然科学基金项目[XZ 2018 ZR G-50(Z)]
国家蛋鸡产业技术体系—拉萨综合试验站。
关键词
拉萨白鸡
散养
笼养
体重
平均产蛋数
平均日采食量
料蛋比
Lhasa white chicken
Free range rearing
Cage rearing
Weight
Average number of eggs laid
Average daily food intake
Feed-gain ratio
