摘要
为研究来自不同海拔的藏鸡,本试验选用相同营养水平条件下拉萨市3个不同地方散养的藏鸡种蛋,山南市4个不同地方藏鸡种蛋为研究对象,在海拔为3780 m的拉萨市城关区蔡公堂乡进行输氧式孵化对比研究。结果表明:蔡公堂雪域白鸡(拉萨白鸡)种蛋的受精率和入孵蛋孵化率均最高,分别为95.48%和78.43%;尼木藏鸡种蛋的受精蛋孵化率最高,为85.44%;达孜藏鸡种蛋的受精率最低,为72.92%;达孜藏鸡种蛋的健雏率和毛胎率最高,分别为100.00%和21.43%;扎囊藏鸡种蛋的入孵蛋孵化率、受精蛋孵化率和毛胎率最低,分别为26.58%,30.88%和0;蔡公堂雪域白鸡种蛋的受精率(95.48%)和乃东藏鸡种蛋的受精率(93.00%)达到90%以上,其他藏鸡种蛋的受精率均低于90%,这与养殖模式可能有密切的关系;头照死胎率最低的是尼木德青源藏鸡种蛋(2.53%),最高的是扎囊藏鸡种蛋(30.88%);二照死胎率最低的是蔡公堂雪域白鸡(1.73%),最高的是扎囊藏鸡种蛋(38.24%);入孵蛋孵化率由高到低依次为:蔡公堂雪域白鸡78.43%>乃东藏鸡76.00%>错那藏鸡66.98%>尼木德青源藏鸡68.18%>隆子藏黑鸡61.31%>达孜藏鸡37.50%>扎囊藏鸡26.58%;受精蛋孵化率由高到低依次为尼木德青源藏鸡85.44%>蔡公堂雪域白鸡83.61%>乃东藏鸡81.72%>隆子藏黑鸡78.71%>错那藏鸡75.53%>达孜藏鸡51.43%>扎囊藏鸡30.88%。高海拔缺氧是高原藏鸡种蛋孵化率低最主要的因素,本研究为高原上开展藏鸡种蛋的输氧孵化提供理论参考。
In order to study Tibetan chickens from different altitudes,free-range Tibetan chicken hatching eggs from 3 different places in Lhasa and 4 different places in Shannan City under the same nutritional level were selected as the research objects.A comparative study of oxygen-fed incubation was carried out in Caigongtang Town,Chengguan District,Lhasa City with an altitude of 3780 m.The results showed that the fertilization rate and the hatching rate of hatching eggs from Caigongtang Snowy white chicken(Lhasa White chicken)were the highest,which were 95.48%and 78.43%respectively.The hatching rate of fertilized eggs of Nimu Tibetan chicken was the highest,85.44%.The fertilization rate of Dazi Tibetan chicken eggs was the lowest,72.92%.The healthy chick rate and eggs not hatcheg rate of Dazi Tibetan chicken eggs were the highest,100.00%and 21.43%,respectively.The hatching rate,the fertilized egg rate and eggs not hatcheg rate of Zhanang Tibetan chicken eggs were the lowest,26.58%,30.88%and 0,respectively.The egg fertilization rate of Caigongtang Snowy White chicken(95.48%)and Naidong Tibetan chicken(93.00%)reached more than 90%,while the egg fertilization rate of other Tibetan chicken was all lower than 90%,which may be closely related to the breeding mode.The first stillbirth rate of Nimudeqingyuan Tibetan chicken eggs was the lowest,(2.53%),the highest was(30.88%)in Zhanang Tibetan chicken eggs.The second stillbirth rate of Caigongtang Snowy white chicken(1.73%)was the lowest and the highest in Zha Nang Tibetan chicken(38.24%).The incubation rate from high to low was as follows:Caigongtang Snowy White chicken 78.43%>Naigong Tibet chicken 76.00%>Cuona Tibetan chicken 66.98%>Nimudeqingyuan Tibetan chicken 68.18%>Longzi Tibetan black chicken 61.31%>Dazi Tibetan chicken 37.50%>Zhanang Tibetan chicken 26.58%;The incubation rate of fertilized eggs from high to low was as follows:Nimudeqingyuan Tibetan chicken 85.44%>Caigongtang snowy white chicken 83.61%>Naigong Tibet chicken 81.72%>Longzi Tibetan black chicken 78.71%>Cuon
作者
冯静
石海仁
鹏达
臧蕾
马雪英
FENG Jing;SHI Hai-ren;PENG Da;ZANG Lei;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》
2021年第2期32-37,共6页
Tibet Journal of Agricultural Sciences
基金
西藏自治区科学技术厅重点研发及转化项目—原种藏黑鸡保护与扩繁
国家蛋鸡产业技术体系—拉萨综合试验站项目。
关键词
海拔高度
藏鸡
种蛋
输氧
受精率
孵化率
Altitude
Tibetan chicken
Eggs
Added Oxygen
Fertilization rate
Hatching rate
