摘要
为了使牦牛能够提前发情,缩短牦牛的繁殖周期,减少冷季对犊牛的影响,试验采用冷季补饲的方式,提高母牦牛营养促进早期发情。结果表明,试验组母牦牛在6月下旬发情16头,发情率为32.00%,到7月上旬共发情37头,总发情率达74.00%。对照组母牛6月份未发情,到7月上旬发情67头,发情率为51.54%。2015年、2016年数据显示6月份母牦牛未发情,到7月上旬各发情5头,发情率分别为2.63%和3.07%。因此,适时补饲能有效调控母牦牛提前发情配种。
In order to make female yak rut early,shorten reproductive cycle of yak,and reduce the influence of cold season on calves,supplementary feeding technique was applied to improve nutritional status of female yak and promote early oestrus.The results indicated that 16 female yaks in the test group were in estrus in late June,with 32.00% oestrus rate;while the number of female yaks rut had reached 37 until early July,with 74.00% oestrus rate.In the control gruoup,there was none of female yak ruts in June;while the number of female yaks in estus had reached 67 until early July,with 51.54% oestrus rate.The previous data showed that there was none of female yak ruts in June,and oestrus rates reached 2.63%and3.07%in early July,in 2015 and 2016 respectively.Therefore,timely supplementary feeding can effectively control the early oestrus of female yak.
作者
赵寿保
武甫德
裴杰
白俊杰
杨全寿
包鹏甲
李吉叶
郭宪
ZHAO Shou-bao;WU Fu-de;PEI Jie;BAI Jun-jie;YANG Quan-shou;BAO Peng-jia;LI Ji-ye;GUO Xian(Datong Yak Farm in Qinghai Province,Xining 810102,China;Lanzhou Institute of Husbandry and Pharmaceutical Sciences,Chinese Academy of Agricultural Sciences,Lanzhou 730050,China)
出处
《中国牛业科学》
2018年第3期34-36,共3页
China Cattle Science
基金
现代农业(肉牛牦牛)产业技术体系建设专项(CARS-37)
关键词
牦牛
提前发情
适时补饲
yak
early rut
timely supplementary feeding
