摘要
为了判断罗威纳母犬发情所处的阶段及预测排卵时间、探究不同发情阶段其阴道外部临床外观及主要生殖激素的变化规律、确定最佳配种时间,试验对罗威纳母犬发情周期不同阶段临床外观进行了观察并测定了生殖激素水平。结果表明:可以根据罗威纳母犬发情时期不同阶段的外观特征及生理激素水平判定发情阶段及排卵时间。在雌二醇峰值出现后第3天,孕酮浓度为(6.40±0.82)ng/mL,也就是阴道出现血样分泌物的10~13天,母犬开始排卵,这个时间安排配种,可提高受胎率及窝产仔数。
In order to judge the estrus stage and predict the ovulating time of the female dog,to study the clinical characteristics of the external vagina and the changes of major reproductive hormones in different estrus stages,and to explore the best breeding time of rottweiler female in estrus cycle,the clinical appearance at different stages of the estrous cycle was observed and the levels of reproductive hormones were measured in female rottweilers.The results showed that the oestrus phase and ovulation time of Rottweiler female can be determined according to the appearance characteristics and the level of birth hormone at different stages of oestrus.The concentration of P was(6.40±0.82)ng/mL on the 3 rd day after the peak of E2,and the female began to ovulate on the 10 th to 13 th day after the blood secretion appeared in the vagina.Breeding at this stage can increase the pregnancy rate and the number of foetuses.
作者
王春亮
熊前
吴衍
张军
李强
余盼
李川武
WANG Chunliang;XIONG Qian;WU Yan;ZHANG Jun;LI Qiang;YU Pan;LI Chuanwu(Nanchang Police Dog Base,Ministry of Public Security,Nanchang 330100,China;Jiangxi Key Laboratory of Police Dog Breeding and Behavioral Science,Nanchang 330100,China;Police Dog Breeding and Training Base,Jiangxi Public Security Department,Yichun 33060,China)
出处
《黑龙江畜牧兽医》
CAS
北大核心
2020年第8期124-126,150,共4页
Heilongjiang Animal Science And veterinary Medicine
基金
国家重点研发计划项目(2016YFD0501008)。
关键词
罗威纳犬
发情周期
排卵
临床外观
生殖激素
Rottweiler
estrus cycle
ovulation
clinical appearance
reproductive hormones