摘要
[目的]利用同期发情及早期妊娠诊断提高牦牛的生产效益和生产性能。[方法]在发情季节母牦牛开始出现发情前,使用PG和FSH进行同期发情,对出现发情母牦牛进行人工授精,授精后2个月使用B-超方法进行早期妊娠诊断,并于4个月后的直肠检查结果进行妊娠诊断复查,对比2种检查方法的符合率。[结果]采用PG和FSH 2种药物处理后牦牛的同期发情率分别达82.00%和86.66%;人工授精情期受胎率达48.78%和50.00%;B-超诊断与直肠检查的符合率达90.47%。
[Objective] To improve production benefit and performance of yak by using estrus synchronization and diagnosis of early pregnancy.[Method] Before the appearance of estrus,yaks were injected by PG and FSH.The yaks appear of estrus were artificially inseminated.The diagnosis of early pregnancy was conducted by B-model ultrasonic at 2 months of pregnancy and rectal examination at 4 months after insemination.[Result] The synchronous rate of yak reached 48.78% and 50.00% after using the drugs PG group and FSH group in 72 h; the conception rate were 82.00% and 86.66% respectively; Early pregnancy diagnosis coincidence rate was 90.47%.
出处
《安徽农业科学》
CAS
2014年第22期7437-7438,共2页
Journal of Anhui Agricultural Sciences
关键词
牦牛
同期发情
早期妊娠诊断
Yak
Estrus synchronization
Diagnosis of early pregnancy