【摘要】 高效准确的早期妊娠诊断,可以缩短母牛的产犊间隔,从而达到提高母牛繁殖效率的目的。家畜早期妊娠诊断方法的研究具有悠久的历史,从原始的外部观察法到目前应用最广泛且最直接的直肠检查法,再到后期发展起来的超声波检查法以及近年来研究比较多的易于商业化的间接检测法。本文对在生产中具有实际应用效果且具有一定发展前景的早期妊娠诊断技术应用现状进行了综述。更多还原

【Abstract】 Efficient and accurate early pregnancy diagnosis can shorten the calving interval of cows and improve the reproductive efficiency of cows. The research on the diagnosis method of early pregnancy in livestock has a long history, from the original external observation method to the most widely used and most direct rectal examination method, Ultrasonic examinations developed in the later stages, as well as indirect detection methods that are more commercially available in recent years.This paper only summarizes the application status of early pregnancy diagnostic techniques with practical application effects and certain development prospects in production.更多还原