用血清酸滴定法对牛进行早期妊娠诊断的研究

采用血清酸滴定法对配种后16 d～45 d的1 008头不同品种的母牛进行了早期妊娠诊断研究,检出妊娠牛764头,未妊娠牛244头;与直肠检查结果对比,妊娠符合率为90.31%(690/764),未孕符合率为93.03%(227/244),总符合率为90.97%(917/1008).对3种不同品种牛试验结果经3组间及两组间卡方检验统计分析,无显著差异(P＞0.05).表明血清酸滴定法用于牛的早孕诊断具有诊断时间早、方法简便、结果准确等优点,宜于在基层推广.

Study on Early Pregnancy Diagnosis in Cows by Serum Acid Titration in Bovine

Early identification of pregnant and non-pregnant cows post breeding improves reproductive efficiency and pregnancy rate in cows by decreasing the interval between services.In this study we did Early Pregnancy Diagnosis by Serum Acid Titration in 1008 cows at 16-45 days post-breeding.The result was that 764 out of 1008 were diagnosed as pregnant,244 were not.Compared with rectal palpation,the reliability of this method to detect pregnant,non-pregnant cow is 90.31%(690/764) and 93.03%(227/244) respectively,totally 90.97%(917/1008).Chi-square test analysis shows no significant(P<0.05)among the three groups or between two groups of the three.The advantage of using Acid Titration is the higher accuracy of Early Pregnancy Diagnosis results,the earlier pregnancy diagnosis time after insemination,more convenient and simple.