采用3%和5%硫酸铜液对57头黑白花母牛进行早期妊娠诊断，然后通过直肠检查技术进行确诊。
The early pregnancy diagnose was experienced by 3% and 5% CuSO4 respectively in 57 cows, then checked up their accuracy through rectum-check.
采用3%和5%硫酸铜液对57头黑白花母牛进行早期妊娠诊断，然后通过直肠检查技术进行确诊。
The early pregnancy diagnose was experienced by 3% and 5% CuSO4 respectively in 57 cows, then checked up their accuracy through rectum-check.
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