【摘要】 对２７１头黄牛、杂种牛进行提高受胎率的试验。结果表明：用ＬＲＨ－Ａ处理的母牛情期受胎率和总受胎率分别为５６．６％和６５．９３％，明显高于对照组（２４．４２％和４９．２１％）（Ｐ＜０．０５）；用ｈＣＧ处理的母牛情期受胎率和总受胎率分别为５３．３３％和７２．７２％，明显高于对照组（３３．６９％和５２．５４％）（Ｐ＜０．０５）。更多还原

【Abstract】 Yellow cattle and hybrid cattle were used in the trial for improvement of conception rate.The result showed that the non return rate and total conception rate in the cow treated with LRH A were 56.6% and 65.93% resp.and were significantly higher than control group(24.42% and 49.21%)(P<0.05);the non return rate and total conception rate in the cow treated with hCG were 53.33% and 72.72% resp.and were signficantly higher than those in the cow of control group (33.69% and 52.54%)(P<0.05). \ \更多还原