本文报道在泥螺人工育苗过程中高锰酸钾、福尔马林、土霉素三种药物对泥螺卵群孵化的影响。结果表明，高锰酸钾、福尔马林、土霉素的浓度分别为０．２８×１０－６～０．９×１０－６、５×１０－６～９×１０－６和１×１０－６～２０×１０－６时，泥螺卵群孵化率明显高于对照组，且对胶质膜的溶解有促进作用。使用上述药物后，还可提高卵群孵化的同步性。药物浓度超过上述范围，则孵化率明显下降，直至使胚体死亡。本文就胶质膜的作用进行了简单讨论，还对这三种药物在实际生产中的应用作了分析 This paper reports the effects of three drugs, potassium permanganate, formalin and oxytetracycline on the hatching of the snail eggs during artificial nursery. The results showed that the concentrations of potassium permanganate, formalin and oxytetracycline were 0.28 × 10-6 ~ 0.9 × 10-6, 5 × 10-6 ~ 9 × 10-6 and 1 × When hatching rate was 10-6 ~ 20 × 10-6, the hatching rate of the snail eggs was obviously higher than that of the control group, and it promoted the dissolution of the glomerulus. The use of these drugs, but also improve the synchronization of egg hatching. When the drug concentration exceeds the above range, the hatching rate significantly drops until the embryo body dies. In this paper, the role of the plastic film was briefly discussed, but also the application of these three drugs in the actual production was analyzed