鲮鱼诱导产卵试验

THE EXPERIMENTS ON THE SEDUCED SPAWNING OF MUD CARP BY THE SPAWNERS INJECTED WITH HORMONE

本文介绍了用注射脑垂体的鲮鱼来诱导未注射脑垂体的鲮鱼产卵的试验。这项试验的多数试验组使未注射脑垂体的鲮鱼的诱产率达到了或接近了同年常规人工繁殖催产的产卵率水平。作者认为,亲鱼的充分成熟、适宜的水温和保持经过注射脑垂体亲鱼在产卵池中的一定密度,是对未注射催产剂亲鱼诱导产卵的关键因素。此外,本文还对诱导产卵的机制进行了初步讨论。

The experimens have been carried out to prove the feasibility of seduced spawn-ing of Mud Carp (Cirrhina molitorella C. et V.). Spawners were divided into twogroups, one group was injected with hypophysis, while the another group was notinjected. After the injection both groups were reared in same poud. Whenever thespawning of the injected group would seduce the not-injected group to spawn. Theexperiments indicate that the fecundity of the not--injected spawners nearly reach tothe same level of ordinary artificial spawning.The maturity of the brooder,optimum water temperature and the density of injected spawners in the pond are thekey factors for the success in seduced spawning of Mud Carp. The funcion ofseducement is also disscused in the article.