近年来市场对禾花鲤商品鱼需求有所增加,禾花 鲤稻田养殖在农村也有所复苏,对禾花鲤种苗的需求 随之增大。虽然禾花鲤在流水或静水中都能自然繁 殖,但因受环境条件的影响,多数是零星产卵,而且鱼 卵和鱼苗往往被苗类或其它敌害所吞食,成活率很 低。人工繁殖可以使禾花鲤集中产卵,提高鱼卵受精 率、孵化率和鱼苗成活率,并做到有计划地生产。要搞 好禾花鲤的人工繁殖必须抓包括亲鱼选择、培育、产 卵、孵化和出苗五个关键环节。现详细介绍如下: In recent years, the market demand for grass carp fish has increased, grass carp rice paddy farming in rural areas have also recovered, the demand for grass carp seedlings increased. Although grass carp can breed naturally in flowing or still water, spawning mostly due to environmental conditions, eggs and fry are often swallowed by seedlings or other predators and the survival rate is very low. Artificial breeding can make spawning carp concentrated, improve the fertilization rate of eggs, hatching rate and survival rate of fry, and plan to produce. To do a good job of Artificial propagation of grass carp must grasp the five key aspects of broodstock selection, breeding, spawning, hatching and emergence. Now details are as follows: