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选择性腺发育成熟的鲶鱼 ,采用不同品种、不同剂量的激素进行催产。对催产后的亲鱼分别给予不同的刺激 ,寻找产卵必需的环境因子。对受精卵采取不同的方式孵化。结果表明 :亲鱼培育是关键 ,性腺发育良好的亲鱼 ,只要提供适宜的产卵条件 ,用HCG +LRH a混合激素注射 ,即可达到理想的催产效果。在适宜的水温下 ( 16～ 2 8℃范围内 ) ,只要使受精卵得到充足的溶氧 ,就可获得很高的孵化率。鲶鱼苗互相残食严重
Select mature glandular catfish, using different varieties, different doses of hormones for oxytocin. After giving birth to the broodstock were given different stimuli, looking for the necessary environmental factors spawning. Fertilized eggs take different ways to hatch. The results showed that the broodstock breeding was the key factor, and the gonadal well-developed broodstock could achieve the desired oxytocin effect by providing suitable oviposition conditions with HCG + LRH a mixed hormone injection. In the appropriate water temperature (16 ~ 28 ℃ range), as long as the fertilized egg to obtain adequate oxygen, you can get a high hatchability. Catfish seedlings eat each other serious