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本文报道了斜带髭鲷在室内大量自然产卵的试验结果。实验表明:3龄亲鱼采用加强饵料营养,结合使用适当剂量的激素(TRHR-A_2、TRHR-A_3和HCG)进行催熟和催产,亲鱼产卵量大,产卵集中,卵质较好。使用57尾亲鱼(27尾雌鱼,30尾雄鱼),总产卵量6256.5×10~4粒,受精卵4504.5×10~4粒,平均每尾雌鱼产卵231.7×10~4粒,平均受精率66.7％,仔鱼孵化率 79.2％。
In this paper, we report the results of a large number of natural laying eggs of the wild snakehead bearded indoors. The results showed that the broodstock had higher fecundity, oviposition and better egg quality in the third instar broodstock than in the second broiler fed with the enhanced dietary supplementation and combined with the appropriate doses of hormones (TRHR-A_2, TRHR-A_3 and HCG). 57 brood fish (27 females and 30 males) were used. The total fecundity was 6256.5 × 10 ~ 4 and the fertilized egg was 4504.5 × 10 ~ 4, with an average of 231.7 × 10 ~ 4 eggs per female, The average fertilization rate was 66.7% and the hatching rate of larvae was 79.2%.