Aralichthys lethostigma parent fish rearing method

Abstract

The invention relates to a method for breeding parent fish of paralichthys lethostigma. The method comprises desalination culture and salinization culture of standby parent fish as well as intensive culture of the parent fish. Specially made feed is fed during the intensive culture of the parent fish, wherein, the weight percentages of main materials in the feed are the following: 30-40 percent of Gobiidae or ammodytes, 15-20 percent of cuttlefish or sleeve-fish, 15-20 percent of sea cucumber and 20-30 percent of bastard halibut powder; the weight percentages of additives accounting for the main materials are the following: 1-2 percent of parent fish hardening agent, 0.4 percent of Vc and 0.4 percent of Ve; the feed particle size is 9mm-11mm. During light and temperature regulation and control, four bulbs are suspended over each parent fish culture tank with two bulbs of 60W and two bulbs of 150W suspended on the cross to obtain even light; water temperature is raised to 17 DEG C from 14.5 DEG C. Based on biological characteristics of wide optimum salinity of the paralichthys lethostigma, the invention makes use of F1 replacing fingerlings to culture standby parent fish in fresh water after desalination, and after salinization the standby parent fish is intensively cultured to obtain sexually mature egg-laying parent fish, thereby effectively solving the problem of high cost, restriction, poor parent quality and low survival ratio of introduced paralichthys lethostigma parent.

Description

technical field [0001] The invention relates to a method for cultivating broodstock, in particular to a method for cultivating broodstock of desert flounder. Background technique [0002] At present, the cultivation process of the broodstock of flounder reported at home and abroad is all carried out under seawater environment conditions, and the parents of flounder breeding in China are all wild parents directly introduced from the United States. Therefore, there are problems such as the high cost and restriction of introducing parents of flounder from abroad, and the quality and survival rate of the parents are difficult to guarantee. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies in the above-mentioned technology, and provide a kind of breeding habits of flounder, using the principle of influence of environmental conditions on the gonad development of seawater fish and the biological characteristics of flounder with...

AI Technical Summary

Problems solved by technology

Therefore, there are problems such as the high cost and restriction of introducing parents of flounder from abroad, and the quality and survival rate of the parents are difficult to guarantee.