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Industrialized fingerling cultivation method for late cod croaker shaped spotted maigre and special clean fish hardening agent thereof

A method for cultivating yellow croaker, which is applied in the field of aquaculture seedling raising method and its special nutrition fortifier, and achieves the effects of improving relative quality, improving quality and strong vitality.

Inactive Publication Date: 2009-04-08
ZHEJIANG OCEAN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

There is no report on the artificial propagation and nursery technology of croaker carp at home and abroad

Method used

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Experimental program
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Embodiment

[0024] Embodiment: A method for cultivating factory seedlings of yellow croaker, which has the following steps:

[0025] ①Select the broodstock of croaker croaker weighing between 17kg and 19kg, the ratio of male to female is 1:1, and put it into the holding tank for temporary breeding; the density of broodstock is 1 tail / m 3 To 1.5 tails / m 3 ; Feed the bait mixed with enhancer during the temporary rearing of the broodstock;

[0026] ②The broodstock is induced to spawn. Check that the maturity of the female fish’s gonads reaches the end of stage III. The male can squeeze the abdomen lightly and the white semen can flow out, and the broodstock can be injected with oxytocin to artificially induce spawning. After the eggs are collected, the fertilized eggs are collected; after the induction of spawning, the semen of the male fish is collected, frozen in liquid nitrogen, and then thawed in a water bath, and then mixed with the sperm eggs in the pressure seawater for artificial insemin...

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PUM

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Abstract

The invention discloses a method for breeding a Nibea miichthioides industrial seeding variety and a ripe special fish energizing agent thereof. The method adopt the ripe fish energizing agent which contains fish protein concentrate, bean cake powder, yeast, wheat middling, anchovy oil, VE, sinkaline, Ca(H2PO4)2, complex vitamin and mixed inorganic salt, and combines a screen method of freezing germ cell to produce excellent seed variety. The method can effectively improve the quality and hatchability of the germ cell, is suitable to be applied to industry, can effectively improve the quality of the germ cell, screen poor germ cell formed by egg membrane defect or sperm cell membrane defect, and reduce the ration of the poor seed. The aberration rate of embryo is reduced through EDTA sodium salt combined with low temperature. The method and the energizing agent can breed large mass of Nibea miichthioides seed varieties suitable for artificial breeding and artificial stocking.

Description

Technical field [0001] The invention relates to a method for raising aquatic product seedlings and a special nutrient fortifier, in particular to a method for cultivating an industrialized seedling of croaker-shaped yellow croaker and a special broodstock enhancer. Background technique [0002] Nibea miichthioides Chu Lo & Wu (Nibea miichthioides Chu Lo & Wu) belongs to the genus Toxocephalidae. It is commonly known by fishermen along the coast of Fujian and Guangdong, and it weighs up to 25 to 30 kg. The meat is delicious and the swim bladder has medicinal value. , Best-selling in the international market. Before the artificial seedlings were successfully raised, the sea cages of Fujian, Guangdong, and Zhejiang provinces were mainly relying on catching sea seedlings. Unlimited overfishing of sea area fry has led to the near-exhaustion of owl-shaped yellow croaker fry resources. According to reports by Lin Wanzengchuan and Li Shengyao, the impure seed in the sea area hinders the ...

Claims

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Application Information

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IPC IPC(8): A01K61/00C12N5/06A01N1/02A23K1/16A23K1/18A23K10/20A23K50/80C12N5/073
CPCY02A40/81Y02A40/818
Inventor 徐梅英韩静徐佳晶吴常文
Owner ZHEJIANG OCEAN UNIV
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