Method for promoting flat porgy fish sexual glaan maturation and induced ovulation

A technology for maturation and ovulation induction, applied in the fields of promoting maturation of gonads and inducing ovulation of broodstock of flat sea bream, achieving the effects of low technical cost, simple method, and easy operation and control

Inactive Publication Date: 2005-08-24
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Embodiment Construction

[0022] 1. Carry out broodstock cultivation of flat sea bream. The broodstock are cultivated in the shade in the floating raft-type square net cage in the natural sea area. In October before the reproductive season, healthy broodstock over 2 years old with strong physique, bright body color, lively swimming and no damage are selected. Fortify nutrition, cultivate under natural light, and feed fresh or frozen squid, cuttlefish and other high-quality bait fish. The daily feeding amount is 5-7% of the total mass of broodstock. Feeding amount is based on the weight of broodstock per kg: 10-20mg of vitamin E, 50-100mg of multivitamins, and 0.2-0.5ml of cod liver oil; to maintain the metabolic needs of the body and ensure that the broodstock has sufficient nutrient reserves to provide for gonad development and reproductive processes. energy needed. Keep the water flow in the cage unobstructed and the environment quiet, and avoid clearing the net or intruding on the broodstock.

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Abstract

A method for promoting the sex gland of parent stumpnose bream to be mature and ovulation includes such steps as culturing the parent stumpnose bream in the netted case in nutritive sea region, culturing them in a circulated filter-type reproduction pool when the cocycte is greater than 400 microns in diameter, and injecting synthetic luriberin (LHRH-A2) and chorionic gonadotropin (HCG).

Description

technical field [0001] The invention relates to a method for promoting the normal development of flat sea bream gonads, rapid development, maturation and natural ovulation of oocytes under the induction of artificial synthetic hormones and the control of temperature and light ecological regulation, and providing high-quality eggs for flat sea bream gynogenesis and breeding. Background technique [0002] Flat sea bream is a valuable seawater economic fish, which has the characteristics of female growth advantage, and is an excellent species for seawater breeding. Its all-female seedling breeding is of great significance and promotion value in production. In the research on gynogenesis and all-female parthenogenesis of flat sea bream, it is first necessary to solve the technical problems of broodstock breeding and continuous supply of high-quality mature eggs and semen. , carry out broodstock breeding and nutritional enhancement, gonad maturation, ovulation induction and natur...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 蔡泽平
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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