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Trachinotus ovatus crossbreeding method

A hybrid breeding and golden pomfret technology, which is applied in fish farming, application, climate change adaptation and other directions, can solve the problems of increasing biological variability, declining quality of breeding groups, and reducing economic benefits, and achieves the promotion of semen and ovulation, The effect of promoting gonadal development and improving stress ability

Inactive Publication Date: 2021-02-02
广东大麟洋海洋生物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Oval pomfret and albacore pomfret, commonly known as golden pomfret, are the same genus but different species of pomfret. The meat is tender and delicious, and is favored by consumers. However, due to overfishing, environmental changes and other reasons, The quality of the breeding population is severely reduced, and the economic benefits are significantly reduced; hybridization can transfer the genetic material of organisms from one population to another, an important method to increase biological variability, and hybridization of different types of parents can obtain the recombination of variable traits , more excellent traits appeared in the hybrid offspring

Method used

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Experimental program
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Effect test

Embodiment 1

[0026] A kind of golden pomfret hybrid breeding method: comprise the following steps:

[0027] S1, selection and cultivation of parents: select oval pomfret fry and longfin pomfret fry and put them into the breeding pond, use movable partitions to divide the breeding pond into the still water area of ​​the flowing water area, and control the water temperature in the flowing water area to be 13°C. The flow velocity is 0.3m / s, and the water temperature in the still water area is 25°C. The egg-shaped pomfret fry is used as the male parent, and the albacore pomfret fry is used as the female parent. The ratio of male and female parents is 3:1, and they will be placed in the flowing water area. After 15 days of breeding, transfer to the still water area for static cultivation;

[0028] S2. Artificial induction of labor: artificially induce labor for the male and longfin pomfrets with well-developed gonads, and then put them into the running water area for cultivation. The flow rate ...

Embodiment 2

[0032] A kind of golden pomfret hybrid breeding method: comprise the following steps:

[0033] S1, parent selection and cultivation: select oval pomfret fry and longfin pomfret fry to put into the breeding pond, use movable partitions to divide the breeding pond into the still water area of ​​the flowing water area, and control the water temperature in the flowing water area to be 15°C. The flow velocity is 1.0m / s, and the water temperature in the still water area is 30°C. The egg-shaped pomfret fry is used as the male parent, and the albacore pomfret fry is used as the female parent. The ratio of male and female parents is 7:1, and they will be placed in the flowing water area. After 25 days of breeding, transfer to the still water area for static cultivation;

[0034] S2. Artificial induction of labor: artificially induce labor for the male and longfin pomfrets with well-developed gonads, and then put them into the running water area for cultivation. The flow rate is control...

Embodiment 3

[0038] A kind of golden pomfret hybrid breeding method: comprise the following steps:

[0039] S1, parent selection and cultivation: select oval pomfret fry and albacore pomfret fry and put them into the breeding pond, use movable partitions to divide the breeding pond into the still water area of ​​the flowing water area, and control the water temperature in the flowing water area to be 14°C. The flow velocity is 0.7m / s, the water temperature in the still water area is 28°C, the egg-shaped pomfret fry is used as the male parent, and the albacore pomfret fry is used as the female parent. The ratio of male and female parents is 5:1, and they will be placed in the flowing water area. After 20 days of breeding, transfer to the still water area for static cultivation;

[0040] S2. Artificial induction of labor: artificially induce labor for the male and longfin pomfrets with well-developed gonads, and then put them into the running water area for cultivation. The flow rate is cont...

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Abstract

The invention provides a trachinotus ovatus crossbreeding method. The method comprises the following steps of parent selection and cultivation, artificial spawning induction, artificial fertilization,fertilized egg incubation and the like, trachinotus ovatus fries are used as male parents, longfin trachinotus fries are used as female parents, crossbreeding is carried out, the fertilization rate and the incubation rate are increased through parent cultivation environment control, artificial spawning induction and artificial fertilization, fertilized eggs with better quality are obtained, and the survival rate of the fries is effectively increased.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a golden pomfret hybrid breeding method. Background technique [0002] Oval pomfret (scientific name: Trachinotus ovatus) is a fish in the family Trevalidae and the genus Pomfret. The body is tall and flat on the side; the tail peduncle is thin and short, flat on the side. The head is small, taller than long, and the occipital crest is obvious. The snout is blunt, with several truncated front ends, and the snout is longer than the diameter of the eyes. Small eyes, anterior position. Oval pomfret is a warm-water pelagic migratory fish. In the juvenile stage, it often inhabits estuaries and bays after the Spring Festival every year. It is a carnivorous fish, and its larvae and juveniles feed on various plankton and benthic animals, mainly copepod larvae; juveniles and juveniles feed on daphnia, polychaetes, small bivalves and amphipods; young , Adult fish feed on amphipods, bivalves...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 黄春仁王申苏炳威徐珂珂陈晓莹刘玉杰
Owner 广东大麟洋海洋生物有限公司
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