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Full artificial propagating method for Macculochella peeli

A technology of artificial breeding and cod perch, applied in fish farming, application, climate change adaptation, etc., can solve the problems of low fertilization rate, low survival rate of broodstock, difficult control of spawning and insemination, so as to increase survival rate and ensure hatching success rate, increasing effectiveness of protective measures

Pending Publication Date: 2020-06-02
JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for artificial breeding of Australian cod perch, which solves the problems that the existing Australian cod perch spawning and insemination is difficult to control, the fertilization rate is low, and the survival rate of broodstock is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Select parent fish: female Australian cod weighs between 6-12kg, male Australian cod weighs between 5-11kg, and the fish age is 6-7 years. Cultivate according to the steps described above, the results are as follows:

[0042] On March 18, 10 artificial groups were done, and the water temperature was 20-21°C. Emergence began on the 24th, a large number of seedlings emerged on the 25th, and ended on the 26th, with a total of 50,000 seedlings. Put urea solution in the egg basin. The semen is placed directly into the egg fluid.

Embodiment 2

[0044] On March 22, 12 artificial groups were done, and the water temperature was 20-21°C. Seedlings emerged on the 28th. Total 30,000-40,000. Put urea solution in the egg basin. The semen is placed directly into the egg fluid.

Embodiment 3

[0046]Broodstock were selected according to the above method, a total of 18 groups, of which the largest female was 11.3kg. The smallest individual is 6.1kg. The smallest male body is 5.2kg. The largest individual is 10.6kg. Injection of oxytocic agent was carried out on March 24, and artificial egg insemination was carried out on the afternoon of March 26. One group was debonded with talcum powder, one group was debonded with cornmeal, and the other was debonded with silt, and the effect was debonded with cornmeal. Best, the 2 groups adopt dry insemination, wherein each broodstock is placed in a separate breeding tank after the eggs are squeezed.

[0047] Hang the fertilized eggs of each group on the gauze and move them to the hatching tank. The temperature in the hatching tank is controlled at 19°C. Seedlings began to emerge on April 1, and the emergence was completed on April 6. A total of 150,000 seedlings emerged, including dry insemination The two groups basically fai...

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Abstract

The invention provides a full artificial propagating method for Macculochella peeli. The method comprises the following steps: (1) selecting of parent fishes; (2) culturing of the parent fishes in culture ponds; (3) feeding culture; (4) artificial spawning inducing; (5) artificial fertilization; (6) fertilized ovum collecting; (7) fertilized ovum incubating; and (8) fish fry collecting. Accordingto the technology, all the steps are simple and convenient in operation; and through artificial intervention to spawning and fertilization processes of the Macculochella peeli, the success rate of fertilization and the success rate of incubation of the fertilized ova are guaranteed, the survival rate of the parent fishes reaches 95% or more, the rate of fertilization reaches 85.5%, and the incubation rate reaches 82%. Meanwhile, protective measures for the parent fishes are increased during propagation, the survival rate of the parent fishes after propagation is increased, next propagation isfacilitated, and the loss of propagation is lowered.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for artificial propagation of Australian cod perch. Background technique [0002] Australian cod has a special appearance and delicious taste, and is known as the "National Treasure Fish" in Australia. Its meat is tender and delicious, thick, with few thorns, and rich in flavor amino acids and EPA and DHA nutrients. It is one of the high-quality fish. Because the seedlings of Australian cod are all dependent on foreign imports, the breeding of Australian cod in my country has encountered bottlenecks such as expensive seed and low survival rate of parents. The breeding scale is small, the economic benefits are not high, and the breeding development is slow. Only a small number of enterprises in Jiangsu, Shandong, Fujian and other places experimented with breeding and sold a small amount. They have not been widely promoted, and an industrial chain has not been formed....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/10A01K61/17Y02A40/81
Inventor 赵子明刘美剑林阿朋
Owner JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE
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