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Salmon parent fish raising maturing method

A salmon breeding technology, which is applied in the field of raising salmon broodstock to promote maturation, can solve the problems of long storage time and low survival rate of storage, and achieve the effects of short storage time, quality assurance, and avoiding transportation steps

Inactive Publication Date: 2013-04-03
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problems of long storage time and low storage survival rate in the existing method for raising broodstock of salmon, and provides a method for raising and promoting ripeness of salmon broodstock

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0016] Specific embodiment one: a kind of method for raising and promoting the broodstock of salmon of the present embodiment is realized through the following steps:

[0017] 1. Set up the female fish seine area, the male fish seine area and the empty seine area respectively in the waters with a depth of 40-50cm. There are two layers of nets inside and outside, the mesh of the inner net is 1-3cm, and the mesh of the outer net is 4-6cm. The inner and outer nets are overlapped, and the distance between the top of the overlapping net and the water surface is 1-1.5m. The bottom of the overlapping net is fixed in the river bottom mud, and there is no gap between the overlapping net and the river bottom; b. Extend the two sides of the overlapping net to the river bank by 40-50cm, and then fix the bottom of the two sides to the soil on the river bank In the middle, use iron bars, wooden sticks or bamboo poles to support the net clothes, forming an area of ​​25m 2 fenced area;

[0...

specific Embodiment approach 2

[0024] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the mesh in step 2 is nylon mesh or polyethylene mesh. Other steps and parameters are the same as those in Embodiment 1.

[0025] Prove the beneficial effect of the present invention by following test:

[0026] Test: a method for raising and promoting the ripening of salmon broodstock is realized through the following steps:

[0027] 1. Set up 5 female fish seine areas, 5 male fish seine areas and 1 empty seine area respectively in waters with a river depth of 40-50 cm. The setting method of the seine area is as follows: a. Use mesh The uniform mesh is used as the net, and there are two layers of nets inside and outside, the mesh of the inner net is 2cm, and the mesh of the outer net is 5cm. The inner and outer nets are overlapped, and the distance between the top of the overlapping net and the water surface is 1.2m. The bottom of the overlapping netting is fixed in the mud at the bottom of ...

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Abstract

The invention relates to a salmon parent fish raising maturing method and aims to solve the problem that the existing salmon parent fish raising methods are long in raising time and low in raising survival rate. The method includes the steps of firstly, setting a female fish purse net area, a male fish purse net area and an empty purse net area; secondly, setting a drain holding net; thirdly, placing female fish and male fish respectively; fourthly, cleaning attachment on the purse net and the drain holding net in each morning and at each night; fifthly, detecting parent sexual gland maturity in each morning and at each night, taking out mature parent fish for manual reproduction, and placing immature parent fish in the empty purse net area; when a net area adjacent near the empty purse net area is inspected, inspecting the next adjacent purse net area until all the purse net areas are inspected, and accordingly the salmon parent fish raising maturing method is finished. The salmon parent fish raising maturing method is suitable for the field of aquatic products.

Description

technical field [0001] The invention relates to a method for raising and promoting the ripening of salmon broodstock. Background technique [0002] Salmon is a cold-water fish with migratory ecological habits. It lives and grows in the North Pacific Ocean. After reaching sexual maturity, it enters the rivers along the northern Pacific Ocean to lay eggs and reproduce. There are certain differences in the development of gonads due to the upstream distance, migration age, and hydrological conditions. Some parents have not yet reached sexual maturity when they are captured, and they need to be kept in an artificial environment for a certain period of time to promote maturation before artificial reproduction. [0003] At present, there are two ways to raise the parents of salmon release stations: one is to transport the caught salmon to the breeding workshop with a live fish transport vehicle, and store them in cement ponds to promote maturation; the other is to release the paren...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 王秋实赵春刚姜作发
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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