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 existi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Specific implementation mode 1: The method for raising broodstock of salmon broodstock in this embodiment is implemented through the following steps:

[0017] 1. Set up a female fish seine area, a male fish seine area and an empty seine area in the river water with a depth of 40-50cm. The setting method of the seine area is as follows: a. Use a uniform mesh as a net The inner and outer two-layer nets are set, the inner net has a mesh of 1 to 3 cm, and the outer net has a mesh of 4 to 6 cm. The inner and outer nets are overlapped, and the distance between the top of the overlapped net and the water surface is 1 to 1.5m. The bottom of the overlapping nets is fixed in the mud of the river bottom, and there is no gap between the overlapping nets and the river bottom; b. Extend the two sides of the overlapping nets to the river bank by 40-50cm, and then fix the bottoms of the two sides on the soil of the river bank. In the middle, use iron rods, wooden sticks or bamboo poles to...

Example Embodiment

[0024] Specific embodiment two: this embodiment is different from specific embodiment one in that the mesh in step two is nylon mesh or polyethylene mesh. Other steps and parameters are the same as in the first embodiment.

[0025] The beneficial effects of the present invention are verified through the following tests:

[0026] Experiment: A method for raising broodstock of salmon to promote maturity is achieved through the following steps:

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

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PUM

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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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