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Full-season artificial breeding method of largemouth bass

A technology for largemouth bass and artificial reproduction, which is applied in the application, climate change adaptation, fish farming and other directions to achieve the effects of alleviating market indigestion, solving the problem of easy disease, and shortening the time of breeding and storage in ponds.

Active Publication Date: 2019-10-22
南京市水产科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main problem to be solved by the present invention is to provide a method for all-season artificial propagation of largemouth bass, which can break the limitation that largemouth bass can only reproduce in spring, thereby controlling the breeding time of seedlings and making them fertile throughout the year. So as to meet the market demand for largemouth bass production

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0024] A method for artificial propagation of largemouth bass throughout the seasons, comprising the steps of:

[0025] (1) Selection and stocking of bass parents: At the beginning of July, 400 largemouth bass with strong physique, large individuals, good body color, no damage, and no disease were selected from Sihong Gaodu Qianmu Ecological Bass Breeding Base as sea bass Parents, the average weight of the broodstock is 0.7kg, and they are stocked in 4 broodstock ponds at the Lukou base of the Nanjing Fishery Science Research Institute. The average stocking density of each broodstock pond is 1.0kg / m 3 . The brooding pond uses a dual-purpose air-energy cold (hot) water machine to control the water temperature. It is equipped with an inlet and outlet and a circulating filtration system. The bottom of the brooding pond is equipped with a microporous booster with a Roots blower as the air source and a rubber nanotube as the air head. oxygen facilities;

[0026] (2) Low temperatu...

Embodiment 2

[0032] A method for artificial propagation of largemouth bass throughout the seasons, comprising the steps of:

[0033] (1) Selection and stocking of perch parents: The perch parent comes from the excellent parent of "You Perch No. 3" self-propagated and self-bred by Jiangsu Shuaifeng Group. The broodstock used for breeding is healthy, free of disease, scars and deformities. The average weight of the broodstock is 0.74kg / tail. After the broodstock reaches the breeding specification, the live fish transport bucket is used to transport the broodstock from the breeding pond of Gaochun Xiaohua Bridge to the broodstock breeding pond of the seed breeding workshop of the Shuaifeng Group for temporary breeding. The stocking density is 1.0kg / m 3 , Maintain continuous oxygenation during the temporary breeding period, and timely fish out sick and dead fish caused by transportation stress, disease and other reasons.

[0034] (2) Low-temperature stimulation: After two days of resting in ...

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Abstract

The invention relates to a full-season artificial breeding method of largemouth bass. The method includes the steps of selection and stocking of bass parents, low-temperature stimulation, parent fishintensive cultivation, temperature rise stimulation of gonad development, hormone injection, fry production and the like. The method carries out artificial breeding of largemouth bass in non-breedingseason under the condition of artificial control for the first time, breaks through the limitation that the bass can only be bred in spring in the past, realizes full-season breeding of the largemouthbass; the method can control the fry production and the fish market time of the largemouth bass, and solves the problems of market dyspepsia, low selling price and the like caused by centralized listing; and the method breaks through seasonal and temperature restrictions, provides large-size fries in the breeding season, shortens the breeding and pond storage time of the largemouth bass, and solves the problem that the old fish stored in ponds for a long time is easy to suffer from diseases.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for all-season artificial propagation of largemouth bass. [0002] technical background [0003] Largemouth bass (Micropterus salmoides), also known as California bass, largemouth bass, belongs to Perciformes (Perciformes), sunfish family (Centrarchide), black fish (Micropterus), native to the Mississippi River Basin in North America, is a kind of fresh and tender meat. It is a high-quality carnivorous freshwater fish with rich nutrition, strong disease resistance and fast growth. It has the reputation of "freshwater yellow croaker" and has been introduced to countries all over the world for breeding. Since it was introduced into China in 1983, scientific researchers have carried out in-depth research on largemouth bass, and artificial breeding was successful in 1985. With the continuous improvement of breeding technology and the intensification of promot...

Claims

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Application Information

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IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 陆健周国勤陈树桥王佩佩唐忠林刘炜
Owner 南京市水产科学研究所
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