Method for cultivating and artificial breeding plateau saline-alkali water area northern pike

A technology of artificial breeding of northern pike, applied in fish farming, climate change adaptation, animal feed, etc., can solve problems such as not being retrieved, and achieve good economic benefits

Inactive Publication Date: 2010-03-24
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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Problems solved by technology

However, there is no report on the breeding of wild northern pike in saline-alkali ponds in the western pl

Method used

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Embodiment Construction

[0006] Before the northern pike fry enter the pond, use the original pond to cultivate bait fish (in the first and middle days of May, first put 300,000 seedlings such as carp, crucian carp, and silver carp in the pond of 10 acres of saline-alkali land, and carry out the conventional "four major family carps" "Fish species breeding), prepare sufficient and palatable bait fish; two weeks later put 5cm northern pike fry (1000 tails), northern pike naturally prey on wild fish in the pond and carp, crucian carp, silver carp fish fingerlings; In order to ensure the normal growth of bait fish, the bait fish is fed with fish compound feed every day; the number ratio of the northern pike seedlings to the bait fish fingerlings in saline-alkali ponds is 1:200-300, that is, in each mu of ponds Mix 50-100 northern pike seedlings; the northern pike is grazing in saline-alkaline lakes and large waters of reservoirs, and put 2-3 northern pike seedlings of 5cm per mu; the northern pike broodst...

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Abstract

The invention relates to a method for cultivating and artificial breeding plateau saline-alkali water area northern pike, aiming at providing a technology suitable for cultivating and artificial breeding the northern pike in the plateau saline-alkali water area. The method adopts first filial generation fingerling bred by wild northern pike to be cultivated into parent fish. The method is characterized in that before the northern pike fingerling is put into a pond, forage fish can be cultivated by an original pond, the northern pike fingerling with the length of 5cm is put into the pond aftertwo weeks, and the polyculture proportion between the northern pike fingerling and the forage fish is 1:200-300; when the temperature of the pond reaches to 7-8 DEG C, parent fish roe of the northernpike can be selected for semidry method artificial fertilization for 5min, and talc powder is used for abhesion after fertilization; oosperm is sterilized by malachite green solution and then enters into an incubator to be incubated; by controlling the speed and the flow rate of the water flow, the dead oosperm of the northern pike can be promoted to be discharged from a drain pipe; deep well water which contains 7-9mg/L of dissolved oxygen and has the water temperature of 12DEG C can be continuously pumped into the bottom of the incubator, and running water incubation can be carried out underthe dim light; and when the fingerling flatly swim to intake the exogenous nutrition, the fish can be fed by fish bait in time.

Description

technical field [0001] The invention relates to a method for cultivating northern pike in plateau saline-alkali waters and artificial breeding. Background technique [0002] The water quality of saline-alkali waters in the northwestern plateau of my country has a pH of 8.35, a salinity of 1706.61mg / L, an alkalinity of 507.55mg / L, a hardness of 465.13mg / L, and a water type of magnesium sulfate III. It is different from the calcium carbonate II water of traditional freshwater aquaculture in my country. Therefore, in order to breed northern pike in the almost barren saline-alkaline waters of the Northwest Plateau and carry out its artificial breeding, it is necessary to have a breeding and breeding technology suitable for its ecological conditions. However, no report has been found on the plateau saline-alkali ponds and lakes where pike is cultured in saline-alkaline ponds and lakes in the western plateau. Contents of the invention [0003] The technical problem to be solve...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K50/80
CPCY02A40/81Y02A40/818
Inventor 黄宁宇樊强国夏连军赵志明
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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