Method for breeding koi in winter

Abstract

The invention relates to a method for breeding koi in winter. The method comprises the following breeding steps: preparing a heat insulation greenhouse which has sufficient sunlight, is quiet in environment and is capable of adjusting the temperature; selecting parent fish which have strong physique, bright body color and excellent vitality; carrying out intensive culture on the parent fish; injecting the parent fish with oxytocic; after the parent fish lay eggs, moving away the parent fish and distributing a fish nest with fertilized eggs in a hatching pond; breeding fish fries in different ponds when the fish fries have stronger preying and swimming abilities, and nursing the ponds. The method enables the koi to be normally bred in winter in combination of scientific breeding and management conditions under the condition of guaranteeing facilities and equipment; the proper female and male fish are selected, so that a better fish body basis is provided for obtaining healthy semen and roes; the selected parent fish is injected with the oxytocic, so that the semen yield and the spawning rate are increased; the reasonable environment of hatching increases the fertility rate; the koi can come into the market in advance in combination of the short-term breeding in the heat insulation greenhouse, so that the economic benefit is improved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a breeding method for winter koi. Background technique [0002] Koi belongs to Cyprinidae biologically and is a high-end ornamental fish popular in the world today. It does not have high requirements for water quality and has a miscellaneous diet. It has the reputation of "living gems in water" and "artwork that can swim", so it is People love it. In recent years, the demand for koi has increased year by year. However, in the northern region, due to the large temperature difference between day and night in winter, the outdoor growth period of koi is relatively short, so it is impossible to make koi go on the market in advance, which reduces the economic benefits of koi farmers. . Contents of the invention [0003] The invention aims to solve the deficiencies of the prior art, and provides a breeding method for winter koi. [0004] In order to achieve the above object, the...

AI Technical Summary

Problems solved by technology

[0002] Koi belongs to Cyprinidae biologically and is a high-end ornamental fish that is popular in the world today. It does not have high requirements for water quality and has a miscellaneous feeding habit. It has the reputation of "living gems in water" and "artwork that can swim". People love it. In recent years, the demand for koi has increased year by year. However, in the northern region, due to the large temperature difference between day and night in winter, the outdoor growth period of koi is relatively short, so it is impossible to make koi go on the market in advance, which reduces the economic benefits of koi farmers.