Koi culture method

A koi and strain technology, applied in the field of koi breeding, can solve problems such as low fertilization rate and hatching rate, inability to obtain high-quality koi, and death of fertilized eggs, so as to enrich variety resources, increase reproduction rate, and reduce death rate effect

Active Publication Date: 2019-04-26
BEIJING FISHERIES RES INST
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AI Technical Summary

Problems solved by technology

However, the artificial propagation method of koi carp is still using the method of eating carp at present, and the fertilization rate and hatching rate are not high.
[0003] Because of its strong ornamental value, the purpose of breeding koi is often to obtain higher-quality individuals, which is different from the purpose of breeding food fish, which is to pursue a larger number of offspring and faster growth rates. Therefore, the breeding of food carp It is often impossible to obtain high-qual

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The breeding method of embodiment 1 brocade carp

[0030] 1. Broodstock selection and sex identification

[0031] Select 4-6 age male and female broodstock, the broodstock requires robust physique, obvious strain characteristics, and sexual maturity.

[0032] Identification of male and female broodstock: The female broodstock is plumper than the male broodstock. The abdomen of the female broodstock is larger and rounder, and the genital opening is convex and red and swollen. A small amount of milky white semen flows out of the male broodstock when the abdomen is lightly pressed.

[0033] 2. Breeding and spawning of broodstock

[0034] Female and male broodstock are cultivated in separate ponds: the size of the cultivation pond is 6-8m long, 4-6m wide, and 1.2-1.5m deep. The stocking density is 10-15 tails per pond, fed with artificial compound feed, the feed protein is 30-35%, the daily feeding rate is 5-7%, and the glutinous rice balls are fed once a day. The water ...

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PUM

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Abstract

The invention relates to the field of koi culture, and particularly relates to a koi culture method, comprising the following steps obtaining roes of female parent fish of koi by adopting a manual primary intraperitoneal injection odinagogue, wherein the spawning efficiency time is 11-20h, and the weight relative fecundity is about 98.16/g; then, performing conventional dry-method insemination according to a volume ratio between a semen diluent and roe of 1:2 or 3:4, and waiting for 1-2min after insemination of the roes; then immediately performing artificial roe layout, with the method of slowly moving a hatching mesh or hatching cup, so that the roes can be uniformly attached to the hatching mesh to the greatest extent, and toe overlapping or leakage in a hatching barrel is reduced. After artificial hatching, performing seedling culture. By adopting the koi culture method disclosed by the invention, the fertility rate of is 98.47% on average, the hatching rate is 87.52% on average, and the death rate of the parent fish after delivery is 0. The koi culture method disclosed by the invention has important significance to the large-scale culture of the koi and promotion of the high-quality good prepotency rate.

Description

technical field [0001] The invention relates to the field of fish breeding, in particular to a breeding method for koi. Background technique [0002] In recent years, koi is a kind of large ornamental fish that is popular in the market. The fish is famous all over the world for its vigorous body, gorgeous color, gorgeous markings, chic swimming style, and docile habits. It is called "living gem in water" and "swimming artwork". But the artificial propagation method of brocade carp continues to use the method for eating carp always at present, and fertilization rate and hatching rate are all not high. [0003] Because of its strong ornamental value, the purpose of breeding koi is often to obtain higher-quality individuals, which is different from the purpose of breeding food fish, which is to pursue a larger number of offspring and faster growth rates. Therefore, the breeding of food carp It is often impossible to obtain high-quality koi by breeding koi with this method; in...

Claims

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Application Information

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IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 史东杰朱华胡金有王赛赛
Owner BEIJING FISHERIES RES INST
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