Tajsho-sanke reproducing and breeding method

Abstract

The invention discloses a tajsho-sanke reproducing and breeding method. The method comprises the steps of parent fish selection, intensive parent fish culture, parent fish egg laying, fish fry rearing, primary optimization, secondary optimization and tertiary optimization. High-quality parent fish with complete fin rays, bright body color and obvious varietal characteristics is selected, a good foundation is laid for good inheritable characters of offspring fries, on the basis of screening of tajsho-sanke, finally, the fish bodies with the good strain, healthy, strong and beautiful body type, bright color, good muscle and obvious varietal characteristics are finally selected, after three levels of optimization, and the good-quality tajsho-sanke with the yield reaching up to 7% is selected.

Description

technical field [0001] The invention relates to aquaculture technology, in particular to a breeding and breeding method of Dazheng three-color koi carp. Background technique [0002] Taisho three-color koi is a red, white and black three-color koi with black spots on the basis of red and white bred by the carp masters in Niigata area of ​​Japan. It was named Taisho because it came from the Taisho era. Three-color, those with red and black stripes on the white background are called Taisho three-color, those with red spots but no black spots on the head, and black stripes on the pectoral fins are the basic conditions. In terms of red and white appreciation points, three-color must be There are glossy blue ink spots, and these ink spots are more top-grade if they are distributed on the white space such as the shoulders. The white background is the same as the red and white requirements. It must be pure white and not yellow. The same, it must be even and thick, with clear edges...

AI Technical Summary

Problems solved by technology

[0002] Taisho three-color koi is a red, white and black three-color koi with black spots on the basis of red and white bred by the carp masters in Niigata area of ​​Japan. It was named Taisho because it came from the Taisho era. Three-color, those with red and black stripes on the white background are called Taisho three-color, those with red spots but no black spots on the head, and black stripes on the pectoral fins are the basic conditions. In terms of red and white appreciation points, three-color must be There are glossy blue ink spots, and these ink spots are more top-grade if they are distributed on the white space such as the shoulders. The white background is the same as the red and white requirements. It must be pure white and not yellow. The same, it must be even and thick, with clear edges. The erythema on the head should not spread to the eyes, nose, and cheeks. It is best to have a white background at the back of the tail knot. The stripes on the trunk are evenly distributed. It is deeply loved by people and has high requirements for its color and body shape. However, in the breeding process, there are often problems with unsatisfactory color, quality, and body shape of koi, which affects the market value of Taisho three-color koi