Breeding method for goldfishes

Abstract

The invention relates to a breeding method for parent fishes, particularly to a breeding method for goldfishes. The breeding method comprises the following five stages: (1) managing of the parent fish breeding environment; (2) selecting of parent fish seedlings; (3) managing of parent fishes awaiting delivery; (4) artificial hatching of fish eggs; (5) breeding of fish seedlings. By stagedbreeding of the fish seedlings and reasonablymanaging of the parent fish breeding environment, female parent fishes easy to be fertilized and to lay fish eggs are selected; in combination with artificial fertilization, female parent fishes are guaranteed to be high in fertilization rate and pure in fish seedlings; by adopting fish nests to hatch fish eggs, the developmental state of fish eggs is easy to observe, breeding is advanced, the survival rate of fish eggs is improved, the development temperature of fish eggs is easy to control in the hatching period, the fish nests are fast in temperature rising, water consumption is less, whether fertilized eggs are good or not is easy to distinguish, the hatching rate of goldfishes is greatly improved, and the yield of seedlings is improved.

Description

technical field [0001] The invention relates to a broodstock breeding method, in particular to a goldfish breeding method. Background technique [0002] Goldfish is native to China, and its ancestor is the common silver-gray crucian carp, so it is also called "golden crucian carp". There are more than 160 species of ornamental goldfish raised in modern times. It has evolved from wild crucian carp to modern colorful ornamental goldfish. It has experienced nearly a thousand years of development Years ago, as early as the Jin Dynasty, red scale fish had been found in nature, but it was not domesticated or raised as ornamental fish at that time. During the Tang Dynasty, my country had already built a "release pond" to do good deeds. The golden crucian carp was artificially protected and entered the semi-domestication. It can be regarded as the beginning of human beings cultivating wild crucian carp into goldfish. my country is the hometown of goldfish. , and cross-breeding writi...

AI Technical Summary

Problems solved by technology

[0003] 1. The use of bad species of fish to breed, resulting in miscellaneous fry after hatching will seriously affect the survival of pure nursery, which will inevitably lead to the degeneration of the next generation of goldfish

[0004] 2. The ratio of male fish to female fish is unreasonable, resulting in a low fertilization rate of fish eggs

[0005] 3. Unreasonable selection of female fish species, resulting in the eggs not getting the nutrients needed for growth