Early breeding cultivating method of silurus meridionalis chen parent fish

Abstract

A method for breeding parent fish of Silurus Meridionalis Chen is disclosed. Each group of the parent fishes is bred within water of 10 - 20 square meters area, and the breeding pool has an area between 250 and 350 square meters. An animal food or a mixed feed combined with fresh fish meat mash is fed regularly. The parent fishes are stimulated regularly with running water and the flow rate and the times of the running water is increased gradually. The maturation according to present invention is 25 days shorter than that of prior art, and the ratio of maturation is up to 90% or more.

Description

Technical field: [0001] The present invention is related to the early breeding and breeding method of catfish broodstock. Background technique: [0002] The southern catfish (Silurus meridionalis Chen), also known as the large-mouth catfish, was once called the southern large-mouth catfish (Silurus soldatovi meridionalis 1977). It belongs to the Siluriformes, Siluridae, and the genus Silurus in taxonomy. Large, its end has reached the lower edge of the eyeball, so it is called the big mouth catfish. [0003] The largemouth catfish is mainly produced in the big rivers of the Yangtze River Basin, and the Minjiang River and the Pearl River are also distributed. Commonly caught individuals weigh 3 to 5 kilograms, and the largest record is more than 40 kilograms. Therefore, it is one of the large economic fishes. The meat of the catfish is tender, fat but not greasy, without intermuscular thorns, and has certain medicinal and nourishing value, so it is favored by consumers at h...

AI Technical Summary

Problems solved by technology

But because it is a ferocious carnivorous fish, its production cannot be greatly increased by increasing the natural resources of rivers, and it can only meet the needs of society through artificial breeding.