Breeding method of six palps catfish water bloom fish fry and summer fry

Abstract

The invention discloses a method for breeding the silurus soldatovi from tiny fries to summer fries. The method breeds summer fries of fine quality by adopting technical measures including sterilizing the pond, controlling the water quality, putting in the fries, managing the breeding, etc. The calces is utilized to clean up the pond in the invention so as to increase the permeability of the silt at the bottom of the pond, increase the ionized calcium in the water, facilitate the reproduction of the aquatic organisms and effectively degerm and kill harmful bacteria as well as various aquatic animals. The silt at the bottom of the pond provides natural food for the fries put in the pond, which increases the growth and the survival rates of the fries. The shading net, immensed in the herbal medicine, is arranged on the surface of the pond, which facilitates the attachment of the fish body, prevents the wind wave, and reduces the diseases to facilitate the survival of the fries. When the fry yolk bags disappear to half, the tiny fries are put in the pond for stocking. The appropriate stocking density is 30,000-50,000 fries per mu, which provides sufficient natural food for the fries. The fries have a high rate of growth and a survival rate of 95%.

Description

technical field [0001] The invention relates to a method for cultivating fish fry, in particular to a process of cultivating six-bearded catfish from water flower fry to summer flower fry with a body length of 3-4 centimeters. Background technique [0002] Liuxu catfish, also known as Huaitou catfish, is a local fish in Heilongjiang Province. The fish is tender in quality, delicious in taste, rich in nutrition, convenient to eat, and conducive to deep processing. It has extremely high edible value and certain medicinal value. Famous and high-quality indigenous varieties loved by consumers. As the fish has been polluted by natural waters in recent years, some rivers have dried up, human overfishing and other factors have caused the natural resources to be almost exhausted. The adult fish culture of the six-bearded catfish species is different from other fish fry. When the six-bearded catfish fry first enters the pond, it is not distributed in various parts of the water body ...

AI Technical Summary

Problems solved by technology

The adult fish culture of the six-bearded catfish species is different from other fish fry. When the six-bearded catfish fry first enters the pond, it is not distributed in various parts of the water body like other fry. In the absence of attachments, it mainly lies on the bottom of the fish pond. When it encounters On windy days, the water body is turbulent. First, the water body waves will cause the fry to impact with the waves, causing abdominal injuries and infection of diseases; second, the water body is turbid, and the sediment enters the gills of the fish, affecting normal breathing and causing death. The survival rate of fry is very low.

In the prior art, the survival rate of fish species with a body length of more than 3-4 cm cultivated by water flowers is only 30-32%.