Breeding method of grass carps

Abstract

The invention relates to the technical field of aquaculture, and particularly relates to a breeding method of grass carps. Disinfection treatment is carried out on a pond before fish fry are thrown in, and simultaneously the fish fry are disinfected, so that the lesion possibility of the fish fry is reduced. According to the invention, grading breeding is carried out on the fish fry, and the fishfry can be captured twice, so that the pond resources are fully utilized. Other fish are mixed in the cultured grass carps, so that the waste of feed is avoided. The water quality is adjusted by adopting lime water during breeding, so that the lesion of the grass carps caused by deteriorated water quality is effectively prevented. In addition, a method of combining an outer pouring method with aninner taking method can be adopted in preventing and controlling diseases and pests, so that the lesion of the grass carps is effectively controlled, the survival rate of the fry is increased, the breeding risk is reduced, and the economic benefit is increased. A feeding mode of combining formula feed with green feed is adopted for carrying out feeding, so that the meat quality of the grass carpscan be effectively improved, the taste can be improved, and the life requirement of people can be met.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for cultivating grass carp. Background technique [0002] Grass carp, also known as grass carp, is one of the unique "four major fishes" in my country. It is a typical herbivorous fish. It is rich in nutrients, high in protein, and has the characteristics of fast growth, strong adaptability and high yield. People's main dietary protein. In 2009, the national grass carp aquaculture output was 4.08 million tons, accounting for more than 40% of the total output of the "four major fishes", and its industrial status is very important. Common grass carp breeding methods are basically mature and perfect. There are intensive farming techniques such as cages, ponds, and reservoirs. The stocking models, feeding techniques, and feed formulas are also varied. for purpose. In artificial breeding, in order to improve the production performance of freshwater fish and prevent bact...

AI Technical Summary

Problems solved by technology

This method is simple and can achieve the desired effect, but its negative effects are: ① The antibiotics that have not been metabolized are accumulated in the fish, causing the antibiotics in the fish to exceed the standard, or even seriously exceeding the standard, endangering the health of consumers; ② Long-term use of antibiotic feed Additives, the immune function of freshwater fish is reduced, leading to drug resistance of bacteria, increasing the risk of disease outbreaks and the difficulty of disease control