Efficient culturing method for grass carp

Abstract

The invention discloses an efficient culturing method for grass carp. The method includes the steps of (1) cultivating fingerling, wherein cultivating fingerling includes fry throwing and breeding; (2) dividing the fingerling into ponds, wherein after the fingerling is bred for 15-20 days, the fingerling with the body weight larger than 50 g is screened out and bred in a single pond, the fishpond is disinfected, water is injected into the fishpond by 1.5-1.7 m, 15000-20000 fries are thrown into the water surface of each mu, and the fingerling is immersed in 3% salt water for 3-5 min; (3) breeding the fingerling, wherein the fingerling is fed with fodder twice a day, the fact that the fingerling eats up the fodder within 1-1.5 hours is taken as the criterion of the feeding amount each time, and the fingerling fodder comprises, by weight, 15% of fish meal, 40% of soya-bean cakes, 30% of vegetable cakes and 15% of wheat flour; the fingerling is thrown into a mature fish pond after being fed for 20-25 days and can be cultured into marketable fish in the same year. By means of scientific fingerling cultivation, the grass carp grows efficiently, it is ensured that the marketable fish can be obtained in the same year, and the annual output of the grass carp is effectively increased.

Description

technical field [0001] The invention relates to the field of culture technology, in particular to a high-efficiency culture method for 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. In the existing grass carp breeding methods, no attention is paid to the breeding process of grass carp fingerlings, and the lack of scientific fish fingerling breeding management will easily lead to a decrease in the growth rate of grass carp, making it difficult to ensure the production of commercial fish in the year, and the annu...

AI Technical Summary

Problems solved by technology

In the existing grass carp breeding methods, no attention is paid to the breeding process of grass carp fingerlings, and the lack of scientific fish fingerling breeding manageme