Cultivation method capable of preventing bacterial enteritis of grass carps

Abstract

The invention discloses a cultivation method capable of preventing bacterial enteritis of grass carps. The cultivation method comprises the following steps: (1) soil improvement; (2) polyculture management: planting aquatic plants in a cultivation pond, after the aquatic plants grow for 30-40 days, introducing running water with a height of 1.0m-1.5m into the cultivation pond, carrying out water-spraying oxygenation for 6h-8h in each day, putting 8000-12000 fries into the cultivation pond, and feeding the grass carps by virtue of a grass carp feed for 12 months, wherein a water inlet pipe is arranged at the bottom of the cultivation pond, a water outlet pipe is arranged in the middle of the cultivation pond opposite to the water inlet pipe, water-spraying oxygenation equipment is mounted at each of the water inlet pipe and the water outlet pipe, and the grass carp feed which is 3%-5% of weights of the grass carps is used for feeding the grass carps in each day; and (3) diseased fish management. According to the cultivation method, the occurrence rate of bacterial enteritis can be efficiently decreased, the cure rate of bacterial enteritis is increased, and meanwhile, the content of heavy metals in soil can be remarkably decreased; and the technique is of a remarkable guiding significance to the large-scale and industrial development of the grass carps.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of fish cultivation, in particular to a cultivation method for preventing bacterial enteritis of grass carp. [0003] 【Background technique】 [0004] Grass carp is one of the main breeds in freshwater ponds. It has the advantages of fast growth and delicious meat. Grass carp is a herbivore and is an excellent species that many farmers like to breed. However, grass carp has many diseases and low survival rate, which is harmful to grass carp. The larger one, and the most common one, should be bacterial enteritis of grass carp, which causes grass carp to bleed and become inflamed and scales to fall off. Bacterial enteritis is one of the third oldest diseases of grass carp, and it causes huge economic losses to farmers every year. [0005] The manifestations and symptoms of bacterial enteritis disease are: sick fish swimming alone, the body of the sick fish turns black, loss of appetite, or even no food at all, th...

AI Technical Summary

Problems solved by technology

[0006] At present, the main method for the prevention and treatment of grass carp bacterial enteritis is to sprinkle chemical substances into the water to eliminate bacteria in the water to prevent and control grass carp bacterial enteritis. As a result, the amount of chemical substances is too much, and it is easy for grass carp to have too many chemical substances in the body. , which in turn affects the health of the eating population, and due to the occurrence of chemical sewage and domestic wastewater in the existing soil, many soils are polluted by heavy metals, and once fish are cultivated in soil polluted by heavy metals, it is easy to reduce the fish's health. Disease resistance, may also transfer heavy metals to consumers' bodies through the food chain, causing serious damage to consumers' bodies

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