Compound feed for high-density cultivation of grass carps

Abstract

The invention relates to a compound feed for high-density cultivation of grass carps. The compound feed comprises the following raw materials in weight percentage: 15-25% of wheat shorts, 10-25% of distillers dried grains and soluble DDSG, 3-8% of fish meal, 8-18% of bean pulp, 7-15% of peanut meal, 5-12% of rapeseed meal, 5-10% of full-fat rice bran, 5-8% of meat and bone meal, 2-5% of zeolite powder, 1-3% of soybean oil, 0.8-2% of special feed additive for the grass carps, 0.2-0.3% of compound vitamins, 0.2-0.3% of compound microelements and 0.5% of table salt; and the sum of the weight percentages of all the raw materials is 100%. With the adoption of the compound feed for the high-density cultivation of the grass carps disclosed by the invention, the economic benefits of the cultivation of the grass carps can be obviously improved, four diseases of grass carp in a grass carp cultivation process can be obviously improved, and the survival rate is improved by 7-9%; and the feed conversion rate in the grass carp cultivation process can be effectively improved and the growth of the grass carps is accelerated.

Description

technical field [0001] The invention belongs to the field of feed for aquatic animal breeding, and in particular relates to a compound feed for high-density grass carp culture. The compound feed can improve the immunity of grass carp and improve the "four diseases of grass carp" in grass carp culture. Background technique [0002] Grass carp is one of the four major domestic fishes in my country, and it is also the main freshwater fish species in my country. Grass carp farming has the advantages of low feed cost and obvious economic benefits, and it is very popular among consumers for its tender meat, large individuals, and few intermuscular spines. . In recent years, with the development of the aquaculture industry, grass carp farming has become a traditional grass feed feeding method, which has been transformed into a feeding method based on concentrate and supplemented by green feed. The growth period of grass carp has also been shortened from two years to one year. The e...

AI Technical Summary

Problems solved by technology

In recent years, with the development of the aquaculture industry, grass carp farming has become a traditional grass feed feeding method, which has been transformed into a feeding method based on concentrate and supplemented by green feed. The growth period of grass carp has also been shortened from two years to one year. The economic benefits have been significantly improved, but due to the high-density breeding conditions, the physique of grass carp fed with concentrated feed has decreased significantly, and the excessive breeding density will cause stress, reduce the resistance of fish to diseases, and lead to low survival rates. During the process, it is vulnerable to red skin disease, gill rot disease, enteritis disease and hemorrhagic disease. These four diseases are called "four diseases of grass carp". The outbreak of these diseases will bring a devastating blow to the grass carp breeding industry. Therefore, the large-scale and high-density farming of grass carp is greatly restricted.

Long-term practice has shown that injecting antibiotics into grass carp can prevent the "four diseases of grass carp"; however, these antibiotics will enter the human body along with people eating various fish products, which indirectly leads to the abuse of antibiotics and may cause a variety of drug-induced diseases. There may even be multidrug-resistant "superbugs"