Novel feed capable of improving breeding density of aristichthys nobilis and preparation method of novel feed

Abstract

The invention provides a novel feed capable of improving the breeding density of aristichthys nobilis and a preparation method of the novel feed, and belongs to the field of fish feeds for aquaculture. The feed consists of the following components in parts by weight: 10-20 parts of a biological fermentation feed, 35-45 parts of fish meal, 20-30 parts of bone meal, 25-35 parts of dry trash fish, 30-40 parts of fly larva powder, 5-10 parts of leech powder, 20-30 parts of flour, 45-55 parts of soybean meal (CP46%), 100-200 parts of rapeseed meal, 50-100 parts of cottonseed meal, 4-6 parts of soybean phospholipid oil, 4-6 parts of fish oil, 4-6 parts of choline chloride (60%), 4-6 parts of calcium dihydrogen phosphate, 2-4 parts of lysine (70%), 1-3 parts of methionine, 4.5-8.5 parts of composite multiple minerals, 2-3 parts of compound vitamin, 1-3 parts of table salt and 4-6 parts of an antioxidant, wherein strains of the biological fermentation feed comprise clostridium butyricum, saccharomyces cerevisiae, lactobacillus plantarum and bifidobacterium lactis. According to the novel feed disclosed by the invention, the intestinal health of the aristichthys nobilis can be strengthened,the digestion, absorption and utilization rate of nutrients of the feed can be increased, and the novel feed has the effect of promoting the intercropping status of the aristichthys nobilis, promotingthe aristichthys nobilis to be used as fish which is separately fed, improving the breeding density of the aristichthys nobilis and producing the aristichthys nobilis in a large scale; and besides, the water quality can also be improved, and the novel feed has important significance for sustainable development of green aquaculture.

Description

technical field [0001] The invention relates to the field of aquaculture fish feed, in particular to a novel feed capable of increasing the breeding density of bighead carp and a preparation method thereof. Background technique [0002] Bighead carp (scientific name: Aristichthys nobilis), also known as silver carp, fat-headed fish, baotou fish, big-headed carp, black silver carp, black carp, and male fish, is one of the four major fish in China. According to the "2020 China Fishery Statistical Yearbook", the total output of bighead carp in the country in 2019 is about 3.1016 million tons, which is second only to grass carp and silver carp. Bighead carp has a very large head, a short and blunt snout, a broad front, a head longer than the body height, a flattened body, a rounded abdomen before the base of the pelvic fin, and a narrow ventral rib from the rear to the front of the anus. Bighead carp are docile by nature and do not like to jump. Bighead carp has a short food c...

AI Technical Summary

Problems solved by technology

[0004] At present, the market demand promotes the continuous expansion of the scale of bighead carp farming, but there are very few corresponding feeds for bighead carp on the market, and most of them mainly feed on the residual bait of the main fish, which leads to unsuitable feed nutrition ratio and low feed utilization rate. low growth performance, it is difficult to feed bighead carp as an independently farmed fish, and it is impossible to increase the stocking density; in addition, improper selection of feed type also leads to adverse consequences of eutrophication in the cultured water

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