Functional feed suitable for imitating wild breeding of larimichthys crocea

Abstract

The invention discloses a functional feed suitable for imitating wild breeding of larimichthys crocea. The raw materials of the functional feed comprise the following components in percentage by mass:27.0-33.0% of fish meal, 2.0-5.0% of enzymolysis fish soluble extracts, 5.0-8.0% of hermetia illucens insect powder, 5.0-8.0% of fermented soybean meal, 6.0-12.0% of cottonseed meal, 2.0-4.0% of hyperglobulinemia powder, 5.0-8.0% of corn protein powder, 5.0-8.0% of meat and bone meal, 2.0-5.0% of yeast culture, 13.5-16.0% of flour, 1.5-2.0% of calcium dihydrogen phosphate, 3.0-5.0% of fish oil, 1.0-2.0% of phosphatide oil, 1.0-1.5% of a mineral premix feed, 0.2-0.4% of a vitamin premix feed, 0.3-0.4% of natural xanthophyll, 0.02-0.04% of astaxanthin, 0.02-0.03% of bile acid, 0.01-0.02% of L-carnitine, 0.15-0.3% of calcium propionate and 0.02-0.03% of ethoxyquin. According to the functional feed disclosed by the invention, the growth of the larimichthys crocea can be promoted, the breedingsurvival rate is increased, the addition quantity of the fish meal is reduced, marine resources are saved, the somatotype of adult larimichthys crocea is improved under the breeding condition througha high-fat formula, and the functional feed is suitable for imitating wild breeding of the larimichthys crocea.

Description

technical field [0001] The invention relates to the field of fish feed, in particular to a functional feed suitable for imitating wild breeding of large yellow croaker. Background technique [0002] Large yellow croaker (Larimichthys crocea), belongs to the genus of yellow croaker in the family Perciformes, Perciformes. According to the 2018 Fishery Statistical Yearbook, the national output of large yellow croaker was 174,700 tons in 2017, ranking first among marine fish culture species. , there are three problems in the current imitation wild breeding of large yellow croakers. One is the quality of adult fish. There is still a big gap between the quality of large yellow croakers raised with feed and wild large yellow croakers. Short and fat body, bulging abdomen, rough muscle texture, etc., have seriously affected the price and benefits of farmed large yellow croaker. How to improve the quality of cultured large yellow croaker has always been a hot issue in the nutrition a...

AI Technical Summary

Problems solved by technology

However, the above-mentioned inventions are not effective in improving the size of large yellow croaker. Most of the current large yellow croaker products use high-fat formula, which causes abnormal deposition in the abdominal cavity of large yellow croaker, resulting in short, fat and bulging abdomen. Therefore, large yellow croaker imitates wild breeding. There is an urgent need for a functional feed that improves body shape; secondly, the addition of fish meal in the commercial feed of large yellow croaker is more than 40%, and it is overly dependent on fish meal, and the shortage of fish meal resources will become a limiting factor for the sustainable development of large yellow croaker aquaculture. Reducing the amount of fishmeal added in the formula can save breeding costs and protect marine resources; third, the survival rate of large yellow croaker farming is low, with the survival rate of first-year-old fish being 30-40%, and the general survival rate of second-year-old fish being 60-70%. The low survival rate of yellow croaker is the main factor leading to the high cost of comprehensive farming

Images