Fish soluble feed protein and processing method thereof

Abstract

The invention discloses fish soluble feed protein and a processing method thereof. The processing method comprises the following steps of: mixing fish soluble and bean pulp, adding a strain into the mixture for solid-state fermentation, directly mixing the obtained product without drying and other raw materials in a formula and taking the mixed products as a feed for pigs, birds and cattle, or drying and crushing the obtained product to prepare the fish soluble feed protein used for protein raw materials in the feed industry and breeding industry after the fermentation is finished. The method has the advantages of simple process, low equipment investment and low cost; and the fish soluble feed protein is strong in fragrance and good in food attraction, improves protein content, is high in small peptide content and easy to digest and absorb, eliminates anti-nutritional factor in the bean pulp, is rich in various beneficial functional nutrient components such as probiotic and the like, plays active roles in improving weight gain and feed conversion rate, strengthening the immune function of organisms, improving production performance and the like, can greatly replace fish meal in livestock and poultry feeds and aquatic feeds, remarkably reduce feed cost, turn the fish soluble into the value from the waste, and is favorable for environmental protection as well as energy conservation and synergism.

Description

technical field [0001] The invention relates to a method for producing fermented feed protein by utilizing fish pulp, a by-product of fishmeal processing, and a processing method thereof. Background technique [0002] Fishmeal is an excellent protein feed and a strategic resource for the feed industry and aquaculture. The annual output of aquatic products in my country reaches more than 50 million tons, and the annual processing of fishmeal, which accounts for 30% of seafood, reaches 700,000 tons. The output of tilapia in my country ranks first in the world, and the main producing areas are Guangdong, Guizhou and Qiong. At present, tilapia is mainly processed into frozen fish fillets for export, and the processed leftover fish heads, fish steaks and viscera account for about 40-50% of the whole fish weight. More than %, tilapia leftovers contain a large amount of protein, fat, minerals and other substances, and have high utilization value. At present, the utilization of pro...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is: for the current fishmeal processing by-product fish paste has high feeding value, large discharge, easy to spoil and deteriorate, can not be stored fresh, causes waste of resources and environmental pollution, and the existing utilization technology has large investment, high production cost and low technical capacity. It is immature, and the protein content and nutritional value of conventional fermented soybean meal cannot reach the level of fishmeal. A method is provided to process it into high-quality feed protein through solid-state fermentation of soybean meal adsorbed with fish paste, and to achieve low-cost and large-scale preservation of fresh fish paste raw materials At the same time of storage, the soybean meal is beneficially fermented, and the obtained fermented feed protein nutrition is more comprehensive and balanced, so that the raw material of fish paste can be turned from waste to treasure, and harm can be turned into benefit.