Microbial fermented feed for crayfish and preparation method thereof

Abstract

The invention relates to a microbial fermented feed for a crayfish and a preparation method thereof. The microbial fermented feed adopts a plant base material, and the plant base material comprises the following components by weight: 15-25 parts of high-gluten flour, 15-25 parts of rice bran, 20-30 parts of soybean meal, 2-4 parts of vinasse, 20-25 parts of imported fish meal, 3-6 parts of cuttlefish paste, 0.8-1.2 parts of soybean lecithin, 1-1.5 parts of fine stone powder, 0.5-0.9 part of calcium dihydrogen phosphate, 0.05-0.15 part of choline chloride, 0.1-0.5 part of solid methionine, 0.1-0.5 part of a composite premix and 0.1-0.2 part of lysine. The method comprises the following steps: (1) crushing the plant base material, adding a compound enzyme preparation, conducting uniform mixing, and performing hydrolyzing under the conditions that a pH value is 4-5, a temperature is 35-40 DEG C and a solid-to-liquid ratio is 1: 3 to 1: 6 so as to obtain an enzymolysis product; and (2) uniformly mixing the enzymolysis product prepared in the step (1) with rumen contents, carrying out anaerobic liquid fermentation at 35-45 DEG C for 12-20 hours, and successively conducting drying, crushing and sieving to obtain a fermentation product 1.

Description

technical field [0001] The invention relates to the technical field of microbial fermented feed, in particular to a microbial fermented feed for crayfish and a preparation method thereof. Background technique [0002] Procambarus clarkii, commonly known as red crayfish and crayfish, belongs to the genus Procambarus genus of the family Crawfishidae. Procambarus clarkii is native to North America and has now spread to most parts of my country. In recent years, with the growing demand for crayfish in the catering industry, the scale of artificial crayfish farming has also continued to expand. The existing feed of Procambarus clarkii is mostly replaced by feed such as prawns, giant river prawns or river crabs. Because the food composition of Procambarus clarkii is very extensive, it usually includes organic debris, algae, aquatic plants, fish and fish eggs. Tend to herbivorous and omnivorous, the utilization rate of above-mentioned existing feed throwing something after feeding...

AI Technical Summary

Problems solved by technology

[0006] At present, due to the problem of unbalanced nutrition in crayfish feed for artificial feeding of crayfish, the crayfish produced generally have small individuals, poor color and many diseases, poor taste and nutrition, and cannot reach the nutrition of natural crayfish. The survival rate and output of crayfish are affected, and farmers cannot be guaranteed to obtain corresponding economic benefits