Fermented cold granulated feed for fish and preparation method of fermented cold granulated feed

Abstract

The invention provides a fermented feed for fish. The fermented feed is prepared through performing mixed fermentation on raw materials, composite microbes A, composite microbes B and water, wherein the composite microbes A comprise one or more of bacillus subtilis, bacillus licheniformis, bacillus coagulans and candida utilis; and the composite microbes B comprise one or more of lactobacillus acidophilus, plant lactic acid bacteria and enterococcus faecalis. According to the fermented feed for fish, provided by the invention, a two-step fermentation method is adopted, the composite microbes Aare used for performing aerobic fermentation for 2-3 days at an early stage, the composite microbes B are added at a later stage, airtight fermentation is performed for 5-7 days, and the synergisticreaction of different strains is used for degrading macromolecular protein in the raw materials and reducing the content of anti-nutritional factors; besides, a large number of bioactive substances are produced, and the fermented feed which is high in nutrient value and easy to digest and utilize is obtained; and then other feed raw materials are added, a cold granulating making technology is usedfor cooperation, and the fermented cold granulated feed is prepared, so that active beneficial factors in the fermentation process are reserved to the maximum extent.

Description

Technical field [0001] The invention relates to the technical field of aquaculture feed, in particular to a fermented cold pelletized feed for fish and a preparation method thereof. Background technique [0002] my country is rich in cakes and meal resources, among which soybean meal, cottonseed meal and rapeseed meal have the highest yields, and they are the main source of vegetable protein feed for livestock and poultry aquatic feed in my country. However, the relative molecular mass of the protein in these raw materials is relatively large, and they contain anti-nutritional ingredients such as gossypol and glucosinolate, which limit their use in feed. Using multiple strains to ferment a variety of mixed raw materials, use the synergistic effect of different strains to degrade macromolecular proteins in the raw materials and reduce the content of anti-nutritional factors, while accumulating biologically active substances such as reducing sugars and lactic acid to obtain nutriti...

AI Technical Summary

Problems solved by technology

This has brought great hidden dangers to the current aquaculture

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