Granulation-free fermentation feed for penaeus orientalis

Abstract

The invention discloses a granulation-free fermentation feed for penaeus orientalis. The feed is prepared by the following method: crushing corn into crushed corn, and crushing soybeans into crushed soybeans; adding water into 20%-26% by mass of the crushed corn, 32-45% by mass of the crushed soybeans, 15-20% by mass of fish meal, 0.5%-1% by mass of penaeus orientalis pre-mixed feed and the balance of bran until the water content is 38-40% by weight, performing uniform mixing, and performing sterilization to obtain a solid culture medium; and inoculating bacillus subtilis, saccharomyces cerevisiae, lactobacillus plantarum and enterococcus faecalis in the solid culture medium, putting the solid culture medium in a sterile culture room, performing aerobic culture for 50-80 h at a constant temperature of 28-32 DEG C, after aerobic fermentation is completed, putting the product in an anaerobic bag, and performing anaerobic fermentation for 60-90 h at a constant temperature of 28-32 DEG C to obtain the granulation-free fermentation feed for the penaeus orientalis. Through the two-stage fermentation technology of first aerobic fermentation and then anaerobic fermentation, the method improves nutrient value of the feed and an utilization rate of the raw materials, improves a breeding water environment, promotes digestion, absorption and utilization of the feed by the penaeus orientalis, improves intestinal health, and improves the immunity and survival rate of the penaeus orientalis, and reduces use of antibiotics during breeding.

Description

technical field [0001] The invention belongs to the field of prawn feed, and in particular relates to a granulation-free fermented prawn feed. Background technique [0002] my country's shrimp farming industry has formed a complete industrial system. With the continuous expansion of industrial farming density and scale, various diseases occur frequently. Bacterial diseases caused by Vibrio have caused huge economic losses to the shrimp farming industry. At present It has seriously restricted the development of shrimp farming in my country and even in the world. Farmers usually use a large amount of antibiotics. Although they have achieved short-term results, they have led to increased drug resistance of pathogenic microorganisms, decreased diversity of microbial communities, drug residues, and deterioration of the breeding environment. After the feed is processed by microbial fermentation, it can not only improve its nutrient absorption level, reduce the content of toxic and...

AI Technical Summary

Problems solved by technology

At present, the fermentation process of prawn fermented feed is mainly to add bacillus, yeast, aspergillus and lactic acid bacteria to the existing prawn compound feed for anaerobic fermentation (anaerobic bag or plastic film sealing), this process mainly includes the following Question: 1. Bacillus, yeast and Aspergillus are aerobic bacteria. If direct anaerobic fermentation, these aerobic bacteria will not give full play to the role of the strain itself. Through aerobic fermentation of feed raw materials, a large amount of protease, Peptides and sugars, energy for later anaerobic fermentation

2. The existing compound pellet feed is not a sterile feed. Adding these strains for direct fermentation may bring in pathogenic bacteria or increase the number of harmful bacteria. or aquaculture water environment have potential disease-causing risks

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