Feed additive and preparation method thereof

Abstract

The invention discloses a feed additive. The feed additive comprises the following raw materials: clostridium butyricum, bacillus licheniformis, lactobacillus bulgaricus, lactobacillus acidophilus, vitamin E, saccharomycetes, shell powder and radix puerariae extracts. Due to the combination of five bacteria including the clostridium butyricum, the bacillus licheniformis, the lactobacillus bulgaricus and the lactobacillus acidophilus as well as the vitamin E, the shell powder and the radix puerariae extracts, an optimal compound ratio is formed; and due to the synergistic effect of the compoundbacteria and natural Chinese herbal medicines, the advantages of all the raw materials are sufficiently exerted, a good condition is formed for the internal environment of the intestinal tract of a prawn, the florae in the intestinal tract can be regulated to be balanced, the development of the intestinal tract of the prawn is promoted, the immunological function of the prawn is improved, and theeffect of repairing the damaged intestinal wall is also achieved; and a preparation method of the feed additive disclosed by the invention is simple, matured in process, easy to master and control and convenient to popularize.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a feed additive and a preparation method thereof. Background technique [0002] The origin of Penaeus vannamei is in the waters of the Pacific coast of South America. It grows in tropical, subtropical, warm temperate, and temperate waters. It is distributed from the west coast of the Pacific Ocean to the middle of the Gulf of Mexico, mainly from northern Peru to the coast of the Gulf of Mexico. The distribution along the coast of Ecuador is the most concentrated. The cycle is one year. Penaeus vannamei has thin shell and fat body, delicious meat, high meat content and rich nutrition. Penaeus vannamei has the advantages of large size, fast growth, low nutritional requirements, and strong disease resistance. It has a strong adaptability to changes in water environment factors, has low requirements for feed protein content, and has a meat yield of over 65%. With th...

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Problems solved by technology

[0004] At present, in order to solve the above problems, the balance of intestinal flora is usually adjusted by lactic acid bacteria, etc., but the damaged intestinal wall cannot be repaired. The existing feed additives have a single function; another method is to use antibiotics and water quality improvers to Eliminating the cause of the disease and improving the environment, these treatment methods have certain effects, and the use of antibiotics will not only treat the symptoms but not the root cause, but will also lead to the emergence of drug-resistant genes. The abuse of antibiotics will lead to endogenous infections and increase in drug-resistant bacteria. Fish, shrimp Reduced immunity, destruction of normal intestinal flora and their residues in fish and shrimp and the environment, etc., the Ministry of Agriculture has banned the use of more and more types of antibiotics, and the future development trend of the aquaculture industry is the complete ban on antibiotics. The demand for research and development of alternative products is becoming more and more urgent

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