Prawn feed additive, preparation method thereof and composite feed containing additive

Abstract

The invention discloses a prawn feed additive, a preparation method thereof, and a composite feed containing the additive. The additive comprises the following raw materials: astragalus, rheum officinale, Codonopsis pilosula, isatis root, humifuse euphorbia herb and gallnut. The additive may also comprise a synergist. The preparation method comprises: weighing various raw materials according to weight percentage; crushing the raw materials; and feeding the various raw materials into a mixer in turn, and uniformly mixing. The composite feed containing the feed, wherein the weight percentage of the additive is 1 to 3 percent. According to the technical scheme provided by the embodiment of the invention: the additive is made according to a formula of Chinese herb medicine, avoids arousing medicine resistance and producing toxic and side effect, prevents medicine residue in prawns, can obviously increase the growth speed of the prawns and improve the immune activity and disease resistance of the prawns, has high resistance for vibrio anguillarum which is pathogenic bacterium, protects the prawns against diseases, greatly improves survival rate and obviously improves production benefit.

Description

technical field [0001] The invention relates to the technical field of prawn farming, in particular to a prawn feed additive, a preparation method and a compound feed containing the additive. Background technique [0002] Prawn (Prawn) belongs to crustacean, is a kind of famous and precious marine shrimp. There are many species produced in the oceans around the world, including Chinese prawns, Japanese prawns, monodon prawns, Moji prawns, long-haired prawns, vannamei, and short ditch prawns. Prawns are popular among people because of their rich nutrition, soft meat and easy digestion. Due to the depletion of marine fishery resources, people's demand for prawns is increasingly dependent on artificial farming. Therefore, the worldwide prawn farming industry is developing rapidly. At present, there are many kinds of prawns cultured in my country, mainly Litopenaeus vannamei, Penaeus chinensis and Penaeus japonicus. The annual output of prawns in my country is nearly 1.3 milli...

AI Technical Summary

Problems solved by technology

[0003] The disease problem of prawns has always been the bottleneck that hinders the sustainable development of prawn farming, especially with the rapid development of prawn farming and the improvement of intensive farming, as well as the use of artificial feed, large-scale outbreaks often occur during the farming process. The phenomenon of epidemics and mass deaths, and the traditional method of disease prevention and control with antibiotics and chemical drugs as the main means can no longer meet the demand

The reason is that on the one hand, a large number of antibiotics and chemical drugs are used, and after being ingested into the shrimp body, a large amount of chemical drugs and antibiotics will be distributed to various tissues and organs along with the blood circulation, and the immunity of the shrimp will be gradually weakened, and it is also easy to Cause pathogens to develop drug resistance, reduce the control effect, and significantly increase the cost of control; on the other hand, due to the existence of drug residues, it directly affects the health and environmental safety of consumer groups, and also restricts the export competitiveness of my country's shrimp aquatic products.

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