Feed additive capable of treating hemorrhagic disease of grass carps and preparation method of feed additive

Abstract

The invention belongs to the field of veterinary medicines, and particularly relates to a feed additive capable of treating the hemorrhagic disease of grass carps. The feed additive comprises the following raw materials in parts by weight: 8-12 parts of white fringed iris, 15-25 parts of Japanese thistle herbs or roots, 12-18 parts of Chinese mosla herbs, 10-20 parts of radish seeds, 10-20 parts of ardisia japonica, 12-18 parts of thunberg fritillary bulbs, 8-12 parts of lunate peltate sundew herbs, 12-18 parts of herbal elatostema stewardii, 12-18 parts of shrub chastetree fruits, 2-8 parts of siegesbeckiae, 10-20 parts of breynia fruticosa, 15-25 parts of cephalotaxus hainanensis, 10-20 parts of herb of bunge corydalis, 3-9 parts of composite amino acids and 3-9 parts of composite vitamins. The feed additive disclosed by the invention has significant treatment effect on the hemorrhagic disease of grass carps, in the process of clinical tests, the phenomenon that the grass carps die due to the hemorrhagic disease is not found, the mortality rate caused by the hemorrhagic disease is close to zero, the treatment effect is notably increased, the total effective rate reaches 97% or above, the immunity of the grass carps can be effectively strengthened, invasion of virions can be reduced, and the treatment effect on the hemorrhagic disease of grass carps can be effectively improved.

Description

technical field [0001] The invention belongs to the field of veterinary medicine, in particular to a feed additive for treating grass carp hemorrhagic disease and a preparation method thereof. Background technique [0002] The pathogen of grass carp haemorrhagic disease is aquatic reovirus, which belongs to Reoviridae, aquatic animal Reovirus genus, 70-80nm in diameter, icosahedral spherical particles, double-stranded RNA containing 11 segments, and exists in different regions Different strains, grass carp hemorrhagic disease was discovered for the first time in 1970, and it has been popular in all major fish farming areas of the country since then. Both grass carp and herring can be affected, but grass carp is mainly harmed. Grass carp with a size of 2.5 to 15 cm can be affected, and the mortality rate of the disease is as high as 80%. Sometimes, large grass carp over 2 full years of age are also affected. In recent years, due to the neglect of immunization work in various...

AI Technical Summary

Problems solved by technology

The present invention has good antiviral effect, can effectively treat grass carp hemorrhagic disease, reduce death due to grass carp hemorrhagic disease, has no toxic side effects and drug residues, low production cost, and is convenient to use. From the perspective of existing patents and papers, There have been a large number of research reports on Chinese herbal medicine additives for grass carp hemorrhagic disease. However, due to the diversity of pathogenic bacteria and viruses, the current treatment effect of traditional Chinese medicine is not very satisfactory, and the cure rate is very low, which seriously restricts the development of aquatic products. Although the market is flooded with various therapeutic drugs, the effects are not very satisfactory, and grass carp hemorrhagic disease remains high. In view of this, the present invention aims at the characteristics of the diversity of pathogenic bacteria and viruses of grass carp hemorrhagic disease, and develops a drug against multiple pathogenic bacteria. The broad-spectrum traditional Chinese medicine additive can improve the current treatment effect of grass carp haemorrhagic disease, increase the cure rate, and effectively promote the healthy development of aquatic product aquaculture industry