Composite immunopotentiator for freshwater crustacean and application method of composite immunopotentiator

Abstract

The invention provides a composite immunopotentiator for freshwater crustacean and an application method of the composite immunopotentiator. The composite immunopotentiator is prepared from the following raw materials in parts by weight: 20 to 25 parts of liquorice root, 20 to 25 parts of rhizoma coptidis, 15 to 20 parts of honeysuckle flower, 15 to 20 parts of fructus lycii, 14 to 23 parts of allicin, 0.1 to 0.5 part of peptidoglycan, 0.1 to 0.5 part of chitosan, 2 to 5 parts of vitamin C and 1 to 3 parts of vitamin E. The immunopotentiator disclosed by the invention is uniformly added into an aquatic animal feed according to the weight ratio of 1%, so that the non-specific immunity of aquatic animals can be obviously improved, and the total blood cell number, the phagocytic percentage, the activity of lysozyme, superoxide dismutase, acid phosphatase and alkaline phosphatase of freshwater crustacean can be obviously improved; the death rate of the freshwater crustacean is obviously reduced. The composite immunopotentiator provided by the invention can play a better immunoregulation role than a single component, and has an obvious growth promotion effect.

Description

technical field [0001] The invention belongs to the technical field of feed production and processing, and mainly relates to a compound immune enhancer for freshwater crustaceans and an application method thereof. Background technique [0002] Freshwater crustaceans such as river crabs and crayfish have always been popular and well-known delicacies of the people, accounting for a large proportion of the freshwater aquaculture industry. In recent years, with the continuous increase of the consumer market, the breeding intensity and area of ​​river crabs and crayfish have continued to expand, resulting in the deterioration of the environment in the aquaculture waters. Various bacteria, viruses and parasites have caused disease outbreaks of river crabs and crayfish. Affects growth and survival of freshwater crustaceans. [0003] Antibiotics or chemical drugs are often used in traditional aquatic animal disease prevention and control, which can easily lead to drug resistance of...

AI Technical Summary

Problems solved by technology

For example, for different growth stages and different breeding environments, the body's resistance to diseases varies greatly, and the dosage will also have obvious differences, and an immune enhancer may only have a better effect on a certain type or several types of pathogenic microorganisms. preventive effect

[0005] In addition, freshwater crustaceans have no specific immune boosters

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