Antibiotics-free ecological breeding method for crayfishes

Abstract

The invention relates to the technical field of aquaculture, in particular to an antibiotics-free breeding method for crayfishes. The antibiotics-free breeding method for the crayfishes comprises thefollowing steps that young crayfishes are put into a breeding pond, and feed, biological fertilizer, microbial bottom improvement substance, water quality regulator and algae cultivation substance areput into the breeding pond in the breeding process. According to the method, with breeding environment improvement and micro-ecological health care as principles, antibiotics, hormones or exogenous chemical drugs are not needed in the breeding process, the maintenance of aquatic plants in the breeding pond is improved, organic sewage at the bottom of the breeding pond is dissolved and oxidized, and the bottom dissolved oxygen is increased; organic matter, residual bait, excrement and the like are decomposed, the disease resistance and stress resistance of the crayfishes are improved, breedingof water-extraction beneficial algae is promoted, and the pH value is stabilized; waterborne plankton is cultivated, the algae are stabilized, the water is rich in plankton, capable of keeping flowing, tender and fresh, the breeding environment in the growth process of the crayfishes is improved, the survival rate of the crayfishes is increased, and the health condition of the crayfishes is improved.

Description

technical field [0001] The invention relates to the technical field of aquatic product cultivation, in particular to an antibiotic-free ecological cultivation method of crayfish. Background technique [0002] Crayfish are also called Procambarus clarkii, red crayfish and freshwater crayfish. They are shaped like shrimps and have a hard shell. The adult body is about 5.6-11.9 cm long, dark red, the carapace is almost black, and there is a wedge-shaped stripe on the back of the abdomen. Crayfish is a freshwater economical shrimp with high nutritional value and contains 8 essential amino acids needed by the human body. It is widely welcomed by people because of its delicious meat, so the breeding technology of crayfish is developing rapidly. [0003] Due to the obvious economic benefits of using antibiotics in the breeding process of crayfish, and the poor health of crayfish under high-density and large-scale farming conditions, crayfish farming generally relies on antibiotics,...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of antibiotic-free ecological cultivation method of crayfish, to solve the common dependence on antibiotics in the crayfish culture existing in the prior art, and the abuse of antibiotics beyond the limit and beyond the species is common, resulting in commercial crayfish The high level of antibiotic residues in China is a technical problem that seriously threatens food safety

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