Feedstuff for killing fish and protecting crayfishes and the preparation method thereof

Abstract

The invention provides a feedstuff for killing fish and protecting crayfishes. The feedstuff consists of croton, tea bran, wheat bran, fish flour, rotenone and quicklime, wherein croton can kill most fish; the tea bran contains 12-18% of tea saponin that can dissolve the red blood cells of fish, thereby killing miscellaneous fishes, loach, fresh-water snails, fresh-water mussels, tadpoles and some aquatic insects; when taken by fish, rotenone can inhibit the mitochondrial respiratory chain, and cause disorders of the respiratory system, such as dyspnea and convulsion, slackness, paralysis, and death; fish flour contains much protein and wheat bran, and can induce miscellaneous fishes, loach, and fresh-water snails who will take croton, tea bran, and rotenone, thereby killing the miscellaneous fishes, loach, fresh-water snails and other wild aquatic lives. The feedstuff for killing fish and protecting crayfishes provided in the invention is highly sensitive and can kill rough fish, fresh-water snails, etc. in the aquaculture water area of crayfishes, thereby protecting the growth environment of crayfishes.

Description

technical field [0001] The invention relates to the technical field of shrimp feed, in particular to a feed for removing fish and preserving shrimp and a preparation method thereof. Background technique [0002] Crayfish is a lobster-like crustacean that lives in fresh water. Its scientific name is Procambarus clarkii, also known as red crayfish or freshwater crayfish. It is native to America. Crayfish are omnivorous animals, generally eating aquatic plants, algae, aquatic insects and animal carcasses. Crayfish contains a lot of protein, and the meat is soft, delicious and easy to digest. It is an excellent food for people who are weak and need to be nursed after illness. At the same time, shrimp meat is rich in magnesium, zinc, iodine, selenium, etc. Magnesium has an important regulatory effect on heart activity, can protect the cardiovascular system well, reduce blood cholesterol levels, prevent arteriosclerosis, and expand coronary arteries , Helps prevent high blood pr...

AI Technical Summary

Problems solved by technology

Usually, artificial crayfish farmers will use chemical drugs such as sodium pentachlorophenate, snail killer, and snail killer to clear ponds, but the residual amount of sodium pentachlorophenate is large, and chronic poisoning is serious, and the country has banned the use; Chemical drugs such as snail killer and snail buster are toxic chemicals, and they are usually used in large amounts, with slow effects, and there are also drug side effects such as residues for a certain period of time

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