Crayfish feed

Abstract

The invention discloses crayfish feed. The feed includes the following materials by weight: animal protein 40%-50%, plant protein 2%-5% and algae 45%-60%, wherein the animal protein includes yellow mealworms, earthworms, animal livers, river snail meat and small fish and shrimps; the plant protein includes soybean meal and corn flour; and the algae include edible fungi, lentinus edodes, kelp, spirulina and chlorella. According to the invention, the animal protein added into the feed contains rich protein which provides adequate nutritional energy for crayfish, facilitates fast growth and shortens a growth period. Meanwhile, with the addition of the algae which contain the edible fungi, the lentinus edodes, the spirulina and so on, the astaxanthin synthesis of the crayfish can be promoted, and the immune function of the crayfish can be enhanced; and the new shells of the crayfish can grow fast during a shelling period of the crayfish.

Description

technical field [0001] The invention relates to the field of feed. More specifically, the present invention relates to a crayfish feed. Background technique [0002] Crayfish: Also known as Procambarus clarkii, red crayfish and freshwater crayfish. It is shaped like a shrimp and has a hard shell. The adult is about 5.6-11.9 cm long, dark red, the carapace part is nearly black, and there is a wedge-shaped stripe on the back of the abdomen. The juvenile body is uniform gray, sometimes with black ripples. Claw long and narrow. The middle part of the carapace is not separated by mesh-like spaces, and there are obvious grains on the carapace. The frontal sword has side spines or the end of the forehead sword has notches. Crayfish are freshwater economical shrimps, which are widely welcomed by people because of their delicious meat. Because of its omnivorous nature, fast growth rate and strong adaptability, it forms an absolute competitive advantage in the local ecological ...

AI Technical Summary

Problems solved by technology

The crayfish market is in great demand. In order to maximize profits in artificial breeding, a variety of chemical growth hormones are added to crayfish feed at this stage to promote the rapid growth of crayfish and shorten the growth cycle of crayfish. The chemical hormones are difficult to shorten. It is metabolized by the crayfish within a short period of time, resulting in residual hormones in the crayfish, which will cause harm to the human body after use