Method for efficient crayfish breeding in paddy field

Abstract

The invention discloses a method for efficient crayfish breeding in a paddy field. The method includes steps of parent crayfish releasing, circular ditch water level lowering, circular ditch cleaning,rice harvesting, pond drying, escape preventing net arranging, primary water adding, feeding, secondary water adding and parent crayfish transferring. The paddy field is enclosed with an escape preventing net to enable young crayfishes to move in a shallow water area within the net and prevent the young crayfishes from entering deep water areas such as the a circular ditch, high feed utilizationrate is realized, and high growth speed of the young crayfishes is realized. After mating is finished, male crayfishes are all sold to protect the young crayfishes from being eaten by the male crayfishes, artificially screened female crayfishes are released into the paddy field within the net, a favorable survival environment is created for the young crayfishes, natural enemies are controlled, andthe survival rate of the young crayfishes is increased.

Description

technical field [0001] The invention relates to an efficient rice field lobster breeding method, which belongs to the technical field of lobster breeding methods. Background technique [0002] Crayfish is also called Procambarus clarkii, red crayfish and freshwater crayfish. It is shaped like a shrimp and has a hard carapace. The adult body is about 5.6-11.9 cm long, dark red, and the carapace is almost black. There is a wedge-shaped stripe on the back of the abdomen. The body of the juvenile is uniform Grayish gray, sometimes with black ripples, long and narrow claws, the middle part of the carapace is not separated by mesh-like gaps, there are obvious particles on the carapace, side spines on the frontal sword or nicks on the end of the frontal sword, it is a freshwater economical shrimp, because of its delicious meat Widely popular with people, it forms an absolute competitive advantage in the local ecological environment because of its omnivorous nature, fast growth spee...

AI Technical Summary

Problems solved by technology

[0002] Crayfish is also called Procambarus clarkii, red crayfish and freshwater crayfish. It is shaped like a shrimp and has a hard carapace. The adult body is about 5.6-11.9 cm long, dark red, and the carapace is almost black. There is a wedge-shaped stripe on the back of the abdomen. The body of the juvenile is uniform Grayish gray, sometimes with black ripples, long and narrow claws, the middle part of the carapace is not separated by mesh-like gaps, there are obvious particles on the carapace, side spines on the frontal sword or nicks on the end of the frontal sword, it is a freshwater economical shrimp, because of its delicious meat Widely popular with people, it forms an absolute competitive advantage in the local ecological environment because of its omnivorous nature, fast growth speed, and strong adaptability. Its food range includes aquatic plants, algae, aquatic insects, animal carcasses, etc. When food is scarce, it also supports itself. However, when raising crayfish, there are problems such as low lobster reproduction rate and low survival rate of shrimp seedlings, male shrimps eat small shrimps, slow growth of small shrimps in deep water areas, and low feed utilization

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