Method for breeding Australian freshwater crayfishes in rice field

Abstract

The invention discloses a method for breeding Australian freshwater crayfishes in a rice field. The method comprises the following steps that a ridge of the rice field is reinforced and heightened, anannular crayfish breeding ditch is dug along the periphery of the rice field, and a water inlet ditch, a water drainage ditch and anti-escaping facilities are arranged; a temporary breeding shed in the rice field is dug; water in the field is dried, the field is dried in the sun, and crayfish breeding ditches are disinfected; the water is added into the crayfish breeding ditches, vallisneria natans and hydrilla verticillata are planted, rice is subjected to transplanting seedlings, and crayfish seeds are put; crayfish food is fed regularly and quantitatively and in a fixed point, and the crayfish food is put onto the peripheral side of the crayfish breeding ditches; the water quality is detected every week, and the water is changed as required; and crayfish catching is carried out in lateOctober, rice ears grow up, and rice harvesting is carried out after field drying. The vallisneria natans and the hydrilla verticillata are planted in the crayfish breeding ditches, the water changing frequency can be reduced, the input of the crayfish food is reduced, mutual killing among the Australian freshwater crayfishes can be further weakened, and the yield of the crayfishes is increased.the annular crayfish breeding ditches are dug on the periphery of the rice field, and substance exchange between the crayfish breeding ditches and the rice field is facilitated, so that the crayfishesand the yield of the rice are increased.

Description

technical field [0001] The invention belongs to the technical field of ecological cultivation, and in particular relates to a method for cultivating Australian freshwater crayfish in rice fields. Background technique [0002] Rice-fishing comprehensive planting and breeding mainly uses the space of rice fields to organically combine rice planting and aquaculture. Through simple engineering transformation of rice fields, a rice-fish symbiosis and mutual promotion system is constructed to make rice planting and aquaculture co-exist harmoniously and achieve the following The goal of raising fields with fish, using fish to promote rice, using one water for two purposes, and yielding more harvests in one field. [0003] Australian freshwater crayfish, whose scientific name is four-ridge light-shelled crayfish, belongs to the decapod crayfish family, also known as red crayfish. It is native to Australia. It looks like a lobster in the sea. It is the most valuable freshwater econom...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the shrimps raised in rice fields are crayfish. Due to technical bottlenecks in paddy field farming of Australian freshwater crayfish, no one breeds them for the time being. Lobsters are aggressive by nature, and the situation of killing each other among the same kind is very serious, which also leads to a decrease in production

At present, in order to reduce the impact of water quality on production, the method of frequently changing water in the breeding process is generally adopted, but this also causes a waste of water resources

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