Pond breeding method for crayfish procambrarus clarkii

Abstract

The invention relates to a method for cultivating the Krause's crayfish in pool, which comprises that preparing the pool, cultivating parental crayfish, cultivating the parent crayfish by itself and cultivating the seed. The pool preparation comprises that 1, cleaning the pool; 2, embedding organic fertilizer into the bottom and stacking the fertilizer at the slope; 3, filling water; 4, planting grass; 5, arranging tubular hidden material. And the cultivation of parental crayfish comprises that 1, disinfecting the parental crayfish; 2, cultivating the parental crayfish; 3, strengthening the cultivation. The self-cultivation of parental crayfish comprises that crossing, laying eggs, and cultivating the seed. The seed cultivation comprises that 1, spraying biological organic fertilizer into the water; 2, putting artificial feed; 3, cultivating the mature parental crayfish; 4, taking off. The invention can cultivate benthic organism to feed the parental crayfish, seed or the like, to improve efficiency and reduce pollution.

Description

technical field [0001] The invention relates to a method for cultivating freshwater economical shrimps. Background technique [0002] Procambarus clarkii is native to North America and is commonly known as freshwater crayfish. It belongs to Arthropoda, Crustacea, Crustacea, Decapod, Cricketidae in classification. It was introduced to my country in 1929 and has been widely distributed in my country. Due to the rapid growth of the market consumption and export processing quantity of Procambarus clarkii, the number of its wild resources is decreasing sharply. Therefore, increasing the production of Procambarus clarkii through artificial breeding has become an important way to meet the needs of processing, export and consumption markets. one of the important ways. At present, the pond culture method of Procambarus clarkii usually includes the preparation of the pond before stocking, stocking of broodstock, self-propagation of broodstock and larvae to grow into four major steps....

AI Technical Summary

Problems solved by technology

Its defects are: 1. The water quality is too fertile, which will easily cause the death of Procambarus clarkii due to hypoxia; 2. The ecological environment of the bottom surface of the pond is deteriorated by the pollution of organic fertilizers. In order to obtain oxygen and living space, Procambarus clarkii is concentrated in large numbers. In the shallow water area of ​​the pond slope, the result is a substantial increase in the cannibalism rate, and it is difficult to increase the aquaculture output; 3. The aquatic plants at the bottom of the pond can be used as feed for Procambarus clarkii, and at the same time it can improve the ecological environment of the water body and serve as a When a large amount of organic fertilizer is dissolved in the water, the transparency of the water body will be greatly reduced, making it difficult for the aquatic plants at the bottom of the pond to survive due to the lack of light.

Raising Procambarus clarkii in ponds lacking aquatic plants not only grows slowly, but also has a high rate of cannibalism, and the ecological environment of the pond is easy to deteriorate; 4. After the water quality of the pond deteriorates, a large amount of water needs to be changed, and the energy consumption increases; 5. Livestock manure Fermentation at the bottom of the water mainly plays the role of fertilizer and water. Not only is there a large amount of fertilizer waste, but also the water pollution caused will affect the feeding of Procambarus clarkii on artificial feed, and the feed utilization rate will decrease, which will eventually affect the production of Procambarus clarkii aquaculture. improvement

Due to the existence of the above-mentioned defects, the cost of the existing Procambarus clarkii pond culture method is high, the output is low and the benefit is not ideal enough