Crawfish farming method

Abstract

The invention discloses a method for culturing Crayfish. The method comprises the following steps: arranging a nursery pond and an adult shrimp pond separated by a pond on a breeding farm; ~75%, there is a circular groove in the nursery pond along the ridge toward the inner edge of the nursery pond; aquatic plants are planted on both sides of the circular groove; from early June to early September, put shrimp in the nursery pond at a rate of 30-40 catties / mu. Cultivate the seed shrimp into 2.5-4cm shrimp fry; in December or January to February of the following year, the adult shrimp pond is placed on the water to plant aquatic plants; the shrimp fry will be caught from March of the following year; from early to mid-March to April of the following year In the first ten days of the year, 5,000 to 6,000 prawns were put into the adult shrimp ponds one after another to carry out adult shrimp farming; The method for culturing Crayfish can realize the cultivation of large early prawns in a short time, help farmers to grab high prices and increase profits.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for culturing Procrastinus cruzi. Background technique [0002] The common method of cultivating Chinese mitten crab seedlings with purse seines in the pond is as follows: set up a seine seine isolation area in the same pond, and the isolation area inside the net is a pond platform for planting and protecting the black algae; In the breeding area of ​​the seedlings, the isolation stage lasts until May. After the black algae in the nets grow well, the seine nets are removed and the crab seedlings are allowed to enter the platform. At present, a small number of farmers use this method for the cultivation of Crayfish (also known as crayfish), but this method has certain defects in the cultivation of Crayfish, including: for the species of Crayfish, this method It cannot achieve the purpose of complete regional isolation; in daily management, various operations in the p...

AI Technical Summary

Problems solved by technology

In the traditional breeding mode, shrimp fry and adult shrimp are generally not separated. When the shrimp fry cannot be sold, the density of shrimp in the pond can reach a high density of more than 15,000 fish / mu at the same time, resulting in a maximum of 15,000 shrimp. It takes 30-40 days or even longer to raise small sizes of 15-20g / tail, and it takes 30-40 days or even longer, so it is difficult to achieve the effect of producing large early shrimps and selling them at high prices before May, and it is difficult to make a profit