What are the breeding techniques of mantis shrimp? How to catch mantis shrimp?

Mantis shrimp is a common shrimp, very common in coastal areas, its meat is delicious, loved by the broad masses, so more and more people breed mantis shrimp. So what are the breeding techniques of mantis shrimp? How to catch mantis shrimp?

1. Mantis shrimp's culture techniques

1. Pond requirements

The area is 3 to 6 mu, rectangular, large slope, complete intake and drainage facilities, with oxygen facilities, the best way to inflatable pump with sand air head, inflatable power of 1.1 kilowatts per 3 mu. Old fish ponds, shallow ponds or flat well ponds excavated by rice fields can be used, with an area of 8 mu, a small pond slope and a water depth of 0.6 million meters on the field board, without the need for oxygen-increasing facilities.

2. Culture technology

The stocking time of mantis shrimp in spring is from December of last year to February of the following year. The specification of mantis shrimp seedlings is 4001200tails / kg, and the stocking amount is 2530kg per mu. In the middle of April, we began to catch large and small land, and then fishing in dry ponds in June. Feed with mantis shrimp full-price pellet feed mainly, small miscellaneous fish and other fresh feed as a supplement, the general yield per mu is 40kg to 60kg.

Mantis shrimp pond monoculture medium-and low-yield culture model, generally released in December last year, specifications for 400 million / kg shrimp fry, 15 to 20 kilograms per mu. The following spring catches big and stays small, and the breeding season uses mantis shrimp of the pond itself to mate and reproduce young shrimps, with a general annual yield of 30kg to 50kg per mu. This kind of breeding method can easily lead to the degradation of mantis shrimp germplasm, and the specification of mantis shrimp on the market is too small. This breeding method has the advantages of low investment and low risk, and is suitable for use in economically underdeveloped areas.

Second, how to catch mantis shrimp?

1. Net fishing: there are mainly shrimp trawls, scraping nets, shrimp scraping, shrimp copying nets, shrimp nets and so on. Shrimp mackerel is a kind of commonly used square small net fishing gear. During operation, the bait net is laid in the shallow coastal areas of ditches, ponds or lakes, making use of shrimp's habit of living in grassy areas near the water and gluttonous habits. To induce them to enter the fish to achieve the purpose of capture. Shrimp copying net is a push-type shrimp fishing gear, which is suitable for operation in shallow water. Because it has a destructive effect on mantis shrimp's habitat, it is not often used in rotation. Shrimp trawling, pickling and wading shrimp nets are all fishing gear driven by boats in large water surfaces, with a large catch, so they are suitable for operation in lakes and other waters where mantis shrimp is multiplied.

2. Shrimp fishing: shrimp carp is a kind of blocking grid and foil fishing gear used in lakes and other large waters. Bamboo is used to weave a curtain during operation, which is located on the edge of a shallow grassy lake or harbor to block the path of shrimps and induce them to enter the shrimp basket in order to achieve the purpose of capture. Now most of them use mesh foil instead of bamboo curtains. As a kind of fixed fishing gear, it is widely used in lakes.

3. Cage fishing: this is the most commonly used fishing gear in rotation fishing, including shrimp cages, ground cages and so on. Shrimp cage is a trapping cage fishing gear made of bamboo strips in the shape of "human". Fragrant food is placed in the cage during operation, and shallow water areas with many aquatic plants are placed to lure shrimp into the cage to find food so that shrimp can be caught. The ground cage is made of iron wire as the skeleton and surrounded by net clothes, showing a rectangular shape, the small one is 2 to 3 meters long, the big one is 10 meters long, its width and height is generally 20 ~ 30 × 20 ~ 30 cm, and there are lures on both sides, and there are stone dragons at the bottom, so that the ground cage sinks to the bottom, and the ground cage is generally set in the shallow water area around the pond, and the small ground cage is also equipped with bait, and its fishing effect is quite good. There is also a small square cage with a size of about 30 × 20 × 10 (cm), which is divided into two squares, one is to trap shrimp and the other is to trap and pour shrimp, and its rotation effect of catching mantis shrimp is also quite good.

4. Nest fishing handle: this is a commonly used nest fishing gear. When working, the shrimp nest made of branches and aquatic plants is placed in the water to lure the shrimp to perch, and then the mantis shrimp in the nest can be taken out with a copying net.