To raise crayfish, you must choose a pond mouth far away from pollution sources, and the pond mouth must be convenient for drainage and water storage. Crayfish have the habit of escaping upstream, and anti-escape facilities should be set around them, especially the water inlet and outlet, to avoid escaping. Lobster fishing varies according to the stocking season. Generally, it can be concentrated in June-July and11-1February every year. If wild lobster species are introduced, it needs to be domesticated for a period of time before stocking.

1. What conditions and techniques are needed to raise crayfish?

1, what are the conditions for raising crayfish?

(1) The first thing to raise crayfish is to choose a pond far away from the pollution source, and the drainage and storage of the pond should be convenient. Before crayfish breeding, the pond should be thoroughly disinfected. disinfection products can choose quicklime, and appropriately put plankton and plant aquatic plants.

(2) Crayfish have the habit of escaping upstream, so anti-escape facilities should be set around the pond. Especially in the water inlet and outlet, to avoid running away, crayfish can be raised after it is prepared, and the stocking density and feeding method must be paid attention to when breeding.

2. What technology is needed to raise crayfish?

(1) Scientific and reasonable fishing

Lobster fishing must be decided according to the stocking season, and it is generally possible to fish in June-July and11-1February every year. You can also catch large lobsters that meet the market specifications first, and then continue to put in new lobsters, so that you can catch lobsters all the year round.

(2) Make a good breeding plan in advance.

If wild lobster species are introduced, they must be domesticated for a period of time before being released. Generally, the first year of crayfish breeding is mainly to do a good job in breeding. Generally, shrimp seedlings are raised in summer, and lobsters that grow in the early stage are mainly stocked in autumn and winter and spring.

Second, the culture method and environment of crayfish

1, fry purchase: you must purchase shrimp fry before raising crayfish. Buy locally as far as possible to avoid long-distance transportation of seedlings. The windproof and dehydration prevention of seedlings during transportation must be done well.

2. Bait feeding: In addition to the natural bait provided by aquaculture water, artificial auxiliary bait feeding is also extremely important. When feeding crayfish, baits with different diameters and protein contents can be selected according to different growth periods, and the baits should not be fed too much.

3. Water quality management: Water quality management mainly includes water level management, water quality, dissolved oxygen, etc. The water level must be constantly adjusted according to the season, temperature, climate and crayfish growth cycle. The water quality should keep proper fatness and water color, and crayfish can grow healthily only in excellent water environment.

4. Living environment: The environment will directly affect the output of lobsters, and the PH value of the pond water should be kept between 7.5 and 8.5, and the transparency should be about 40cm during the breeding process. In order to ensure the water quality, not only fresh water can be often injected into the pool, but also lime solution should be sprinkled regularly for disinfection.