Five key points of River Crab Culture in October

When we enter the later stage of river crab culture in October, we should strengthen the culture management to ensure that the river crab can promote fattening and growing darts.

1. Strengthen daily management

Patrol the pond three times a day, one in the morning, one in the middle and one in the evening, mainly to observe the dynamics of river crabs in the pond. In the morning, patrolling the pond to observe whether the crab came ashore and whether it was lack of oxygen, at noon to observe the water quality and measure the water temperature in the crab pond, and in the evening mainly to check the activity and eating of the crab, especially in the high temperature season. Often patrol the pond to observe whether the crab has hypoxia, death, diseases and ciliates.

2. Strengthen the management of aquatic plants.

Strengthen the management of aquatic plants in the pond, mow the grass at the right time, maintain reasonable density and distribution, ensure proper coverage and smooth flow. If it is found that the aquatic plants are rotten or floating, they should be removed in time. If the aquatic plants have sludge, they should be decontaminated by changing water to keep the water fresh and create a good pond environment.

3. Timely injection and change of water to regulate water quality

Maintain an appropriate amount of water, once every 10 seconds for 15 days, once a week, 30 cm each time, and often sprinkle with biological agents to regulate the water quality, so that the river crab has a good living environment.

4. Stick to scientific input.

According to the weather, water temperature, season, water quality and the growth and feeding of river crabs, we should flexibly grasp the amount of bait and adhere to the principle of "four decisions and four looks" to make river crabs eat well and promote fat and fat.

5. Disease control

Adhere to the principle of giving priority to prevention and combining prevention and treatment, sprinkle quicklime once every 15 days to prevent diseases, use "Xian Chong Jing" to kill ciliates, disinfect them with chlorine dioxide every other day, and treat the diseases with drugs appropriately. It is found that some ciliates are treated with "Xianchongjing", and diseases such as black gills, rotten gills and liver necrosis are treated with iodine preparations.