Precautions for aquaculture in autumn

Strengthen water quality regulation

First of all, change the water in time, a small amount and many times, and absorb the upper and middle layers of water to increase the species of plankton, prevent and reduce the growth of blue-green algae to form "blue lake water", and the breeding ponds should be sprinkled with quicklime every half a month to increase the water quality. Calcium, generally about 10 kg per mu. For ponds equipped with aerators, it is necessary to turn on the aerators in a timely and reasonable manner according to the weather, the activities of cultured species, etc., to increase the dissolved oxygen in the water and improve the appetite and disease resistance of aquatic products.

Scientific feeding

The water temperature in the early autumn is moderate, which is the second peak period of fish growth. At this time, feeding should follow the four principles of timing, positioning, quality and quantity. Feeding should be flexibly controlled according to the weather, water quality and fish feeding situation. The feed must be nutritious and palatable. At the same time, the feed must be fresh. It is not suitable to feed moldy or rotten feed to avoid water pollution. At the same time, the bait should be fed reasonably according to the feeding habits and nutritional needs of different fish, and the daily feeding amount should be 3%-4% of the body weight of the pond fish.

Disease control

Diseases are very prone to occur in autumn, so every 20 days or so, the whole pool should be sterilized with a disinfectant, and garlic and salt should be added to the feed to prevent and control fish bacterial diseases. At the same time, it is necessary to do a good job of patrolling the pond every morning and evening, check the activities of aquatic products, and regularly check the water quality if possible. For species that are easy to escape, such as river crabs, pay attention to check the anti-escape settings and whether there are loopholes in the pond ridge, and at the same time take turns in time Catch the market.