What is a suitable stocking density for pond catfish? With farming methods

AbstractFarming preparation: Plant some aquatic plants around the pond, and disinfect the pond with quicklime before stocking. Stocking density: Stock 20,000-30,000 fry per mu. Feed: field snails, river mussels, fly maggots, fish and shrimp, bloodworms, earthworms, etc. Daily management: Change the water about every 15 days. Disease control: Use copper sulfate, Yujunqing, salt water, formaldehyde solution, etc. for control.

I. Farming preparation

1. First, choose a site and build the farming pond well. Generally, a pond can be used for farming. The area around the farming pond should be rich in water resources, making it convenient to drain and change water. The bottom of the pond needs to be leveled, and then escape-prevention nets should be placed at the inlet and outlet.

2. Some aquatic plants can be planted around the pond to purify the water quality and provide shade and hiding places. A layer of enclosure netting can also be placed around the pond to prevent enemies from entering. Before stocking, disinfect the pond with quicklime, which helps reduce the occurrence of diseases.

II. Stocking density

1. Choose pond catfish fry with a good constitution, robustness, no disease infection, no external or internal injuries, and uniform size.

2. Before stocking, the fry need to be disinfected: place them in dilute salt water, wash for about 10 minutes, then remove them, and stock the fry into the farming pond at a density of 20,000-30,000 per mu.

III. Feeding

1. Pond catfish is a omnivorous fish species that mainly feeds on meat. There are also relatively many types of feed, mainly including field snails, river mussels, fly maggots, fish and shrimp, and animal offal. These can all be used to feed pond catfish. If high-protein feed is needed, feed such as bloodworms, earthworms, and yellow mealworms can also be used.

2. Generally, pond catfish need to be fed 2 times a day, at around 8 a.m. and around 6 p.m. respectively. During the farming process, the feed ratio and feeding amount should also be reasonably adjusted according to weather changes and the growth status of the pond catfish.

IV. Daily management

1. In ordinary feeding management, organic fertilizer needs to be reasonably applied according to the fertility of the water body, which helps cultivate sufficient plankton to increase natural feed. During this period, the water also needs to be changed frequently, generally once about every 15 days, to avoid water quality deterioration.

2. If the temperature is relatively high, the water-changing cycle needs to be adjusted according to the situation, and the farming pond should be disinfected regularly, generally once every 15-20 days with quicklime.

3. Then there is pond patrol management, checking the growth and activity of the pond catfish, so as to understand weather changes in time and take protective measures.

V. Disease control

1. Pond catfish suffer from relatively many diseases, but these fish diseases are also relatively common and frequent, and may occur in aquaculture.

2. For example, trichodiniasis, gyrodactylosis, enteritis, saprolegniasis, ichthyophthiriasis, and tail sporozoan disease, etc., can be controlled with copper sulfate, potassium permanganate solution, Yujunqing, salt water, mercurous nitrate, and formaldehyde solution respectively.