Culture density of Tutang mackerel, with culture method

Aquaculture preparation: plant some aquatic plants around the pond and disinfect the pond with quicklime before stocking. stocking density: stocking 2- 30 thousand fry per mu. Feed: snail, mussel, maggot, shrimp, red worm, earthworm, etc. Daily management: Change the water every 15 days or so. Disease control: use copper sulfate, fish fungus clear, salt water, formaldehyde solution, etc. for prevention and control.

I. Preparation for cultivation

1, first of all to choose a place to build a good breeding pond, generally can use the pond for breeding, the surrounding water resources of the breeding pond is rich, convenient drainage, water change, the bottom of the pond needs to be leveled, and then in the water inlet and drain position layout escape net.

2. Some aquatic plants can be planted around the pond, which can purify the water quality and shade. A layer of purse seine can also be arranged around the pond to avoid enemies entering. The pond can be disinfected with quicklime before stocking, which is conducive to reducing the occurrence of diseases.

II. stocking density

1. To select soil pond seedlings with good physique, health, no disease infection, no appearance and internal damage, and uniform specifications.

2. Before stocking, it is necessary to disinfect the fry: put them into dilute saline water, wash them for about 10 minutes, and then put them into the culture pond according to the density of 20,000 - 30,000 fish per mu.

III. Feeding

1, soil pond is a carnivorous omnivorous fish species, feed types are also relatively many, mainly field snails, mussels, maggots, fish and shrimp and animal viscera, these can be used to feed soil pond, if it is a need for high protein feed, you can also use red worms, earthworms and mealworms and other such feeds.

2, generally need to feed soil pond 2 times a day, respectively at about 8:00 in the morning, and about 6:00 in the afternoon, in the breeding process, but also according to the weather changes, and soil pond growth status, etc., to reasonable configuration feed ratio and feeding amount.

IV. Daily management

1, in the usual feeding management, according to the fertility of the water body, to a reasonable topdressing of organic fertilizer, conducive to the cultivation of sufficient plankton, in order to increase natural feed, during the period also need to change water frequently, generally every 15 days or so for 1 time water, to avoid deterioration of water quality.

2, if the temperature is relatively high, it is necessary to adjust the cycle of water change according to the situation, and regularly disinfect the culture pond, generally every 15-20 days or so with quicklime disinfection once.

3. Then, patrol pond management is carried out to check the growth and activities of soil pond, so as to understand the weather changes in time and take protective measures.

V. Prevention and control of diseases

1. There are many diseases occurring in soil ponds, but these fish diseases are also common and frequent, and may occur in aquaculture.

2, such as wheel worm disease, third generation worm disease, enteritis disease, water mold, small melon worm disease, urosporosis, etc., can be controlled by copper sulfate, potassium permanganate solution, fish bacteria clear, salt water, mercurous nitrate, formaldehyde solution respectively.