1, aquaculture water body
The snail has strong adaptability and few diseases. As long as it avoids a large number of pesticides and chemical fertilizers, ordinary flat rivers, creeks, pits, rice fields, ponds and other ordinary water bodies in the countryside can be stocked. Keep sediment thickness 10cm-15cm, unlimited size. If it is an open body of water, a small amount of red leeks and water lilies can be cultivated on the surface of the water, and some long vine melons and vegetables can be planted on the surface of the pond for shading. Bamboo tails, branches or stones, and grass can be arranged in the water to cover the habitat of snails. In the 10 days prior to the release of snails, lime was used to remove wild fish, shrimps, and other snails at a rate of 50kg-100kg per 1/15 hectare. After 3 days and 4 days, organic fertilizers and bait-feeding creatures were fed to the snail for feeding.
2, species of screw stocking
The species of screw stocking is best done in the early stage of snail breeding. The source of snails: one is field collection and the other is market collection. Choose a lively snail with a light brown color, a thin and complete shell, and a blunt body dome. In general, 0.1kg-0.5kg of spirocarpus are placed per square meter in natural rough water, and intensive breeding ponds can be increased by 2x-3x. Cultured snails can be stocked individually, or they can be stocked with some species of clams and sturgeons, or they can adopt snails and muddy polyculture.
3, feeding and management
Extensive breeding methods in natural waters require only the maintenance of water body fatness, and the appropriate amount of manure, chicken manure, cow dung, pig manure or rice straw and other organic fertilizers can be used to meet the growing needs of snails. In the case of high-density intensive culture, artificial bait must be cast. The snail's nutrient requirement is not high. Simply use rice bran, wheat bran, and soybean meal at a ratio of 60%, 25%, and 15% to match the upper feed of snails.
According to the snail's eating conditions and climatic conditions, the snails have a strong appetite within the suitable temperature range (ie, 20°C-28°C) and can be fed once every two days. Each feeding amount is 2%-3% of body weight. When the water temperature is in the range of 15°C to 20°C and 28°C to 30°C, it is fed twice a week for about 1% each time. When the temperature is lower than 15 °C or higher than 30 °C, less or no vote.
4, daily management work
It is forbidden to inflow the water source contaminated by pesticides and chemical fertilizers; to prevent invasion by ducks, snakes, rats, birds, etc.; to promptly remove weeds and grass roots from the water. Usually take the form of micro-flowing water to maintain the water level at about 30cm. During the hot season, increase the flow of water to control the increase of water temperature and ensure that the dissolved oxygen in the water is sufficient. In cold weather, snails hibernate into the earth. At this time, the water is changed once or twice a week, and some chopped straw is sprinkled on the water to facilitate snail wintering.
5, harvest and transport
After one year's careful feeding, the young snails put in can reach 10g-20g, and those hatched in that year can reach 5g or more.
When snails are harvested, they adopt the method of catching large stocks and staying small and listing them in batches, selectively taking snails, keeping young snails, and paying attention to selecting and retaining some female snails so that natural seedlings can be replanted, and seedlings need not be put in later. According to their living habits, in the summer and autumn hot season, choose bamboo branches and grass handles that rotate in the early morning and at night on the shore or in the water body; in the winter and spring, pick a sunny day at noon. In addition, the snails can also be harvested by means of catching in the pool or picking up the drained dry pool. Snail's transportation is very simple, can be used ordinary bamboo, wooden barrels, etc., can also be packaged in woven bags, as long as the transportation to maintain the snail moist, to prevent exposure.
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