1. Breeding place: The breeding place of Oncomelania hupensis should be a place with sufficient water, good water quality, humus soil and convenient transportation. It is better to have running water. Construction of aquaculture ponds.

Generally, the width of snail pond is 1.5- 1.6m, and the length is 10- 15m, which can also be influenced by the terrain. Make a ridge around the pool, and the height of the ridge is about 50 cm. Water inlet and outlet are set at both ends of the pool water, and blocking nets are installed to prevent snails from escaping.

2. Feeding and releasing: First, apply some manure in the culture pond to cultivate plankton and provide bait for snails. The amount of fertilizer applied depends on the bottom material of the snail pond. After the snails are put into the pond, they are fed with vegetables, rice bran, fish viscera or vegetable cakes and bean cakes.

Green horn and fish viscera should be chopped and mixed with feed such as rice bran. Vegetable cake, bean cake, etc. Should be soaked and softened to facilitate the feeding of snails. The feeding amount depends on the feeding situation of snails.

Generally, it is calculated as 1%-3% of the total snails, and it is fed once every 2-3 days. Feeding time every morning, the feeding position does not need to be fixed, and feed is put every other day. When the temperature is lower than 15℃ or higher than 30℃, there is no need to feed.

3. Water quality adjustment: First, the snail pond should be continuously injected with new water to adjust the water quality, especially in the breeding season. It is best to keep the water flowing, especially in high temperature season, and it is best to use running water culture. Micro-flowing water cultivation is the best in spring and autumn.

The water depth of snail pond should always be about 30 cm. The second is to adjust the pH of water. When the pH value of the pool water is low, apply 0. 15-0. 18kg of quicklime per square meter and spray it every 10- 15 days to keep the pH value of the pool water at 7-8.

Extended data:

Oncomelania hupehensis is an oviparous animal, and its reproduction mode is unique. The embryonic development and larval development of Oncomelania hupensis are completed in the mother body. It takes about a year for a fertilized egg to give birth to a small snail. Oncomelania hupensis lays eggs in batches and begins to breed in March-April every year. At the same time of producing young snails, the male and female parents mate and fertilize, and at the same time, the young snails to be produced in the next year are propagated in the mother.

Snails, like other shellfish, can't directly breathe oxygen in the air, but rely on gills to breathe, so the water quality of aquaculture should pay special attention to the adequacy of dissolved oxygen. If oxygen is insufficient, it will not only affect the growth of snails, but even suffocate and die, so always pay attention to injecting new water. In addition, snails are not afraid of the heat and cold in summer, and they will not die for a few days without water in winter, but they will die in a few hours at high temperature.

If it is cultivated in paddy field, the water body should be deepened or shaded in high temperature season to help prevent heatstroke and cool down. Although snails are not flexible, they also escape, especially at the entrance and exit, so it is necessary to make anti-escape equipment in aquaculture ponds.

The efficacy of snails:

Snails are extremely rich in calcium, and calcium supplementation runs through people's lives. Calcium should be supplemented in early childhood, because it is necessary to grow teeth, in adolescence, and in middle-aged and elderly people, so calcium is an important mineral in human bones.

Snails are also high in iron, and patients with iron deficiency anemia need iron supplementation, so there is a saying that iron supplementation equals blood supplementation. Snails are cold, so eating snails has the effect of clearing heat. Snails contain diuretic ingredients, so eating snails can eliminate edema, and diuresis helps to excrete excess sodium in the body.

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