The cage problem of breeding field snail

I think everyone is very familiar with the snail. It is a common dish in daily life, especially in the midnight snack industry. When eating midnight snacks or big stalls in summer, I think everyone will order Thoreau, so there is no need for editors to say that the market demand for it can be seen by everyone.

The cage problem of breeding field snail

The cage of field snail culture can be set up to raise snails in the ponds with large and deep water surface and good water quality. The cage for cultivating field snail is generally processed with 20-purpose mesh, the area of the cage can be large or small, but the depth of the cage is smaller than that of fish culture, and it is generally appropriate to use 50 cm. The stocking density can be slightly higher. The technique of raising snail in paddy field is simple, and it is an effective way to make comprehensive utilization and increase benefit in paddy field. The rice field is required to retain about 50 centimeters of water.

The problem of ditch in cultured field snail

The ditch of field snail culture is generally 100 cm wide and 50 cm deep. You can use idle and miscellaneous land to dig trenches to raise snails, and you can also use the watering ditches of melon fields, vegetable fields and vegetable gardens to raise snails. For newly dug ditches, drainage and irrigation facilities should be built so that water can be drained and irrigated. After opening the ditch, the ditch is divided into ditches with a fence to facilitate management. The ditch noodles cultivated by field snails can grow melons, vegetables, fruits, grasses, beans and other economic plants.

Culture techniques of field snail

1. Select sites for breeding

The snail has strong resistance, less disease, high reproduction rate, and low requirements for breeding sites. Many ditches, paddy fields and ponds in rural areas can be stocked. If it is an open pond, red duckweed, duckweed, water hyacinth and other shade can be raised on the water surface, and bamboo poles and wood strips can be inserted into the pond for field snail habitat, which can not only receive green manure on water as feed, but also raise field snail to increase income.

2. Snail collection

Field snails are mostly propagated naturally, and can be picked up from paddy fields, Zizania caduciflora and muddy water ditches or bought in the market, and then fresh snails with light brown color, thin shell and blunt body and tail can be selected as species. Generally speaking, field snails weighing 15-25 grams can reach sexual maturity and reproduce above 15 ℃. The female snail is large and round, while the male snail is small and pointed.

3. Stocking and breeding

The optimum growth temperature of field snail is 20: 25 ℃. If it is lower than 15 ℃ or higher than 30 ℃, the snail stops feeding and hibernates below 10 ℃. It can be stocked from March to November in the south of the Yangtze River. if it is stocked in the natural area, 11 species of snails can be invested per square meter (3 males and 8 females). If there is a single culture in the digging pond, there are 100,500 snails per square meter, and the water layer depth is 0.8 to 1 meter. The bottom of the pond retains a layer of silt of more than 10 centimeters, which is convenient for field snails to crawl, feed, perch and so on. Female and male snails can reproduce naturally when they are stocked together.

4. Feeding and feeding

Field snail is omnivorous, rice bran, vegetable crumbs, melon leaves, animal carcasses and commercial feed can be fed, generally to aquatic plants, soil humus, vegetables and other staple food. Fertile paddy fields, fish and snail mixed culture or water surface stocking red duckweed, green duckweed, water hyacinth and other depressions, can be little or no feed.

5. Reproduction management

The field snail is a viviparous animal. In the south, the breeding period is from April to May and from September to November every year. The female snail usually gives birth in batches. Each snail can produce 20 small snails each time. It takes 14 to 16 months for the female snail to reproduce again. The weight of the newly produced snail is 0.5 million 1.5 grams, which can reach more than 3 grams after 6 months and about 9 grams after 9 months.

6. Fishing harvest

Field snails should be selectively fished into snails when fishing, and more female snails can be harvested in batches. The water temperature is higher in midsummer and early autumn, and snails often hide in the soil and grass at noon. They must be picked in the morning and evening, and can also be picked by drainage. For every 100 female snails, the annual output can reach 100 kg.

What kind of snail is sold on the market?

There are many kinds of field snails, and the common species with high economic value are: Chinese round field snail, Chinese round field snail, bloated round field snail, long spiral round field snail and Wusuli round field snail and so on.

These five common varieties belong to two genera: Oncomelania and Oncomelania. The snail layer of the genus Oncomelania has 7 layers, which does not expand and has a spiral ribbon. the representative varieties are long spiral field snail, bloated field snail and Wusuli snail, while the shell surface of the genus Oncomelania is smooth and the snail layer expands. There are two representative varieties: Chinese round field snail and Chinese round field snail. At present, the Chinese round field snail is common in North China, the Yellow River plain and the Yangtze River basin.

Although there are many kinds of field snails, their nutritional values are all the same. In general, snail farming is done in cages. On the one hand, it is to prevent the snail from escaping, on the other hand, it is convenient for the breeders to breed, so that the snail can get a living environment suitable for its growth.