What are the cultivation techniques of snails, and how to breed snails better?

The snail is thick and nutritious, and it is a good bait for yellow eel after being crushed. Snails have been cultivated in large quantities in Japan. Because the method of raising snails is simple, there are few diseases, and the seedlings are easy, therefore, they can be raised at home.

The snail family in China is divided into two genera: snail and snail: snailIts spiral layer does not expand, but has a spiral ribbon, such as a long-rotating snail; Snails,The surface of the shell is smooth, and the snail layer is expanded, and there are two kinds of Chinese round snails and Chinese round snails. At present, in North China, the Yellow River Plain, and the Yangtze River Basin, it is common to see the Chinese round snail.

Snails can be monocultured or polycultured with crucian carp and loaches; It can be raised in rice fields or fallow fields, as well as in ponds or ditches. The optimal growth temperature of snails is 20 25, when it is below 15 or above 30, stop feeding activities, start hibernation in the soil below 10, and start breeding when it is above 15, each one produces about 20 30 small snails each time, and 40 50 broodstock snails above 4 instars. It takes 14-16 months to reproduce again.

The male and female of the snail are difficult to identify on the shell, mainly according to the antennae, the right antennae of the male snail is spirally curved to a certain extent (this antennae doubles as a handover), while the left and right antennae of the female snail are exactly the same shape. In the process of raising snails, there are fewer diseases and a high survival rate, but when raising snails in rice fields, it is necessary to prevent bird damage and escape, and a dense fence should be set up at the inlet and outlet. Snails are more sensitive to oxygen, and when the oxygen content is less than milligrams, they eat poorly, and they begin to die when milliliters.

Snails have a wide range of feeding properties, and when they are raised in captivity, they can be fed with rice bran, vegetable crumbs, fish meal, etc., and can also be fed with artificial compound feed. The time of snail activity is generally from 7 p.m. to 9 a.m. the next day. The method of catching is simple, just mix the defatted rice bran with the soil and throw it into several places in the paddy field, at which point the snails will gather to feed and pick them up by hand.

If stocked in paddy fields, 1500 1800 can be stocked per 10 square metres.

In the process of snail breeding, the first thing to do is to set a relatively healthy water quality, monitor the water quality in real time, and put in some nutrient solution to improve the resistance of the snail.

Monoculture and polyculture technology, monoculture is to breed snails alone, polyculture is to breed snails and loaches, herbivorous fish together, polyculture is better than monoculture, because more nutrition, snail development will be faster.

Snails like to be nocturnal and feed vigorously at night. The field snail begins to breed in April, every year in April and September is the littering season, 1 2 instar female snails can give birth to 20 30 litters, 4 instar female snails can give birth to 40 50 snails, the snails grow rapidly after birth, and can develop to sexual maturity in 1 year. Then the snail likes to eat the young leaves of aquatic plants, so when raising snails, appropriate aquatic plants such as aquatic plants are planted; Finally, the water temperature should be kept at 15-27 degrees Celsius, the temperature is too low and the snails will dive into the mud to hibernate, when the temperature is too high, water should be added to avoid the death of the snails if the temperature is too high.

The fish pond is best fed with grass, so that the snail meat is tight and delicious, I am raised like this here in Hunan, my small ** has a **** of raising snail pond, the snail is very fecund, just put a pond of snails and now 4 ponds of snails are very much, it likes to be active and foraging at night. The water temperature suitable for living in the snail is about 20 to 28 degrees Celsius, above 30 degrees Celsius will hide in the snail shell to escape the heat, and when the water temperature is 40 degrees, it will die, it has a strong adaptability to drought and cold.

The mortality rate of snails is much higher after seedlings are released, and even if there are snails alive, red rust will be attached to the snails, and some will appear reddish-brown. Secondly, the water quality is the best naturally, but it should not be too transparent, to ensure sufficient oxygen, the snail is very sensitive to the amount of dissolved oxygen in the water. It is advisable to have about 100 snails per square meter, if the ratio of male to female is 1:

1. Each female snail produces 50 litters per year, which is about 2,600 per square meter by the end of the year, and the yield per mu can reach more than 17,000 catties based on 10 grams each. If you raise snails, the density can be increased accordingly.

Feeding and stocking: The breeding pond first applies some manure to cultivate plankton to provide bait for snails. The amount of fertilizer depends on the fat and thinness of the bottom of the snail pond.

After the snails are put into the pond, they are fed with vegetables, rice bran, fish offal, vegetable cakes, bean cakes, etc. When artificial feeding, vegetable leaves, vegetables and fruits, rice bran, wheat bran, soybean cake powder and animal scraps can be used as its feed, and its diet is very mixed.

1. Breeding water bodies, snails have strong adaptability and few diseases, as long as a large number of pesticides and chemical fertilizers are avoided, many flat canals, streams, pits, rice fields, ponds and other ordinary water bodies in rural areas can be stocked. Keep the thickness of the sediment 10cm -15cm, and the size of the area is not limited. If it is an open water body, a small amount of red weeds and water lotus can be cultivated on the water surface, and some long vine melons and vegetables are planted around the pond to build a shed for shade, and bamboo tails, branches or stones, and grass are arranged in the water for snails to hide and perch.

10 days before the snail is put in, according to the dosage of 50kg-100kg per 15 hectares, the whole pond is applied quicklime to remove wild fish, shrimp and other miscellaneous snails, and after 3-4 days, organic fertilizer and breeding bait are stacked in the water body for the snail to feed. 2. Snail stocking, snail stocking is best completed in the early stage of snail breeding. **:

One is field collection, and the other is market collection. Choose a fresh snail with a light brown color, a thin and complete shell, and a blunt dome. Generally, the amount of seed snails can be increased by 2-3 times per square meter in the intensive culture pond per square meter in the natural extensive water body.

Farmed snails can be stocked alone, or some silver carp and bighead carp fingerlings can be intercultured or polyculture of snails and loaches can be adopted.

Farming snails does not require much skill. The water quality must be good. It is best to change the water from time to time to increase the oxygen content and promote the growth of snails.

For natural predators such as rats and birds, plant some duckweed near the fish pond to provide shade and improve water quality. Add some grass carp, but not too much, so that duckweed will not be eaten and fish manure can be fed to snails. Duckweed can also improve water quality.

It is important to note that snails have unacceptable water and soil problems. It is better to buy snails from the local area, otherwise it is easy to cause accidents.

1. Selection of snails.

Snails are mostly naturally reproduced, artificial breeding can be picked up from paddy fields, white ground, muddy ditches, or go to the market to buy, and then choose the color of light brown, thin shell, body round tail blunt fresh snail snail, generally weight 15-25 grams of snail will reach sexual maturity, at the temperature of 15 or more can be reproduced, the female snail is large and round, the male snail is small and sharp.

2. Sufficient silt.

The snail does not have much requirements for the breeding environment, because the snail has a strong adaptability, we only need to establish the farm in a pesticide-free, pollution-free place, the snail can grow normally, the breeding site can be made in the rice field, pond and other water bodies, but we need to ensure that there is enough silt, because the snail likes to live in the silt.

3. Change the water regularly.

The snail has good disease resistance and strong adaptability to the outside world, but in order to obtain high yields, facilitate the change of water quality and facilitate fishing, it is still necessary to set up inlet and drainage outlets and install anti-escape nets. Regular water changes are even better if it is alive. In the high temperature season, the effect of flowing water aquaculture is better, and in the spring and autumn season, it is better to take micro-flowing water aquaculture, and the depth of the snail pond water needs to be kept at about 30 cm.

When the pH value of the pool water is low, apply kilograms of quicklime per square meter and sprinkle it every 10-15 days to keep the pH value of the pool water at 7-8.

4. Feeding and feeding.

The snail is omnivorous, rice bran, vegetable crumbs, melon leaves, animal carcasses and commercial feed can be fed, generally aquatic plants, soil humus, vegetable melon skin and other staple food, fertile paddy field, fish snail polyculture or water surface stocking red weed, green weed, water hyacinth and other depressions, can be less or no feed.

Snails are mostly naturally reproduced, artificial breeding can be picked up from paddy fields, white ground, muddy ditches, or go to the market to buy, and then choose the color of light brown, thin shell, body round tail blunt fresh snail snail, generally weight 15-25 grams of snail will reach sexual maturity, at the temperature of 15 or more can be reproduced, the female snail is large and round, the male snail is small and sharp.

The snail breeding technology mainly includes breeding water temperature, breeding methods, water quality requirements, scattering straw, feeding and feeding, etc.

1. Breeding water temperature: the optimal water temperature for snail breeding is 20 -26, and the feeding is vigorous at this time. When the water temperature rises to 30 -33, the snail will dive into the soil to escape the heat, and will not eat or grow, and the fleshy chain grandchildren will become hard and boring.

Therefore, it is necessary to take care to adjust the water temperature below 26.

2. Breeding methods: The breeding methods of snails include special pond culture, paddy field and snail polyculture. The pond area of special pond culture should be small, the soil is soft, and the water source is sufficient.

Some aquatic plants such as bamboo shoots and mushrooms can be planted in the pond to make full use of the land and create a hidden ecological environment for snails.

3. Water quality requirements: water rich in iron and sulfur must not be used, otherwise the mortality rate of the snail will be high, or the shell will be attached to the red rust, which will be inedible. Particularly if the water is slightly turbid in a river or pond, it is ideal. It is rich in natural bait and oxygen.

4. Scattering straw: Sprinkle some finely chopped straw on the breeding pond, which is used to cover the holes where snails inhabit and prevent natural enemies of birds and beasts. Second, it is conducive to the reproduction of aquatic bait microorganisms as bait for snails.

5, feeding: snails are omnivorous, rice bran, crumbs, melon leaves, animal carcasses and commercial feed can be fed, generally aquatic plants, soil humus, vegetable peels and other staple food, fertile paddy fields, snail polyculture or water surface stocking red weed, green weed, water gourd shed chain reed and other depressions, can be less or no feed.

Now the number of artificially bred snails is increasing, and how to raise snails well, so that snails can bring us certain benefitsNow to provide you with a set of snail breeding management methods, see as follows:

1. Bait feeding. The main varieties of artificial feeding bait are rice bran, wheat bran, vegetable cake, bean dregs and animal scraps. The water temperature below 15 °C is not fed, and the water temperature between 20 °C and 28*C is most suitable for feeding and growth, and a large amount of feeding.

Feeding is done once a day or every other day, in the morning or evening. Feeding bait should be sprinkled all over some fixed feeding grounds.

2. Top dressing. The water color of snail farming is better than brown or light green, with a transparency of 20 cm - 30 cm, and the water color changes diurnally, and meets the requirements of "fat, live, tender and cool" of the water body of the same fish. According to the fertility of the water to determine whether to apply fertilizer or how much fertilizer, top dressing varieties can be used both fermented manure, can also use chemical fertilizer, no matter what kind of fertilizer should be applied to take a small amount of many times, so as not to spoil the water quality excessively, generally each top dressing manure amount of 100 kg - 200 kg, or urea 1 kg - 2 kg.

3. Turn on the aerator and change the water. The ability of snails to tolerate hypoxia is not strong, and the dissolved oxygen in the water should be kept above 4mg l. It is found that the fish hypoxic floating head is not sensitive to disturbance, or the snails crawl to the surface of the water in batches, indicating that the water hypoxia is very serious, and the aerator must be turned on in time and the new water must be filled for rescue, otherwise the snails will die in batches.

Therefore, it is necessary to observe the water quality frequently, turn on the aerator scientifically in time and change the new water in a timely manner to prevent the water from deteriorating, aging and hypoxia, and keep the water rich in dissolved oxygen.

4. Anti-escape. Field snails often escape from inlet and drain outlets, caves, overflowing ponds, etc., so they should be checked frequently, especially during heavy rains.

5. Observe the growth and reproduction of snails. In the breeding process, the growth of snails should be checked at any time, and if the growth rate is slow, it is necessary to find out the causes from the method, quality, quantity and water environment, disease and other aspects of feeding bait in a timely manner, and improve at the same time. If you find that there are snails born in the pond, you should add some bait with higher nutritional value to feed it.

6. Overwintering management. In addition to strengthening the cultivation of snails before winter, it is necessary to deepen the insulation of pond water after winter, pay attention to water quality conditions, and prevent hypoxia.

Raise snails at home and raise them in these ways: snails are mostly naturally reproduced, and artificial breeding can be reduced from the flood ditch area of the white ground at the foot of the paddy field or sold in the market, and then the fresh Luo seed snail with light brown shell and thin body is selected to be made; The snail does not have much requirement for the breeding environment, because the snail has a strong adaptability, we only need to establish the farm in a pesticide-free, pollution-free place, the snail can grow normally, the breeding site can be in the paddy field pond and other water bodies, but it is necessary to ensure that there is sufficient silt; The snail has good disease resistance and strong adaptability to the outside world, but in order to change the water quality and fill the leakage for high yield, it is still necessary to set up a drainage outlet and install an anti-escape net for regular water change.

It is not suitable to breed in a fish tank at home, nor should it be raised at the same time as other fish, because there are many bacteria and parasites on the snails, which will pollute the water quality. It reproduces relatively quickly and needs to be cleaned properly to avoid too many snails and too many dense. Snails like to feed at night, so prepare some food such as stems and leaves of aquatic plants and organic detritals for them, and the temperature is best kept at 20 -27.