Technical methods of raising snails are very common in our life, especially in rural fields, and some people start to raise snails. So, attention should be paid to the breeding ground, feed delivery and water source regulation of snails, which are related to the survival rate of snails. Let's take a look at the technical methods of raising snails with me.

Technical method of raising snail 1

First, the choice of snail farms

Snail farms should choose places with sufficient water, good water quality, humus soil and convenient transportation. Better have running water. Construction of aquaculture pond. The specifications of snail ponds are generally1.5-1.6m wide and10-15m long, and the topography may also prevail. Make a ridge around the pool, and the height of the ridge is about 50 cm. Water inlets and outlets are set at both ends of the pool water, and blocking nets are installed to prevent snails from escaping. At the same time, planting aquatic plants such as Zizania latifolia in the middle of the culture pond can not only improve the land yield, but also create a good ecological environment for the growth of snails.

Second, stocking quantity and feeding management

1, stocking density of snails: generally, every square meter is stocked 100- 120, and at the same time, about 5 species of silver carp and bighead carp are interplanted in every square meter for main culture. The stocking time of snails is generally in March.

2. Fertilizing and feeding: firstly, some manure is applied to the culture pond to cultivate floating organisms and provide bait for the snails. Fertilization amount depends on the bottom quality of snail pond. After the snails are put into the pond, they are fed with vegetables, rice bran, fish offal or vegetable cakes and bean cakes. Green horn and fish viscera should be chopped and mixed with rice bran and other feeds. Vegetable cakes, bean cakes, etc. should be soaked and softened to facilitate the feeding of snails. The feeding amount depends on the feeding situation of the snail, and is generally calculated as 1%-3% of the total snail, and it is fed once every 2-3 days. Feeding time every morning, the feeding position does not need to be fixed, and the feed is put every other day. When the temperature is lower than 15℃ or higher than 30℃, there is no need to feed.

Third, water quality regulation:

1, it is necessary to inject fresh water into the snail pond frequently to adjust the water quality, especially in the breeding season. It is best to keep the water flowing, especially in the high temperature season, and it is better to adopt running water culture. In spring and autumn, it is better to cultivate with micro-flow water. The water depth of the snail pool should always be about 30 cm.

2. It 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 sprinkle it every 10- 15 days to keep the pH value of the pool water at 7-8.

Four, snail overwintering management

When the water temperature drops to 8-9℃, the snail begins to hibernate. During hibernation, the snail drills the soil with the top of the shell, leaving only a circular hole on the soil surface, and bubbles come out from time to time to breathe. The snail does not eat during the wintering period, but the water depth of the culture pond still needs to be kept10-15cm. Generally, water is exchanged every 3-4 days to maintain proper oxygen content.

You must be careful when raising snails, not careless.

Technical method of raising snails 2. Feeding with bait

The main kinds of artificial feeding bait are rice bran, wheat bran, vegetable cake, bean dregs and animal leftovers. Do not feed below the water temperature 15℃, and the water temperature between 20℃ and 28℃ is the most suitable for feeding and growth, so it needs to be fed in large quantities. Feeding once a day or once every other day, in the morning or evening. Feeding bait should be sprinkled all over some fixed feeding grounds.

top application

The color of snail water is preferably dark brown or light green, and the transparency is 20 cm-30 cm. The color of water changes day by day, and it meets the requirements of "fat, lively, tender and cool" with fish culture water. According to the fertilizer degree of water, it is determined whether to topdressing fertilizer or how much to apply fertilizer. The topdressing variety can be fermented manure or chemical fertilizer. No matter what kind of fertilizer is applied, a small amount of fertilizer should be used for many times to avoid excessive deterioration of water quality. Generally, the amount of topdressing manure is 100 kg-200 kg, or urea 1 kg-2 kg.

Start the aerator and change the water.

The ability of snail to tolerate hypoxia is not strong, and the dissolved oxygen in water should be kept above 4 mg/L. It is found that the fish's oxygen-deficient floating head is not sensitive to disturbance, or the snail crawls to the surface of the water in batches, which indicates that the water body is seriously oxygen-deficient, so it is necessary to start the aerator and add new water to rescue it in time, otherwise it will cause the snail to die in batches. Therefore, it is necessary to observe the water quality frequently at ordinary times, start the aerator scientifically in time and change the fresh water for adjustment in time to prevent the water quality from deterioration, aging and hypoxia, and keep the water body rich in dissolved oxygen.

Anti-escape

River snails often escape from water inlets and outlets, caves, overflowing ponds and other places, so they should be inspected frequently, especially when it rains heavily.

Observe the growth and reproduction of snail.

In the process of breeding, we should check the growth of snails at any time. If the growth rate is slow, we should find out the reasons from the methods, quality, quantity, water environment, diseases and other aspects in time, and improve at the same time. When snails are found to be born in the pond, some bait with higher nutritional value should be added for feeding.

Overwintering management

In addition to strengthening the cultivation before winter to make the snail healthy, it is necessary to deepen the heat preservation of the pool water after winter, pay attention to the water quality and prevent hypoxia.