Prevention and control of snail wasting disease in farmed field

Field snail culture is very common in China, especially in recent years, with the continuous development of aquaculture industry and the rise of midnight snack industry, the market demand of field snail is increasing. The most important thing in breeding field snail is the prevention of snail disease, so let's learn about it with Xiaobian.

The cause of emaciation disease of field snail

The soil pH is improper and the temperature is too high or too low.

Symptoms of emaciation disease of field snails

The body shrinks into the shell, eating less or not, dormant or semi-dormant for a long time.

Treatment of emaciation disease of snail

① soaked in 22-25 ℃ lukewarm water for 1 minute to make the snail protrude its head. Stir in 50 grams of concentrate feed with chloromycetin 0.25 to strengthen glucose powder and feed for 3-5 days.

② soaked the snail in 0.04% salt water or soda for 2 minutes to protrude the snail's head and feed it with dilute glucose water twice a day (glucose. 50 grams plus chloramphenicol 500000 units, 500ml of water)

Characteristics of field snail

For molluscs, the body is divided into three parts: head, foot and visceral sac, with mouth, eyes, antennae and other sensory organs on the head. There is a shell outside the body. The field snail has well-developed foot muscles and is located on the ventral side of the body. The diaphragm that clings to the sole of the foot, called the conch, is like a round lid. When an accident occurs or a rest is needed, the snail shrinks its body in the shell and covers the shell tightly with it through the contraction of the foot muscles. The blood color of field snail is special, which is white. The snail is edible, and the edible part is mainly its fleshy foot.

Field snails are distributed in most areas of the country and can be caught in summer and autumn. Chinese round field snail is common in fresh water. Medium-sized individual, shell about 44.4 mm high, 27.5 mm wide. The shell is nearly wide and conical, with 6 and 7 spiral layers, each of which expands outward, the height of the spiral part is greater than the height of the shell mouth, the body screw layer is obviously expanded, the shell tip is sharp, the suture line is deep, the shell surface is non-slippery without ribs, is yellow-brown, the shell mouth is nearly oval, the edge is complete and thin, and has a black frame edge. Disgraced as a horny sheet, smaller than the shell mouth, with concentric round growth patterns, the cochlea nucleus is located in the center of the inner lip, living environment.

Field snails generally grow in the pond or on the edge of the reservoir, if the water quality is not good, it is easy to be polluted, especially if the stool in the snail is not drained clean, there are many parasites, such as snails are the host of Schistosoma japonicum.

When raising field snails, it is very important to master the symptoms and causes of some common diseases and the most commonly used treatment methods. Only by mastering some common treatment methods can we effectively avoid disease prevention methods and reduce some unnecessary losses.