I am in the sixth grade, too. Snails can be used for breeding, eating, cooking, stewing and copying, and can also be used as medicine to treat influenza, cold, fever, gastroenteritis and tracheitis. If you want to eat it as medicine, it's better to braise in soy sauce. Snails are mollusks of terrestrial shellfish. Snails have lived on the earth since ancient times. There are many kinds of snails, about 25,000 species, all over the world, including thousands in China alone. Most snails are poisonous and inedible. There are about 1 1 species with edible value in China, such as brown agate snail, high-ringed snail, Hainan hard snail, wrinkled hard snail, Jiangxi Ba snail, Marba snail and white jade snail. At present, there are mainly three kinds of snails used for food and artificial breeding in the world:

First of all, French snails

Also known as grape snail, it is named because it mainly lives in grape plantations and feeds on grape stems, leaves, buds and fruits. Because it looks like an apple, it is also called an apple snail, and its scientific name is a snail. Originated in Central Europe, the snail is a round snail, and the width and length of the snail shell are almost equal. Generally, the diameter of adult snails is about 4 cm, and their shells are thick, yellowish brown and have horizontal leucorrhea.

Second, garden snails.

It is a "Halix" snail, native to France, Britain and other regions in Central and Western Europe. It usually lives in gardens or bushes, so it is called "garden snail", also called loose snail. Adult snails are slightly smaller, about 3 cm in diameter. Snail shell is thin and yellow-brown, with four purple-brown stripes, and its surface is covered with many yellow-brown spots. At present, the cultured snails in China are small and have poor economic benefits due to the variety degradation.

Third, agate snails.

People in Taiwan Province province call it dewdrop snail, and in Guangdong area it is called East snail, vegetable snail or flower snail, which belongs to agate snail. Agate snails originated in Madagascar in East Africa and later spread all over the tropics. It is the largest snail in the world, so it is also called African snail. The shape of a snail is conical, and the surface of the snail shell is covered with a yellowish brown shell with dark brown patterns. Usually, the shell of an adult snail is about 6 ~ 8 cm long, 3 ~ 4 cm wide and weighs more than 50 grams. In West Africa, especially on the Gold Coast, people regard snails as the only animal, protein. Because this kind of snail tastes delicious and is welcomed by European and American bosses, it makes the African giant snail become the staple food snail in the world today. This kind of snail is a variety suitable for growing under natural conditions in China.

At present, the widely cultivated variety in China is called white snail, which is named after its white color. It belongs to mollusks, gastropods and terrestrial shellfish. Androgyny is the best of all the edible snails in the world. White jade snail is one of the unique animals in China. It has special value, special nutrition, special flavor and special uses. It has delicious meat, rich nutrition, high protein and low fat, and is rich in more than 20 kinds of amino acids. It is also the best tonic for astronauts and athletes.

It belongs to the variation variety of agate snail. Its uniqueness lies in the different muscle colors of its head, neck and feet, but it is no different from the brown cloud agate snail in morphology and living habits, and its breeding method is basically the same, but it requires higher sanitary conditions. Snails generally feed Chinese cabbage, green vegetables, lettuce and other plants in spring; In summer, you can feed all kinds of fruits and skins, sugar cane, sunflower leaves and so on. Feed vegetable leaves, potato chips, carrots, etc. In autumn and winter. White jade snails don't eat grass and weeds, and refuse to eat foods with peculiar smell, such as onions, ginger, garlic, leeks and mustard greens. Melons and tubers should be cut into filaments or thin slices before eating, and attention should be paid to the diversity of food to prevent partial eclipse. In order to speed up the growth and improve the spawning rate, it is best to add crushed wheat bran, rice bran, bean curd residue, yeast powder, bean powder and fish meal to the feed. Mix concentrate, such as shell powder or stone powder. Common feed formula: rice bran and bran 50%, shell powder 40%, yeast powder 8%, others (fish meal, bean powder, flour), trace elements and special additives 2%. The addition of concentrate accounts for 65,438+00% ~ 65,438+05% of the total feed. Feeding should be around 6: 00 in the evening, and feeding activities should be held at.