Indoor three-dimensional culture technology of loose snail

The loose snail has high fecundity, high reproduction rate and short production cycle, and its origin is western France and Algeria. Loose snails belong to the rare species of edible snails and are listed as one of the four famous snails in the world. The main producing countries are France and the United Kingdom. China is the third largest producer of snails. The loose snail is the second kind of edible snail domesticated in China. It was first introduced in the 1960s and reintroduced in 1987. It has been domesticated in the north and south of China for more than ten years. It is a kind of edible snail suitable for the development of climate in the north temperate zone of China. At present, artificially farmed loose snails have been scattered all over the provinces and regions north of the Yangtze River in China. It has been proved to be the most suitable for family breeding of rare edible snail species.

Aquaculture techniques "/ >

1. Breeding environment

The breeding room should be dark and damp. Snails like darkness, not because they don't need sunlight, but because they avoid direct glare. Such as: buildings, bungalows, basements, air-raid shelters and so on can be farmed. Each group covers an area of 1 square meter.

2. Customization of feeding boxes

From the feeding practice of snail farmers all over the country, it has been proved that there are about 100snails bred in 40*50*10cm, and two such wooden boxes can be used in a group of snails, or customized according to the actual situation (poplar, willow and birch without peculiar smell are selected as the best wooden boxes). It can also be replaced by plastic pots, brick pools and so on.

3. Requirements for raising soil

It is better to breed snails with fine river sand. Calves can add loose and moist vegetable garden soil rich in saprophytes, but they should not contain harmful eggs and should not be polluted by harmful substances such as chemical fertilizers and pesticides.

4. Temperature control

When the temperature is controlled above 12 degrees, it can mate and lay eggs. 15 ℃-25 ℃ is the most suitable temperature for reproduction. The temperature is lower than 7 degrees above zero and higher than 32 degrees, and it goes into dormancy. Therefore, it is necessary to do everything possible to ensure that the indoor temperature is above 15 degrees, which can lay more eggs and improve economic benefits. Under suitable conditions, loose snails can be bred 3-5 times a year, and each species of snail can produce more than 2 kg of commercial snails per year.

5. Ensuring humidity is the core of management

The indoor air humidity should be controlled within the range of 70% Mel 85%. The aquaculture soil is pinched into a mass and dispersed as soon as it is touched (this is the sign of 30% Mui 40% humidity). Snails can be raised with 30% soil humidity. Commodity snails, 35%, 40%, are the best. The thickness is usually 8 cm.

6. Feeding good feed is the guarantee of success

Snails are omnivorous animals, green feed: such as cabbage, lettuce, sunflower leaves, melon leaves, bean leaves, tomatoes, eggplant and so on; succulent feed: such as various melon peels, fruit tubers, cucumbers, potatoes, carrots and so on. Just add some more concentrate feed. Snails eat a wide range of food, but eat small, a group of snails eat only two large cabbage leaves a day. Breeding snails are fed once a day, and commercial snails are fed once a day. It is best to put in the feed at dusk.

7. Breeding of snails

Snails are hermaphroditic lower molluscs, in the case of snail sexual maturity, after allogeneic mating, regardless of male and female, all lay eggs. After mating, snails begin to make holes and lay eggs in about 10 days, and it takes 1-2 days to lay eggs. Collect the eggs and put them in a half bottle of wet sand and hatch naturally for 12-15 days.

8. Management of commercial snails

In the process of feeding loose snails, good management of young and growing cattle is the key to success. ① should keep the feeding box clean and hygienic. ② should maintain a reasonable density and prevent crowding, with 2000-3000 snails per square meter, and should be divided into boxes at the right time with the growth of snails. ③ should control the temperature and humidity, the temperature is generally controlled between 12 ℃-30 ℃, and the water content of the breeding soil is 40%. ④ should pay attention to ventilation.