Snail outdoor open culture
Outdoor open culture is the most economical method for large-scale breeding of snails in the southern region. It has the characteristics of low investment, simple management, large output, less disease, and high efficiency. The specific methods are as follows: I. Selection of breeding sites Select lee, damp, dark, loose soil, rich organic matter-rich foothills, sloping land or wasteland for breeding grounds, so as to facilitate the growth and reproduction of snails, and also to cover the land with less soil. A layer of organic-rich humus or sand is used for culture. The soil moisture is controlled at 30% - 40%, and some gypsum powder or eggshell powder, bone meal, etc. are sprinkled on the soil to supplement calcium. The breeding area also needs to be easily drained during the rainy season. Second, the source of feed Planting dandelion, lettuce, vegetables, carrots, ramie, sweet potatoes and other plants in the breeding ground so that the snails feed on their own. At the same time also need to feed the right amount of melon, peel and concentrate feed. Concentrate feeding is the mixing of wheat bran, cornmeal, potato, yeast powder and eggshell powder into a paste. Spread it on the leaves of the cabbage and put it in the breeding ground. Let the snail feed freely or put the concentrate on food. The slot is for snails. Third, anti-escape will be 60 cm high nylon net, plastic window sand in the lower extension of the farm around buried in the upper part of the continuous bending into two right angles, the formation of "7" anti-escape nets, and in the net foot bar small The ditch makes the snail look out of the water. Or use snails to strongly evade response to 3V AC, DC or 10V pulsed electrical stimulation. Fences are made along the ground with bare conductors around the rearing area, with 6V AC and DC power supplies or 15V pulses connected across the conductors. generator. Or sprinkle a 10cm barrier with stone powder around the feed, which also has better anti-escape effect, but the lime should be filled after being washed by rain. Fourth, shading in the field around the planting of trees or high-stem crops such as sunflower, or planted scaffolding of pumpkin, loofah, beans, can also use firewood or shading nets set up shade. Fifth, daily feeding and management 1. Keep the breeding ground moist, but not water. Droughts are watered 1-2 times a day, and firewood is covered on the free floor to keep the ground moist. Pay attention to drainage during the rainy season. 2, to prevent natural enemies. The ants can use water ditch irrigation (better water on the water) to block or fish, shrimp, sugar, bones, etc. Rats can use knife drugs or mice or cats to deal with. Ukrainian species can be tied on high stalk crops and driven off with ring tones. 6. Timely Harvest When the density of the breeding area is too large, timely harvesting of the individual's larger snails; when the temperature drops to 15°C before the winter comes, all snails must be harvested in time, the size is separated, and small snails are added indoors. Warm aquaculture or concentrate wintering. After harvesting, it is also possible to plant seasonal vegetables in the farm in winter.
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