CATDOLL : CATDOLL: What is the annual yield per mu of snail farming?

According to information from the phylum Mollusca, snails are viviparous animals. The breeding season for snails is from April to May and from September to November in the south. Female snails usually give birth in batches. Each snail can produce 20 to 30 small snails each time. After the female snail gives birth, it takes 14 to 16 months to reproduce again. The newly produced small snails weigh 0.5 to 1.5 grams. After 6 months, they can weigh more than 3 to 5 grams, and 9 months can weigh about 9 grams. It is necessary to selectively catch the adult snails and keep more female snails. They can be harvested in batches. In midsummer and early autumn, the water temperature is high. Snails hide in the soil and grass at noon. They must be picked up in the morning and evening, or they can be picked up by draining the water. For every 100 female snails released, the annual output can reach 100 kilograms.

How many times a year can snails be harvested?

The growth cycle of a batch of snails from planting seeds to harvesting is about 4 months. Three batches can be harvested a year, and each batch can yield 2,000-3,000 kilograms. On average, about 8,000 kilograms can be harvested a year. Calculated at 4 yuan per kilogram, the income from snails alone is more than 30,000 yuan.

What are the costs and profits of farming snails?

cost:

1. Field snails reproduce naturally. They breed naturally in January every year and lay eggs one year later. A female snail can give birth to more than 600 offspring. This cycle repeats itself and the offspring continue to reproduce. If you want to raise meat snails, you only need to raise them for 4 months. A meat snail weighs 10 to 12 grams and costs 10 yuan per kilogram. One mu of land can produce 2,000 to 2,500 kilograms of snails.

2. Introduction fee: 60,000 young snails weighing about 100 kg are released into 667 square meters of rice fields, 4 yuan per kg, a total of 400 yuan; 1,100 large snails (3 males and 8 females, each weighing 18-20 grams) are released, weighing about 21 kg, 6 yuan per kg, a total of 126 yuan. The total seedling fee is 526 yuan.

3. Cost of cultivating aquatic feed: 1,400 kg of manure (1,000 kg of base fertilizer and 4 top dressings of 100 kg each time) is placed on 667 square meters, with an expenditure of 140 yuan.

4. Production expenses for live feed such as earthworms are RMB 100.

5. Disinfectants: 50 yuan.

6. Water and electricity costs are 30 yuan, including 22 yuan for water and 8 yuan for electricity.

7. Unpredictable expenses (the sum of items 1 to 5 above × 15%) total 126.9 yuan.

profit:

Income for the year:

① Raising young snails is profitable in the same year. 60,000 snail seedlings were released 7 to 15 days after the early rice was transplanted. By the time the late rice was harvested, they had reached the specifications for sale. With a survival rate of 90%, there were 54,000 snails in total, with an average weight of 10 grams per snail, totaling 540 kilograms. The fully ecological breeding sold them at 6 yuan per kilogram, with a total income of 3,240 yuan.

② The rice yield of 667 square meters increased by 10%, and the annual yield (two crops) increased by 160 kg. Pesticides and fertilizers were saved by 70%. The income of 667 square meters increased by 150 yuan. The total income was 3,390 yuan. 2. Expenditure in the current year: 973 yuan. After deducting the income and expenditure, the profit was 2,417 yuan. In the first year, 1,100 large snails were released and kept in the fish ditch and fish pit for breeding as seed snails in the second year. Self-breeding and self-raising can save the cost of seedlings and bring higher income.

Snails are mollusks that are easy to grow and suitable for ponds, rivers, ditches and paddy fields. Snails have the effect of clearing away heat and reducing internal heat, and are a delicious snack for people in midsummer. The yield per mu can reach about 2,000 kilograms, with an output value of 4,000 yuan. The high-yield snail breeding technology is introduced as follows:

1. Construction of snail pond

Choose a place with sufficient water source, convenient management, running water and no pollution to build a snail pond. The width of the pond is about 1.5 meters, the length depends on the terrain, generally 10-15 meters, and the depth is 30-50 centimeters. It is best to build several snail ponds in rows and grades, with inlets and outlets at the diagonal ends of the pond. And install anti-escape fences. Build a 20-centimeter-high embankment between the two ponds for walking, and lay 10-centimeter-thick fertile mud on the bottom of the pond. Aquatic plants such as wild rice stem, asparagus, water lily, and duckweed can be sparsely planted in the pond to provide shade and heat relief for the snails, and provide them with climbing habitats and bait, thereby improving the utilization rate of the snail pond. Build a 60-80-centimeter-high wall or mesh fence around the snail pond.

2. Snail Pond and Management

Generally, the release of snails can begin in late March. Snails can be purchased from the market or caught by yourself. 100-120 snails can be released per square meter, and 4 bighead carps can also be raised in the pond. Before releasing the snails, apply an appropriate amount of manure to the pond to cultivate bait organisms. After releasing the snails, feed them with vegetable leaves, rice bran, bean cakes, vegetable cakes, animal offal and other scraps. Feed the cakes after soaking them until they are softened, and chop and mix other feeds before feeding. The feeding amount is generally 1%-3% of the total weight of the snails. Feed once every 2-3 days, and adjust the feeding amount according to the growth and feeding conditions of the snails. Set up more feeding points for feeding. Do not feed when the water temperature is below 15℃ or above 30℃.

Snails rarely have diseases. The focus of daily management is to control the water and prevent ducks, cats, snakes, mice and birds from entering the pond to prey on snails. Regular inspections should be carried out to prevent snails from escaping. Snails are suitable for shallow water and micro-flowing water. The depth of the pond should be 25-30 cm. The pond water should be kept flowing during the breeding season and high temperature season. When hibernating, snails will dive into the hole, leaving only a small hole in the mud surface for breathing. In order to maintain sufficient dissolved oxygen in the water, the water should be changed once every 3-4 days.

3. Harvesting

When the snails grow to more than 10 grams, they can be harvested in batches and put on the market. When harvesting, drain the pond water and go directly into the pond to pick them up. Pay attention to selecting about 60% of the large snails as breeding snails.

I have been raising snails for several years, about 2,000 kilograms

The snail yield is about 4,000 jin per mu, but if the breeding technology is good and the water quality is good, the yield can be higher. Even if the breeding level is average, the yield can reach about 2,000 jin. Generally, snails can reach the market conditions after 5 months of breeding. Breeding snails should be carried out in places with sufficient water sources, good water quality and convenient transportation. What are the costs and profits of breeding? 1. Snails are a kind of mollusk. In the south, April-May and September-November are its breeding seasons. Female snails generally give birth in batches, and each snail can produce 20-30 small snails each time. After the female snail gives birth, it takes 14-16 months to reproduce again. The newly born snails generally weigh 0.5-1.5 grams. 2. Snails can reach more than 3-5 grams after 6 months, and about 9 grams after 9 months. 3. When fishing, you should selectively catch adult snails, keep more female snails, and harvest in batches; in midsummer and early autumn, the water temperature is high. At noon, snails hide in the soil and grass. You should catch them in the morning and evening, or you can drain them. For every 100 female snails released, the annual output can reach 100kg. 1. The growth period of a batch of snails is about 4 months, and three batches can be harvested in a year. Each batch can harvest 2000-3000 jin, and even about 8000 jin can be harvested in a year. According to the calculation of 4 yuan/jin, the income from snails is more than 30,000 yuan. 2. Snails reproduce naturally, reproduce naturally in January every year, and lay eggs a year later. A female snail gives birth to more than 600 babies, and the cycle repeats endlessly. If you want to raise meat snails, you can raise 4-month-old snails. A meat snail weighs about 10-12 grams, 10 yuan per kilogram, and one mu of land can produce 2000-2500 kilograms of snails. 3. The yield of rice can increase by 10% per mu, 160 kilograms per year, which can save 70% of pesticides and fertilizers, and increase income by 150 yuan per mu. The calculated income is 3390 yuan; the expenditure for the year is about 973 yuan, the income and expenditure are balanced, and the surplus is 2417 yuan. How to raise snails to achieve high yield? 1. Living habits: Snails like to live in waters that are warm in winter and cool in summer, with soft bottom, abundant bait and fresh water. They especially like to gather in places where the water flow is slightly slow. Snails like to live in waters with rich humus in sediments, such as lakes, ponds, puddles or slow-flowing rivers with lush aquatic plants. Snails are omnivores, mainly eating tender stems and leaves of aquatic plants, bacteria and organic debris. They like to move and forage at night. Snails start to move and eat at around 15 degrees Celsius, and the optimal temperature for growth is 20-27 degrees Celsius. When the temperature is above 30 degrees Celsius, snails will retract their bodies into their shells and stop eating, gather in the shade or dive into the soil to avoid the heat. When the water temperature exceeds 40 degrees Celsius, snails will die. When the water temperature is below 8 degrees Celsius, snails will hibernate in mud holes. When the water temperature rises to about 15 degrees Celsius in the spring of the following year, the snails will come out of their holes again to forage for food. 2. Reproductive habits. The method of distinguishing female and male snails is mainly based on the shape of their right antennae. The right antennae of male snails bend inward to the right (the bent part is the male reproductive organ). In addition, female snails are large and round, while male snails are small and long. Snails are oviparous animals, and their reproduction method is very unique. The development of snail embryos and larvae is completed in the mother's body. It takes about a year for the fertilized eggs to hatch in the mother's body. Snails lay eggs in batches and reproduce from March to April every year. The male and female parents mate and fertilize at the same time, and at the same time, the young snails to be produced next year are nurtured in the mother's body. A female snail produces about 100-150 small snails a year. 3. The release of breeding snails generally starts at the end of March, and the breeding snails can be released one after another. Ten days before releasing the snails, spread quicklime in the whole pond at a dosage of 50-100 kg per mu to remove wild fish, shrimp and other miscellaneous snails. After 3-4 days, pile organic fertilizer and cultured bait organisms in the water body for the snails to eat. Snails can be purchased from the market or collected by yourself. There are 100-120 snails per square meter, and the pond can raise 4 summer bighead carps. Before the snails lay eggs, an appropriate amount of feces should be put in the pond to cultivate bait organisms. It is best to release the snails in the early stage of snail farming. The type of snail should be fresh snails, light brown, with a thin and complete shell, and a blunt round mound. Cultured snails can be raised alone, or some silver carp and bighead carp can be raised together, or snails and loaches can be mixed. 4. The aquaculture water body is highly adaptable and has few diseases. As long as a large amount of pesticides and fertilizers are avoided, many flat rivers, beaches, potholes, rice fields, ponds and other ordinary water bodies in rural areas can be released. For example, if you want to dig a special pond for breeding, you should choose a place with convenient water source and humus soil to build a pond (if the soil is not suitable, it is best to apply mixed compost to improve it first). Keep the sediment thickness 10cm-15cm, and the area is not limited. If it is an open water body, you can plant a small amount of water lilies and water lotus on the water surface, and plant some long vines and vegetables around the pond for shade. Bamboo tails, branches, stones, grass, etc. are placed in the water for snails to live. 5. Regulating the water quality of the pond is one of the keys to the success or failure of snail breeding. First of all, in order to ensure good water quality, never use water containing a lot of iron and sulfur. Because water with too high iron content has a high mortality rate after stocking seedlings, red rust is attached to the surviving snail shells, and even the snail meat is reddish-brown. The water quality of sulfur is the same as snails, with a sulfur smell and cannot be eaten. Slightly turbid rivers or natural water bodies in ponds are the best water bodies for aquaculture. They should not be too clear and transparent, and the water body should contain rich natural bait and sufficient oxygen. Because snails are very sensitive to dissolved oxygen in the water, when the dissolved oxygen is 3.5mg/L, it doesn't eat much. It will die when it drops to 1.5mg/L. Therefore, the water for breeding must be fresh, and it is ideal to use semi-flowing water for breeding. Fresh water should be frequently injected into the snail pond to regulate the water quality, especially in the breeding season. It is best to keep the water in the pond flowing. In the hot season, it is best to use flowing water breeding. Micro-flowing water breeding is better in spring and autumn. The depth of snail water should be kept at about 30cm. 6. Feeding and management The growth is fastest in the first three to four months, then gradually slows down, and even stops growing after two years. Therefore, when breeding artificially, snails should seize the opportunity and feed them with bait to make them grow in a short time, so that the snail meat is large and soft, delicious, which is beyond the reach of natural people, and the yield is also high. In the extensive breeding in natural water bodies, as long as the water body fat is maintained and an appropriate amount of manure, chicken manure, cow manure, pig manure or straw and other organic fertilizers are applied regularly, the growth needs of snails can be met. After the snails are put in, they are fed with vegetable leaves, rice bran, bean cakes, vegetable cakes, animal offal and other leftovers. The cakes are soaked and then fed, and other feeds are chopped and mixed. The feeding amount is generally calculated as 1%-3% of the total weight of the field snails, and they are fed once every two or three days. The feeding amount is adjusted according to the growth and feeding situation of the field snails. There is no need to locate the feeding, and more feeding points are set. When the water temperature is below 15 degrees Celsius or above 30 degrees Celsius, no feeding is required. Snails do not need too much nutrition, so simply using rice bran, wheat bran and soybean powder in a ratio of 60%, 25% and 15% can be used as high-quality feed for snails. According to the feeding and climatic conditions of the snails, at a suitable temperature (20-28 degrees Celsius), the snails have a strong appetite and can be fed once every two days, with a feeding amount of 2%-3% of their body weight. When the water temperature is 15-20℃ and 28-30℃, feed twice a week, about 1% each time. When the temperature is below 15 degrees Celsius or above 30 degrees Celsius, less or no feeding is required. In the natural state, snails can grow to 6-8 grams per year, while the weight of artificially cultivated individuals can reach 12-15 grams.