CATDOLL : CATDOLL: Greenhouse leech raising technology (greenhouse leech raising technology video)

1. Complete set of techniques for raising leeches?

1. Site selection: The breeding shed should be built in a ventilated and sunny place. The ground of the shed should be about 10 cm higher than the surrounding ground to facilitate drainage. The soil should preferably be sandy loam to facilitate the production of grasshopper eggs. Monocotyledonous plants such as wheat or corn should be planted on the ground of the breeding shed for the grasshoppers to eat.

2. Construction area: The construction area should be determined according to the number of grasshoppers. Every 10,000 grasshoppers requires about 15 square meters. Use angle irons, wooden sticks, etc. to build the support of the shed. Then, according to the size of the shed, use gauze to make the shed cover. The bottom edge is buried in the ground, leaving a door. Zipper the door to prevent grasshoppers from running out and people from entering and leaving the shed. The height of the shed should be 1.5 to 2 meters. For heat preservation and rain protection, plastic cloth can be covered outside the shed. When breeding grasshoppers under natural conditions, the construction of the shed must be completed before the end of April.

2. What is the cost of raising leeches in one acre greenhouse?

The cost of raising leeches in a greenhouse on one acre is about 20,000 yuan.

The cost of leech breeding is calculated based on one acre of breeding area. The land rental fee is about 3,000 to 4,000 yuan, the base excavation fee is 4,000 yuan, the escape prevention net is 2,500 yuan, most of the bait can be raised by oneself, and needs to be purchased in the initial stage, the cost is about 3,000 yuan, the application of farmyard manure is 5,000 yuan, 250 kilograms of leeches are about 80,000 yuan, management fees are 12,000 yuan, disinfection is 2,000 yuan, water and electricity fees are 15,000 yuan, and the total investment is about 20,000 yuan.

3. What are the costs and profits of greenhouse leech farming?

1. The cost of raising one acre of leeches

Land cost: Before breeding, you need to rent land. Generally, the rent for one mu of land is about 500 yuan. Then you need to do the land preparation and infrastructure work. The land preparation work is about 800 yuan/mu, so the land cost is about 1,300 yuan.

Introduction cost: About 2,000 leech seedlings can be placed on one acre of land. Under normal circumstances, 200 leeches weigh about one kilogram. The current price of water quality seedlings is about 150 yuan per kilogram, so the introduction cost of leeches is about 2,000 yuan.

Feed cost: The feed cost of leeches is basically based on natural bait in the field, so we need to do a good job of bait cultivation. Apply enough base fertilizer in the field, which costs 500 yuan, and then add the initial bait cost of 200 yuan, a total of 700 yuan.

Management costs: Although the labor cost of raising one acre of leeches is negligible, it is necessary to prepare some basic management equipment, profit irrigation and drainage systems, temperature control equipment, etc. A total of about 1,000 yuan is required.

Miscellaneous expenses: When breeding, we also need to invest a lot of miscellaneous expenses, such as water, electricity, medicine, etc. Although the total cost is not much, it is also something we need to pay attention to. It adds up to about 500 yuan. Therefore, based on the above data, we can calculate that the total cost of breeding one acre of leeches is about 5,500 yuan.

2. Profit from raising one acre of leeches

Under normal breeding conditions, a leech can reproduce about 40 leeches a year, and 2,000 leeches in water will produce 80,000 leeches. However, the survival rate of water quality is very low, generally 20% is considered good. So in the end, the number of leeches that survive is about 15,000, which is converted into a weight of about 800 kilograms, and only 100 kilograms if processed into dried products. The current price of dried leeches is about 150 yuan, so the gross income of one acre of leeches is 15,000 yuan. Excluding the breeding costs, the net profit of one acre of leeches can reach nearly 10,000 yuan.

3. Breeding precautions

Leeches are generally not able to reproduce until they are about two years old. When introducing them, you should pay attention to selecting good seedlings. Young leeches are the main ones, and the weight should be kept above 20 grams. Then you should master mature breeding techniques to prevent breeding failures due to inadequate technology. Then you should do a good job of management, and often observe the growth of leeches. When there are problems that you cannot handle, you should promptly seek help from experienced people, and you should not handle them blindly. The last thing to pay attention to is the sales problem. You should understand the local market well and ensure stable sales to prevent failure to sell.

4. How to breed leeches?

Choose a place that is sheltered from the wind and facing the sun, and is convenient for drainage and irrigation to build a pond. For small-scale breeding, ditches can be dug in front of or behind the house, with a depth of 1 meter and a width of 3 meters; for large-scale breeding, ponds can be used, or digging ditches in paddy fields, with a width of 3 meters, a ridge width of 0.4 meters, and a height of 0.8 meters. The water depth in the ditch is about 0.6 meters, with water inlets and drainage at both ends of the ditch, and some stones and branches are laid at the bottom of the ditch for leeches to live.

5. How to breed leeches in plastic greenhouses?

Harvest: First, cover the outlet with a net bag, then pull out the water column from the outlet to drain the water. After the water is completely drained, clean it out manually in the pond. At the same time, pay attention to cleaning out the leeches in the net bag.

(2) Processing: Use a No. 0.8 iron wire within 2 meters in length, and string the leeches together at one-fifth of the length. The distance between leeches should be 1 cm. After stringing, straighten the wire and expose it to the sun on a pole for about 1 day, until the leeches are no longer sticky.

At this time, remove the leeches from the wire and place them on cement floor or tarpaulin to continue to be exposed to the sun until they can be broken into two pieces by hand. When the leeches are completely cool, they can be stored in the bag.

6. Is it better to raise leeches in a greenhouse or in the open air?

Of course, greenhouse farming is better.

Greenhouse farming has uniform light distribution, good thermal insulation and appropriate insulation ratio. It is not affected by seasons and production can be organized all year round, effectively extending the growth period of leeches. It has a high degree of human control and good product quality, which can improve farming efficiency. Combined with soilless farming technology, the growth and disease of leeches can be observed at any time, and it has broad application prospects.