What is the biggest difficulty in leech breeding? what is the scientific breeding technology of leech?

In recent years, many friends in the aquaculture industry have changed careers, some ponds began to grow lotus roots, some directly contracted to others, but some breeding friends saw business opportunities, leech breeding. Now the breeding of leeches in many places, more and more, the market is also high, so what do you need to pay attention to in breeding leeches? Let's take a look.

What is the biggest difficulty in leech breeding?

1. The problem of variety. Although there are many varieties of leeches, the breed of leeches that can be cultivated artificially is golden leeches, which is the general name of wide-body golden leeches, light-moistened golden leeches and sharp fine golden leeches. The most suitable for artificial breeding is only wide-bodied golden leeches, and the benefits of other varieties are not very good, so they should be identified during introduction.

2. The benefit of introduction. Due to the rising market, leeches have become a low-cost and efficient breeding project, but the benefits are not very good. It is common to see that some units and individuals who sell seedlings use seedlings with poor breeding efficiency to pretend to be high-quality or purified varieties, resulting in heavy losses to farmers.

3. The specification of introduction. Leeches have the ability to reproduce only after growing for more than 2 years. No introduction when the body weight is less than 15g, and no introduction after June, so as not to introduce leeches or young leeches that have been ovulated, resulting in no benefit in that year.

Scientific breeding techniques of leeches

1. No matter using mud ponds and mud puddles in front and back of the house, or in rivers and lakes, there are various ways of breeding, but to sum up, there are only two ways: extensive farming in the wild and intensive farming. Which kind of breeding method should be chosen according to the local actual situation and local conditions.

2. For those with poor conditions, local materials can be used and extensive culture in the field can be adopted; for those with better conditions, intensive culture can be adopted, that is, high-standard culture ponds can be established to provide an ideal ecological environment for the growth and reproduction of leeches. Higher yield per unit area can be obtained through factory culture.

3. Finally, fishing is carried out. Generally, there are reservoir culture, pond culture, marsh culture, lake culture, river culture, depression culture and rice field culture and so on. These methods have the advantages of large culture area, sufficient light, rich natural bait, small investment and large income.

What are the kinds of leeches?

1. Japanese medical leeches, also known as medical leeches, are narrow and long and slightly flat, slightly cylindrical, with a length of 3 cm and a width of 4 mm (fixed). The back is green with black, and there are 5 yellow vertical lines. The ventral face is flat, grayish green, without variegated markings. The body ring number is 103. The banding is not significant, accounting for 15 rings. The male reproductive foramen is between 31 and 32 rings. The female foramen is between 36 and 37 grooves.

2. Brown leeches, also known as cattle and soft-shelled turtles, are slightly smaller than wide-body golden leeches, with a willow leaf shape, a brownish green flat back and a longitudinal line composed of five fine green and black spots. The ventral surface is yellowish, very flat, with irregular dark green spots. I is similar to the wide-body golden leech, which is distributed in most parts of the country.

How much does it cost to raise leeches?

The main contents are as follows: 1. The cost of leech breeding is mainly seedling expenses, leasing land, excavation base, building anti-escape net, etc., taking 5 mu of breeding area as an example, the capital of leased land is about 5000 yuan, the excavation base is about 4000 yuan, and the anti-escape net is about 3000 yuan. this part of the investment is about 12000 yuan.

2, in addition to this fee, farmers also need to breed bait, the purchase cost of raw materials is about 3000 yuan. In addition, the most important thing for leech breeding is to grow leeches. The cost of 250kg is about 80,000 yuan, plus management fees of 12000 yuan, disinfection fees of 200 yuan and a small amount of water and electricity, and the upfront investment is about 100000 yuan.

3. Leeches are traditional medicinal aquatic animals in China. They live in rice fields, ditches, shallow water pollution pits and ponds. They have strong survival ability, suck the blood of people and animals, move very quickly, can swim in waves, and can also make ruler-like migration. In winter, they are often dormant in the inshore wet mud.

Failure is the mother of success, and many aquaculture requires early exploration, but in the process of groping, you will encounter a kind of spitting, hatred, rejection and abuse industry from the beginning to the end, and the advertisement will say, "raising leeches does not have any technical content, and the river can grow. I supply you with seedlings and guarantee you to earn." this kind of need for everyone to beware of being deceived.