How much is the leech seedling per jin?

Leech is a traditional special medicinal aquatic animal in China, which is mainly fished naturally in history. Due to the abuse of pesticides, chemical fertilizers and the environmental pollution caused by industrial and agricultural "three wastes" in recent years, wild natural resources have decreased sharply. With the in-depth development of medicinal value, its market demand potential is huge, and the development of artificial breeding is imperative. Let's take a look at how much leech seedlings cost per jin.

How much is the leech seedling per jin?

The price of leech seedlings is about 150,180 yuan per jin, but it varies greatly due to the variety, quality, producing area and market of the seedlings. The quality of leech seedlings is the most important step in the success of artificial leech breeding. Do not easily believe many seedlings launched online, and do not be easily deceived by some virtual illusions. Be careful when introducing species and strive to reduce blindness and unnecessary economic losses.

Selection and purchase method of Leech Seedling

1. Seedlings: the seedlings are large, robust, harmless, energetic, bright colors, clear stripes, and can be clustered by hand.

2, egg cocoon: egg cocoon should choose the cocoon with bright appearance, complete cocoon shape, no wound and no mark, about 800 cocoons per kilogram.

3. Young leeches: young leeches should choose those with strong vitality, bright body surface, no injury, no trace, strong physique, trauma and poor vitality.

Stocking method of Leech Seedling

1. Purchase and capture of leeches: leeches are best purchased at professional farms, and wild species can also be captured and domesticated. They can be caught directly by hand or fishing with small fishers in the early morning or evening, or trapped by tiles or bamboo buckets.

2. Selection of leeches: leeches that are strong, lively and active, quickly shrink into a ball with the touch of the hand, and have been grown for more than three years (have experienced two winters).

3. Disinfection of leeches: before entering the pool, the leeches can be washed and disinfected with 8mg / L bleach solution or 10mg / L potassium permanganate solution, the temperature is 1520 ℃, and the soaking time is about 15 minutes.

4. Stocking time: planting vermiculite can be released in spring, summer and autumn, and it is appropriate to choose sunny stocking. The general specification is 20 kilograms per strip and 300 kilograms per mu of leeches.

Culture method of Leech Seedling

1, bait feeding: the artificial breeding of leeches is mainly to put snails, and 25 kilograms of snails can be put at one time per mu, so that the leeches can reproduce naturally and feed freely. When the bait is insufficient, some earthworms and insects can be fed, and animal blood can be fed once a week.

2. Water quality regulation: although the water body of leech pond culture is large and not easy to corrupt, we should also pay attention to the water quality. The yellowish brown and light green water body is better, the water depth is 60 cm, the water transparency is 10-20 cm, and the pH value is neutral or slightly acidic.

3. Spawning and hatching: during the spawning period, leeches should be kept quiet as far as possible, so as not to disturb the adult leeches that are laying eggs to avoid empty cocoons. Avoid walking on the platform during incubation so as not to break the egg cocoon and keep the platform moist.

4. Cultivation of young leeches: the adaptability of leech seedlings to the environment is poor, the water temperature should be kept between 20 and 30 ℃, and the performance of digestive organs is poor, so attention should be paid to the nutrition and palatability of feeding, and water should be changed frequently.

5. Graded feeding: large, medium and small leeches should be separated in time in the process of leech feeding. Small leech ponds, medium hirudin ponds and species bdelloid ponds can be set up, and bdelloid ponds are set in the middle of medium and small leech ponds, and filter screens are installed on the pool wall to allow them to filter and separate themselves.

6. Overwintering management: leeches stop feeding when the temperature drops below 10 ℃, drill into the soil or leaf layer to hibernate, choose large and robust seeds, generally leave seeds 25 kilograms per mu, and concentrate on overwintering in the bdelloid pond.

7. Disease prevention and treatment: leeches are prone to bacterial infectious diseases, especially in autumn, when the head and tail skin is red and swollen, and then die one after another. Sprinkling 0.2-0.3 mg / L dibromohydantoin in the whole pool every 7-10 days can effectively prevent and cure the disease.

8. Fishing and harvesting: leeches can be harvested twice a year, and leeches that have been bred for two seasons are fished out for processing and sale in mid-and late June. Those released in early spring in mid-and late-October are generally grown up, and some of them can be considered for fishing, but most of them should be caught in the second year.