A kind of method of breeding phenanthrene

Abstract

The invention discloses a method for breeding poecilobdella manillensis. The method includes steps of (1) selecting lee sunny places with drainage and irrigation convenience and constructing breedingponds in the lee sunny places; (2), releasing the poecilobdella manillensis and recording the daily temperature of each breeding pond; (3), determining the optimal feeding time according to a functional relational expression; (4), thoroughly cleaning the breeding ponds on the day before the poecilobdella manillensis is fed, then injecting constant-temperature water at the temperature of 26-28 DEGC into the breeding ponds, keeping the temperature unchanged for 4-6 h, then draining the constant-temperature water and cleaning the breeding ponds; (5), pouring fresh blood into casings, and releasing the casings into the breeding ponds; (6), injecting constant-temperature water at the temperature of 26-28 DEG C into the breeding ponds on the fourth day after the poecilobdella manillensis is fed, keeping the temperature unchanged for 4-6 h, and then slowly cooling the water until the water temperature reaches the normal temperature. The method has the advantages that the water temperature does not need to keep constant all the time, lesion of the poecilobdella manillensis due to the low water temperature further can be reduced, and the content of hirudin in the bodies of the poecilobdella manillensis can be increased.

Description

Technical field[0001]The invention relates to a breeding method, in particular to a method for breeding Philippine leeches, and belongs to the technical field of breeding.Background technique[0002]The salivary glands and saliva secreted by Hirudinidae are rich in antithrombin active substances, namely hirudin. Hirudin has a significant effect on the treatment of cardiovascular and cerebrovascular diseases, especially stroke and hemiplegia caused by thrombosis. With the in-depth development of its medicinal value, Fei Niu leeches have attracted people's attention.[0003]For a long time, the application of chemical fertilizers, pesticides, and industrial waste discharge in agricultural production have severely polluted natural water bodies. The living space of Philippine bull leeches is getting smaller and smaller, and the wild resources are increasingly scarce. The output of wild Philip bull leeches cannot meet social requirements. Artificial breeding is necessary.[0004]The Philippine...

AI Technical Summary

Problems solved by technology

[0008] 2. Some farmers adopt the method of constant temperature to breed the genus phenanthae, which requires high breeding equipment and serious energy consumption in the breeding process, resulting in increased breeding costs and a decline in the economic benefits of breeding.

[0009] 3. Some farmers adopt regular and quantitative methods to feed A. phenanthae. Although the body weight of A. phenanthae can increase rapidly, and the weight of a single individual is obvious, the content of hirudin in the body of the s. The content of hirudin in the body of leech determines the price of the product, which leads to the low recycling price of the leeches raised by the farmers, reduces the enthusiasm of the farmers to breed, and generally reduces the economics of the breed benefit

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