Influence of constricts on the body of a medical leech on their reproductive ability
  • Article Type: Research Article
  • Eurasian Journal of Biosciences, 2020 - Volume 14 Issue 1, pp. 7-10
  • Published Online: 25 Jan 2020
  • Open Access Full Text (PDF)


In the experiment, 120 medical leeches of three species were used: H. verbana, H. medicinalis, H. orientalis. In which constrictions (defect) on their body and reproductive belts were revealed. Those leeches, which had constricts, right up to the rupture of its tissues in these places, were planted two or three in liter jars for reproduction. Their readiness for reproduction was checked by fecundity belts. Piece conditions were created by examples of their living in the wild. We found that this defect (constrictions) contribute to their poor laying of cocoons, up to their absence. Also, most leeches died without laying cocoons in the second week of jigging. The resulting cocoons were defective. our results prove that the appearance of constrictions in a medical leech significantly affects their reproductive. These constrictions appear in about 5% of leeches fed by human and animal blood.


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