An official journal of the Society for Biology of Reproduction and the Institute of Animal Reproduction and Food Research of Polish Academy of Sciences in Olsztyn

June 2014 (No. 2)

In vitro sperm maturation in sterlet, Acipenser ruthenus

Borys Dzyuba a,*, Jacky Cosson a, Sergii Boryshpolets a, Olga Bondarenko a, Viktoriya Dzyuba a,b, Galina Prokopchuk a, Ievgeniia Gazo a, Marek Rodina a, Otomar Linhart a

a Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 38925 Vodnany, Czech Republic

b Institute of Biology, V.N. Karazin Kharkiv National University, Kharkiv, Ukraine

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The aim of the study was to examine sperm maturation in sturgeon and to establish the localization of the maturation. We demonstrated that sperm maturation occurs in sturgeon outside the testes via dilution of sperm by urine. The process involves the participation of high molecular weight (>10 kDa) substances and calcium ions.

Reproductive Biology 2014 14 2: 160-163.

* Corresponding author: E-mail address: