title: Calcium ion supplementation increases brook trout Salvelinus fontinalis spermatozoa activation at the end of the spawning season.
abstract: The role of environmental ion composition and osmolality in calcium ion (Ca(2+) ) signalling of spermatozoa activation over the course of the spawning period of brook trout Salvelinus fontinalis was investigated. Motility at the end of spawning was low (mean ± s.d. of 5 ± 2% motile spermatozoa with curvilinear velocity of 25 ± 8 µm s(-1) ). Addition of 10 mM Ca(2+) to the activation medium resulted in values similar to those recorded during the middle of the spawning period (mean ± s.d. of 95 ± 6% motile spermatozoa with curvilinear velocity of 130 ± 15 µm s(-1) ).
authors: Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodnany, Czech Republic.
authors: O
authors: O
authors: Bondarenko
authors: B
authors: B
authors: Dzyuba
authors: J
authors: J
authors: Cosson
authors: M
authors: M
authors: Rodina
authors: O
authors: O
authors: Linhart
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism*; D019587:Dietary Supplements; D008297:Male; D012621:Seasons; D013081:Sperm Motility / Q000502:physiology*; D013094:Spermatozoa / Q000502:physiology*; D014337:Trout / Q000502:physiology*
chemical_list: D002118:Calcium
keywords: salmonid; semen quality; sperm motility