Investigation of chemical composition of ceolomic fluid and its effect on sperm motility traits in Prussian carp, Carassius gibelio, during spawning season.
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2010, Vol 3, Issue 3
Abstract
The effects of the composition of ceolomic fluid and sperm function are not well understood in teleostean fish species. The aim of the present study was to determine the concentration of the major inorganic ions (Na+, K+, Ca2+, Mg2+, Cl−), organic composition (glucose and total protein) and pH of ovarian fluid in Prussian carp Carassius gibelio (Bloch, 1782), and to determine if the composition of these fluids influences sperm motility trait (percentage and duration of motility). In this purpose, sperm motility traits in 3 medium (ovarian fluid, fresh water + ovarian fluid and fresh water alone) were tested. The ovarian fluid was composed of sodium 133.1 ± 3.8 mM L−1, potassium 2.4 ± 0.28 mM L−1, calcium 0.56 ± 0.28 mM L−1, magnesium 0.65 ± 0.23 mM L−1, chloride 135.4 ± 3.92 mM L−1, total protein 3.3 ± 0.46 gdL-1, glucose 3.57 ± 0.48 mM L−1 and pH 8.22 ± 2.9. The results suggested that sperm movement duration was significantly higher in ovarian fluid than fresh water and fresh water + ovarian fluid during spawning season. The percentage of motile spermatozoa did not differ significantly among ovarian fluid, fresh water + ovarian fluid and fresh water in spawning periods. As a conclusion, the results of this study recommend the use of ovarian fluid, it is useful as an activation medium to improving sperm motility parameters of Prussian carp.
Authors and Affiliations
Mohammad Taati, Bahareh Mehrad, Ali Shabani, Amin Golpour
Keywords
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