The effects of time of reproductive migration on the biochemical composition and mobility trait of sperm in Persian sturgeon (Acipenser persicus) brood stocks
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 3
Abstract
In this study the effects of reproductive migration of Persian sturgeon on some mobility traits of sperm (duration of sperm movement and the percentage of motile sperms) and on biochemical compounds (e.g. calcium, magnesium, glucose, total protein, sodium and potassium) of semen was investigated. For this purpose, time of reproductive migration in these brood stocks were divided to three periods (i.e. treatment 1 = March, treatment 2 = April and treatment 3 = May) and in each period we sampled from those male fishes which had approximately the same sizes. The results showed that the duration of sperm movement (110.00±28.28, 327.85±85.38 and 55.00±7.07), the percentage of motile sperms (70.50±2.12, 88.60±8.38 and 66.00±0.00) and amounts of glucose (6.25±2.78, 1.18±0.44 and 7.78±1.25), total protein (0.19±0.05, 0.41±0.10 and 0.07±0.00), potassium (3.57±1.31, 2.57±0.77 and 4.46±0.14) and calcium (2.19±0.31, 2.59±0.81 and 11.99±6.35) of these fishes were significantly different at different times of the reproductive migration (P<0.05). But no significant difference was observed between these treatments for the percentage of spermatocrit, cholesterol and sodium and magnesium ions (P>0.05). Generally speaking, male brood stocks of Persian sturgeons in terms of mentioned parameters are more appropriate in April compare to March and May months.
Authors and Affiliations
Milad Kabir, Mohamad Imanpoor, Masoud Asghari
Keywords
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