Effect of age on reproductive performance of Kutum, Rutilus frisii (Nordmann, 1840) in Shirood River, southern coast of the Caspian Sea
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Abstract:
In this study, we investigated the age-dependent changes in reproductive efficiency of Kutum, Rutilus frisii caught from Shirood River, the Southern Caspian Sea (Mazandaran Province, Iran). Age-dependent reproductive performance of brooders was assayed on two age and sex groups. Results revealed thatthere were no significant differences in sperm characteristics between age groups. All female characteristics revealed change except relative fecundity between two age groups. The higher fertilization rate (%87) and also survival rate (%91) were found when the 4 year - old males were crossed with 4 year - old females (P
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Journal title
volume 15 issue 3
pages 205- 212
publication date 2017-09-01
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