THE EFFECT OF OVA AGING ON EMBRYOS’ SURVIVAL OF SILVER CARP
Author(s): Fatima-Zahra, 1, Mohammed Droussi2 And Mustapha Hasnaoui1 Majdoubi1, Anouar Ouizgane2, Mohammed Droussi3, Mustapha Hasnaoui4
- 1. Environmental engineering Team. Dept of Biology, University of Sultan Moulay Slimane, Faculty of Sciences and Techniques B.O. 523, Beni Mellal, Morocco
- 2. Environmental engineering Team. Dept of Biology, University of Sultan Moulay Slimane, Faculty of Sciences and Techniques B.O. 523, Beni Mellal, Morocco
- 3. International aquaculture consultant, Morocco
- 4. Environmental engineering Team. Dept of Biology, University of Sultan Moulay Slimane, Faculty of Sciences and Techniques B.O. 523, Beni Mellal, Morocco
Abstract: This study aims to determine the influence of the in vivo aging of silver carp eggs on the embryos survival ability at Deroua fish farm (Morocco). Results showed that the retention time of the ova has a significant impact on the embryos ‘survival. High survivals have been recorded for the ova stripped at the ovulation time (0 minutes post-ovulation time). While the lowest level of the survival embryos was observed for the ova stripped after 90 minutes after ovulation time. The study is carried out to optimize time, labour and costs of the production of silver carp seed without impacting the yield of production.