Jafar Ehsani Kenari; Abolghasem Esmaeili Fereidouni; Masoud Farokhrouz Lashidani
Volume 4, Issue 1 , September 2015, , Pages 53-65
Abstract
Abstrac Effects of stress due to transportation on the common carp (Cyprinus carpio) broodstock from ponds to the hatcheries in three intervals include immediately after the catching, 2 hours for transfer and 24 hours after transportation on changes in levels of cortisol, glucose, sex steroids (testosterone ...
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Abstrac Effects of stress due to transportation on the common carp (Cyprinus carpio) broodstock from ponds to the hatcheries in three intervals include immediately after the catching, 2 hours for transfer and 24 hours after transportation on changes in levels of cortisol, glucose, sex steroids (testosterone and estradiol) and blood factors were analyzed with sampling from 30 broodstock. Results showed that cortisol levels rose quickly after the catching (625 ng per ml) and significantly decreased after 24 hours (409 ng per ml) (P0.05). Testosterone and estradiol levels were significantly different among the three intervals, in which the highest values were observed after the catching and significantly decreased with time (P0.05). Also, 24-hour maintenance of breeder’s improved the blood parameters. Based on the results, the transportation of common carp broodstock had negative effects on cortisol, steroid hormones and some blood parameters (erythrocyte and hemoglobin values), thereby it is necessary to the maintenance of broodstock (even in the short-term transfer) in hatcheries ponds.
