Effect of different photoperiods on hematological indices Persian sturgeon (Acipenser persicus)

Subject Areas : New Technologies in Aquaculture Development

Received: 2020-01-13 Accepted : 2020-01-13 Published : 2011-05-22

Keywords: Photoperiod, haematology, Keywords: Persian sturgeon (Acipenser Persicus),

Abstract :

Abstract In the present research, in order to count red cells and study haematocrit and haemoglobin values in juveniles of Acipenser persicus and their changes in different photoperiods, 450 Persian sturgeon juveniles were used at five photoperiods: 24L:0D, 16L:8D, 12L:12D, 8L:16D and 0L:24D for 60 days. At the end of experiment, 3 fish randomly were selected from each replication of treatment and blood samples were taken from caudal fin of juveniles. The results showed that number of red blood cells (An average 516666.7 ± 40242.3 per a cubic millimeter) were significantly in 0L:24D photoperiod highly than other groups. Results also indicated that different photoperiods had no significantly effect on values of haemoglobin and haematocrit. The highest haematocrit and haemoglobin values was observed in the 16L:8D and 12L:12D  photoperiods respectively.