تأثير نوسانات شوري بر تعداد گلبولهاي سفيد و قرمز خون بچه ماهي انگشت قد (Acipenser persicus) تاسماهي ايراني

The Effect of Salinity Fluctuations on Red and White Blood Cells of fingerling Acipenser persicus

In the present research,in order to count red and white blood cells of fingerling Acipenser persicus and their changes in different levels of salinity,48 Acipenser persicus fingerlings were used in the Institute of International Researches on Sturgeons in 2007. For this research, 16 zouks(of 100 L in capacity)with 0,4,8 andl2ppt concentrations were used each of which having 10 Acipenser persicus fingerlings with an average weight of 5.5g.Blood samples were taken in a time period of 0 to36 hours. These samples were taken from caudal peduncles of the finger lings. The results obtained from blood cells counts showed that there were an average number of 10666/66±3920 white blood cells per a cubic millimeter in the control group. The average white blood cells count in different salinities(4,8 and 12ppt) revealed that the number of these cells in 8 and 12ppt groups had a significant statistical difference from those of the control group(P<0.05).Also the number of red blood cells of the control group was found to be 438888.89±145726.15 per a cubic millimeter. In all counts of these cells in 4,8 and 12ppt salinities no significant statistical difference was seen from those of the control group(P>0.05).The obtained results indicated that in each salinity, with the increase of the fish survival hours,the number of white blood cells showed an increasing trend and with the increase of the salinity level, there was a significant difference between the number of white blood cells in different hours.