The effect of vitamin c on the immuny system of Barbus grypus

This study was conducted in order to characterize the effect of different levels of dietary vitamin C on the immune system of Barbuas grypus. For this purpose 300 Barbuas grypus were divided into 15 groups (5 treatments mouseover=«function onmouseover() {msoCommentShow (''_anchor_1''،''_com_1'')}» onmouseout=«function onmouseout() {msoCommentHide (''_com_1'')}» href= «#_msocom_1» > [b1] each with 3 replicate). Five levels of vitamin C (0، 200، 400،800،1600 mg kg-1 diet) and their combination were used to prepare five experimental diets. The fish were fed 3% of their wet body weight /day for a 60 days period. Blood samples were obtained from six fish of each tank at the end of experiment and following parameters were measured: white blood cell count (WBC (and leucocytes differential count. According to the results، a significant increased was observed in the white blood cell count between treatments compared to the control group(p≤0. 05). The results of differential count of leucocytes revealed significant differences in nuetrophils between treatments compared to control group (p≤0. 05)، and the low number was recorded in control group.