Effects of dietary Sodium propionate on hematological and serum biochemical indices in Common carp (Cyprinus carpio).

The aim of this study was to investigate the effects of Sodium propionate on some hematological parameters (white and red blood cell count, hemoglobin, hematocrit, MCHC, MCV and MCH) and biochemical indices (glucose, cholesterol, albumin and total protein) in common carp. Fish with an average weight of 25.99 ± 4.43 gr divided in 3 treated groups, fed 0.5, 1 and 2% of Sodium propionate supplementation and the control group (in 3 replicates). According to the result adminestration of diet with Sodium propionate showed no significant increase in hemoglobin, hematocrite, MCHC and MCV in some treatments, however MCH, red cells and white cells showed significant increase in fish fed supplementation of 1%, 2% and 0.5 and 1% (p<0.05). Result also showed a non significant decrease in Cholesterol levels (p>0.05). A significant difference was seen in glucose level among treatments. The lowest level of glucose was seen in 2% propionate. Fish were fed with supplementation of Sodium propionate didn’t show significant difference compare with control group (P>0.5). It appears that supplementation of food with Sodium propionate could improve immune parameters in common carp.