Effects of different levels of Withania coagulans water extract on growth performance, biochemical activity of blood enzymes, hematological and non-specific immunity parameters of Cyprinus carpio

Abstract

This study was conducted to investigate the effects of different levels of withania coagulans water extract (0, 250, 500, and 1000 mg/kg diet, in 3 repetitions) on growth, liver enzymes activity, blood parameters including WBC, RBC, Hct, Hb and non-specific immunity parameters (IgM and lysozyme) of common carp. The fish were fed for 8 weeks. The results showed that growth performance in treatments containing the extract increased significantly compared to the fish in the control (p0.05). The extract effect on red blood cells, lysozyme, IgM, hematocrit, MCV, MCHC, and hemoglobin in the 1000 mg/kg group showed significant differences with other groups (p<0.05). The percentage of neutrophils in all treatments was significantly higher than in the control group (p<0.05). According to the results, the addition of withania coagulans extract to the diet can improve blood indicators, immunity index, and growth parameters of common carp fingerlings.

Keywords

• hematology
• immune index
• withania coagulans
• cyprinus carpio