Impact of Streptococcus agalactiae Challenge on Immune Response, Antioxidant Status and Hepatorenal Indices of Nile Tilapia: The Palliative Role of Chitosan White Poplar Nanocapsule

A new insight into the synthesis of herbal plant (White poplar, Poplus alba) leave extract using chitosan nanocapsule was studied. The in vitro antibacterial activity white poplar (CWPNC) against Streptococcus agalactiae (S. agalactiae) determined. About 120 fish were categorized for 7 days four groups. first and second groups treated with 0 mg/L 3 CWPNC water, respectively, without being challenged; group a control. third fourth (CWPNC + S. CWPNC, challenged (0.5 × 107 CFU/mL). obtained results revealed that had an agalactiae. Moreover, infection caused significant elevation (p < 0.05) lipid peroxidation (malondialdehyde) hepatorenal biomarkers, as well lowest survival rate (33.33%). depletion level antioxidants (catalase superoxide dismutase) immune indicators (immunoglobulin, lysozyme activity, complement 3) consequences infection. Treatment infected alleviated these bad circumstances.