Prophylactic and immune modulatory influences of Nigella sativa Linn. in broilers exposed to biological challenge

Prophylaxis and disease prevention is an essential strategy among biorisk management in poultry farms that stimulate and maintain the birds' immunity. The aim of this study was to investigate the prophylactic, and immune-stimulant influence of Linn. in broilers under biological stress. A total of 250 1-day-old (ross) chicks were divided into 5 groups; four of which were supplemented with 1.4%, 2.8%, 4.2%, and 5.6% Linn., respectively. The four supplemented groups were challenged with O :H 1.5×10 at a 14 day old. A total of 1050 samples (150 serum, 150 swab, and 750 organ samples) were collected and examined. A highly significant increase (p