Efficacy of <i>Rumex nervosus</i> leaves or <i>Cinnamomum verum</i> bark as natural growth promoters on the growth performance, immune responsiveness, and serum biochemical profile of broiler chickens

This study was conducted to evaluate the potential growth and health promotion of Rumex nervosus leaves (RNL) Cinnamomum verum bark (CVB) supplementation as phytogenic promoters on broilers. For 34 days, 540 day-old broiler chicks were randomly assigned nine groups. Birds fed basal diet supplemented with 1, 3, or 5 g/kg RNL, 2, 4, 6 CVB. In addition, birds complemented antibiotic (AGP), without feed additive controls. All bird vaccinated for IBV, IBDV, NDV except negative control (NC). The selected indicators measured analysed. Broilers given 1 g RNL numerically heavier at days gained more a degree comparable AGP group (p = .053). addition CVB 2 resulted in best-feed conversion up 21 d .04). Throughout study, dietary treatments had no impact intake. Except ALT, none immune-related parameters serum biochemical profile differed statistically between when compared group. When comparing non-vaccinated un-treated day 34, vaccination increased significantly antibody titres IBDV. conclusion, CVB, especially low doses, attempted maximise performance compromising chickens under typical conditions. Further research into use natural herbs challenging conditions is required performance, maintain animal productivity, achieve ultimate goal reducing poultry industry. HighlightsCinnamomum dose improved ratio during starter period. However, both result unsatisfactory improvements overall period ideal hygienic conditions.If broilers are exposed bacterial challenges, additives even antibiotics may manifest their activity promoting and, result, performance.Low levels hepatic enzymes age showed that birds’ good.Cinnamon powder improves kidney function by lowering creatinine increasing < .05).Rumex have hypoglycaemia 31 glucose reduced.