Yucca schidigera plant extracts are one such substitute which is used as a natural alternative to antibiotics. The study was designed to know the impact of Y. schidigeraextract on growth, intestinal microbial environment, gut ammonia concentration, carcass characteristic’s, dressing percentage, and hematological parameters of broiler chickens were the primary focus of this study. Two hundred day old broiler chicks were randomly grouped into 4 groups, each containing 75 birds, with three replications for the group treated with commercially available Yuccamax^TMNH liquid (Square Pharmaceuticals) . The groups were T₀ (control, regular diet, and water), T₁ (basal diet with Yucca0.5 ml/liter drinking water), T₂ ((basal diet with Yucca 1 ml/liter drinking water), T₃ ((basal diet with Yucca 1.5 ml/liter drinking water). Birds were reared for 42 days. Results revealed that feed conversion ratio (FCR) was better in group T3 (1.59 ±0.15) among all groups, and body weight gain was found to be the highest (2329 ± 234 grams) in this group. The hematological parameters: TEC, Hb, TLC, PCV, and ESR in group T3 were 2.44 ±.217 million/mm³, 10.52±1.28 gm%, 3.82±1.30 thousand/ mm³, 33.02±4.03%, 3.00±1.22 mm 1^st hour, respectively. The values were higher non-significant (p>0.05) than the control and other treatment groups. The average beneficial Lactobacillus count in the gut was highest ( 630±99.61 cfu/gm×10² ) in the T3 group, and lower harmful Coliforms count such as total Coliforms count (34.5±3.84 cfu/gm×10²) which differed significantly (p<0.001). The average ammonia concentration (0.619 ± 0.555 ml/litre) was found to be lower in the T3 group. So this extract (especially Yucca 1.5 ml/liter drinking water may be useful to reduce the harmful bacteria and ammonia concentration and betterment of broiler growth.