Vol. 9, Issue 10, Part I (2025)

An experiment was conducted for a period of 42 days to study the effect of supplementing herbal extract combination of natural thiosulfinate, cinnamaldehyde and naphthoquinones (TCN) on growth performance of commercial broilers. A total of 200, day-old commercial broiler chicks of uniform weight were selected and grouped into four treatments viz., T₁ (Control- basal diet), T₂ (basal diet with standard antibiotic – 250mg/kg of feed), T₃ (basal diet with combination of natural thiosulfinate, cinnamaldehyde and naphthoquinones – [TCN combination] supplemented at 250 mg/kg diet) and T₄ (basal diet with TCN supplemented at 500 mg/kg diet). Diets and supplements were analyzed for nutrient composition as per AOAC (2005) method. Birds were reared on deep litter system under standard managemental practices. The results indicated that the TCN combination supplemented at 250 mg/kg (T₃) and 500 mg/kg (T₄) diet revealed significantly (P ≤ 0.05) increased cumulative body weight compared to control group (T₁), whereas cumulative body weight was non-significant with antibiotic supplemented group (T₂). While higher body weight was observed in group supplemented with combination of herbal extracts at 500 mg/kg diet (T₄) than group supplemented with 250 mg/kg (T₃). The herbal extract combination of TCN at 250 mg/kg (T₃) and 500 mg/kg (T₄) in broilers diet showed non- significant (P > 0.05) difference in cumulative feed consumption (g) compared to T₁ and T₂ groups. Feed conversion ratio (FCR) for the TCN supplementation at 250 mg/kg (T₃) and 500 mg/kg (T₄) diet revealed significantly (P ≤ 0.05) better cumulative feed conversion ratio values when compared to control group (T₁) whereas non-significant with antibiotic supplemented group (T₂). While better FCR was observed in group supplemented with combination of herbal extracts at 500 mg/kg diet (T₄) than the group supplemented with 250 mg/kg (T₃). Based on the results of the experiment, it was concluded that the supplementing herbal extracts combination of natural thiosulfinate, cinnamaldehyde and naphthoquinones {TCN} at 500 mg/kg broiler diets was beneficial with respect to cumulative body weight and feed conversion ratio in broilers.