Effects of Combined Dietary Additives with Commercial Feed on Broiler Production

This study aimed to investigate the effects of combined dietary additives with commercial feed on broiler chicken production. The effects of individual dietary additives on broiler production have been extensively studied, but little is known about the combined effects of dietary additives with commercial feed. A total of 150 (day-old) Cobb-500 broiler chicks were reared under standard environmental conditions for a period of 42 days at the Sher-e-Bangla Agricultural University poultry farm. The broiler chicks were divided into five groups like T0 (control); T1 (prebiotic and probiotic); T2 (enzymes); T3 (probiotic, prebiotic, and mineral mixture); and T4 (antibiotic). The rates of feed intake, live weight (LW), and feed conversion ratio (FCR) were recorded weekly. The dressing percentage and weight of vital organs, such as the liver, heart, and spleen, were recorded. The data were recorded and analyzed. We found that feed intake (3890.44±9.38), live weight (LW) (3133.48±21.99), and dressing percentage (76.77±1.89) were higher in chickens in the experimental group compared with those of the control group. By contrast, FCR was relatively lower (1.21±0.01) in the chicken in the experimental group compared to the control group. We also found that combined feed additives increase the average weight of the liver, heart, and spleen, whereas there were no effects on the bursa of fabricius of the chicken. Overall, combined dietary supplements significantly improved broiler growth, feed efficiency, and carcass yield compared to individual supplements or control.