Efficiency of Weizmannia Faecalis in Improving Broiler Performance and Gut Health in Challenged Birds

The objective of the present study was to evaluate the probiotic impact of Weizmannia faecalis (formerly Bacillus coagulans) DSM 32016 on the performance parameters and intestinal health of broiler chickens reared under high stocking density and mild heat stress conditions. The trial involved 320 day-old ROSS broiler chicks, randomly assigned to two experimental groups (8 pens per group). The control group received a standard commercial diet while the experimental group was supplemented with W. faecalis. At 42 days of age, 24 birds from each group were slaughtered for carcass composition analysis and evaluation of the weight of individual cuts. Probiotic supplementation significantly increased final body weight and improved feed conversion ratio, resulting in a significant increase in drumstick weight and breast meat yield, while the average feeding cost per kg broiler decreased by 5%. Collectively, the probiotic diet supplementation enhanced growth performance, alleviating the adverse effects of high stocking density and thermal stress.