2013 journal article
Live performance of roasters raised in houses receiving different acidifier application rates
JOURNAL OF APPLIED POULTRY RESEARCH, 22(4), 922–928.
SUMMARY The reutilization of litter is currently a common practice in broiler production due to several environmental and economic factors. The application of litter amendments in broiler houses is a popular practice that can reduce ammonia emissions from recycled litter by converting them to nonvolatile ammonium. Sodium bisulfate (SBS) is one of the acidifiers frequently used in broiler houses. Broilers raised to 9 wk may require higher acidifier application rates to prevent unhealthy NH3 levels throughout the flock than broilers raised to smaller sizes. A study with 6 flocks of roasters was conducted under commercial conditions to evaluate 4 levels of SBS. In a farm with 8 houses, 4 treatments were evaluated. In the control treatment 0.49 kg/m 2 of SBS was applied to the brood chamber, whereas the low, medium, and high treatments received 0.49, 0.73, and 1.46 kg/m 2 , respectively, in the whole house. Data were obtained as the average of 2 houses with approximately 21,000 broilers per house in each of the 6 flocks evaluated. Results indicated no significant differences due to treatments on final average BW, FCR, mortality, or the majority of condemnation parameters. The significant reductions in NH3 levels observed in the whole flock across all 6 flocks receiving SBS treatments did not significantly improve broiler live performance or affect condemnations at the processing plant.