Using Anhydrous Aluminum Chloride with Calcium Carbonate to Reduce Ammonia Volatilization and Increase Nitrogen Content from Poultry Litter

摘要

This study evaluated the effects of a blend of anhydrous aluminum chloride and calcium carbonate on poultry litter properties, such as pH, NH₃ emissions, and nitrogen (N) content, over a 4-week period. The chemical treatment agents used in this study were added to the poultry litter, with rice hulls at a rate of 40 g aluminum chloride＋60 g calcium carbonate/kg litter and mixed into the upper 1 cm of litter; untreated poultry litter acted as the control. When a combination of anhydrous AlCl₃ and CaCO₃ was used as an additive, NH₃ emissions were significantly reduced ( P 4-N contents significantly increased ( P 3 and CaCO₃, unlike that observed in the control litter. However, no significant differences ( P >0.05) were observed between the control and treated litters for total N at 4 weeks or NH₄-N at 2 and 4 weeks. In conclusion, we have shown that adding a combination of chemicals to litter may be a beneficial strategy to decrease NH₃ and N loss from poultry litter.