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Evaluation of Rice Hull Ash as Broiler Litter

Poultry Science Department, Mississippi State University, Mississippi State, Mississippi 39762

Correspondence: T. N. Chamblee, E-mail: tchamblee{at}poultry.msstate.edu

Three trials were conducted to examine the efficacy of rice hull ash as a litter material for broiler chickens. Each 42-d trial used the following litter materials: pine shavings, rice hull ash, and rice hull ash blended with pine shavings. In trial 1, pine shavings (PS), rice hull ash (RHA), and a 50/50 blend of PS and RHA were used as the 3 litter treatments. In trials 2 and 3, PS, RHA, PS/RHA (50/50), PS/RHA (70/30), and PS/RHA (70/30 layered) were used as the 5 litter treatments. Body weight, feed conversion, and NH₃ production, N, phosphate, and potash in litter were determined at the end of each trial. Body weight and feed conversion were not consistently altered by any of the litter treatments among the 3 trials. Likewise, NH₃, N, phosphate, and potash in litter were not consistently altered by any of the litter treatments among the 3 trials. RHA alone or in combination with PS can be used as litter material for broiler chickens with no adverse effects on broiler performance, litter NH₃ production, or litter fertilizer value.

Key Words: broiler • litter • rice hull ash • litter ammonia • litter nitrogen • litter phosphate • litter potash