Comparative Studies of Biogas Production Potentials of Litters of Three Poultry Birds Species

Abstract

Litter samples of broiler, cockerel and layer poultry birds were analyzed for their proximate composition, ultimate analysis and heating values using standard methods. The moisture content of the broiler litter (8.78%), cockerel litter (11.72%) and layer litter (11.35%) were found to be statistically different. Ash content of 7.45%, 7.52% and 7.68% for broiler, cockerel and layer litters respectively were significantly difference. Volatile matter for broiler litter (63.77%) was found to be significantly different from the volatile matters obtained for cockerel (62.50%) and layer (62.57%) litters both of which were not statistically different. The Fixed carbon content for broiler litter (20.03%) was significantly higher than cockerel litter (18.27%) and layer litter (18.40%) both of which show no significant difference. Heating value result in MJ/kg for broiler litter is 17.61, cockerel litter 17.59 and layer litter 17.55 as well as ultimate analysis results (C 41.78%) for broiler litter which was found to be significantly different from 40.19% cockerel litter and 39.95% for layer litter. H 5.00%, 4.83% and 4.83% for broiler, cockerel and layer litters respectively with broiler litter having the highest and significantly different from cockerel and layer litters. O broiler litter is 36.29% significantly different from 35.30% for cockerel litter and 35.23% for layer litter. The N content for broiler litter is 3.78%, cockerel litter 4.89% and layer litter is 3.89% all of which are significantly different. Broiler litter has 13.16% S, Cockerel litter has 15.11% and layer litter has 15.78%. The C/N Ratio is 11.06, 8.17 and 13.09 for broiler, cockerel and layer litters respectively indicating that broiler litter has the highest with cockerel litter having the lowest but all the values obtained were statistically significantly different at 95% confidence level with α = 0.05. The results obtained, infer that broiler litter has the highest biogas production potentials