While values obtained here for N2O are in line with standard emission factors, those for NH3 are much higher. In this study the NH3 emissions were higher than those reported by others authors (e.g., Fangueiro et al., 2008; Clemens et al., 2006). These findings can be explained by the TAN/TKN ratios of digestates, which are typically higher than those of raw slurries, and to the gas sampling method, that involved the mixing of the sample. Blanes-Vidal et al. (2012) have demonstrated that mixing operations cause an incremental increase in NH3 emissions during the first hour after disturbance followed by a linear trend over the next three hours.