Fig. 2From: Development of a test method for transformation of veterinary pharmaceuticals and biocides in anaerobic liquid manureFormation of 14CO2 plus 14CH4 (% aR) by transformation of 14C-salicylic acid. 50 g cattle and pig manure were incubated in the flow-through system (constant stream of nitrogen at 50–200 mL/min) and the semi-static system (intermittent stream of nitrogen). Results for 6 replicates per sampling (dots) and mean values (open squares) are givenBack to article page