Abstract
Approximately 500 Justifiable complaints of offensive odours from pig farms are received annually. Slurry additives for odour control, if successful, would be of considerable public good. Earlier work at Institute of Grassland & Environmental Research (I.G.E.R.) Hurley on the efficacy of slurry additives for controlling odour emission from pig slurry, showed one product (Homogen; containing brown algae, calcium and magnesium alginates and substances to selectively support the multiplication of facultative anaerobes; Mycatec Laboratories) to give promising results on small scale stores (80 litre) of pig slurry. This experiment was designed to test the efficacy of the slurry additive Homogen on a commercial scale on pig finishing pens with slurry stores.
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