“…Previously, Banskota et al [ 17 ] reported that the oil/water spray technique showed a major impact on pig farm dust control. Similarly, Godbout et al [ 18 ] reported that canola oil sprinkling 2 times per day reduced 27% hydrogen sulfide and 30% ammonia concentrations in the piggery barn. Moreover, Rahman and Borhan [ 19 ] noted that the addition of microorganisms directly to the manure of anaerobic dairy lagoons reduces the solids and nutrient content.…”