Malodor-reducing effects of providing fulvic acid to growing pigs in drinking water and spraying fulvic acid in swine barns

The objective of the present work was to evaluate malodor-reducing effects spraying fulvic acid in swine barns and providing growing pigs drinking water. Fulvic acids for were prepared at 0.02%, compost 0.1%. Prepared 1 L sprayed test nursery pig twice a week but not control barn. 0.02% provided 4 weeks group. In experiment compost, 3 additives consisted 1) probiotics 0.08 L, 2) 0.04 + 3) tested by adding samples 80 100 plastic bucket each directly mechanical agitated composting facility. As result barns, ammonia concentration increased compared with barn which continuously. did difference excreted Probiotics, acid, resulted reduced malodor after agitation before (p < 0.001) greatest group among additives. Additionally, temperature receiving reached 40°C earlier than that means time primary fermentation advanced acid. conclusion, fed as water showed effective reduction malodor, 0.1% thus decreased malodor.