Using serological monitoring, internet-based feedback and on-farm auditing to improve Toxoplasma gondii control at Dutch pig farms

D. Oorburg, Dorien Eppink, Janneke Heijltjes, Martijn Bouwknegt, Bert Urlings, Joke van der Giessen, Inge Krijger, Monique Mul, M. Swanenburg, H.J. Wisselink