Effects of growth conditions on biofilm formation by Actinobacillus pleuropneumoniae Josée Labrie, Geneviève Pelletier-Jacques, Vincent Deslandes, Mahendrasingh Ramjeet, Eliane Auger, John H.E. Nash and Mario Jacques Vet. Res., 41 1 (2010) 03 Published online: 10 September 2009 DOI: 10.1051/vetres/2009051