Figure 3

Colonies of M. hyopneumoniae J strain on solid media. Colonies were photographed at 5 days post-inoculation (D5) of A undiluted culture, B 10⁻¹ and C 10⁻² dilution of the culture in ATCC medium. In B, the limit of the culture drop can be differentiated with the colonies observed within such limit. Once inoculated, solid plates were incubated for 7 days at 37 °C and 5% CO₂ and photographed using a microscope at ×40.