Figure 1
From: Bacterial determinants of importance in the virulence of Gallibacterium anatis in poultry
Biovars of Gallibacterium anatis show difference in hemolytic properties. Colonies of G. anatis biovar (bv.) haemolytica strain 12656–12 and G. anatis bv. anatis strain F149. Hemolysis is seen as a clearing zone around the colonies of G. anatis b haemolytica. Colonies are 1–2 mm. greyish, smooth, semitransparent, slightly raised and circular with an entire margin when incubated for 24 h at 37 °C on nutrient-rich plates containing blood. Strains of G. anatis biovar haemolytica and genomospecies 1 and 2 shows β-hemolytic zones (1–2 mm) around the colonies on agar plates with blood from calf, horse, swine, sheep, rabbit or chicken [3,10,12,13,14].