Mycoplasma infection of geese. II. Studies on pathogenicity of mycoplasmas in goslings and goose and chicken embryos.

Of various mycoplasma strains of goose original, axanthum strains (609 and 612) caused the death both of goose and chicken embryos, A. laid-lawii strain (606) killed only goose embryos, whereas M. gallinarum (598) failed to kill either.

Mycoplasma infection of geese. 1. Incidence of mycoplasmas and acholeplasmas in geese.

This paper presents data about the isolation of members of the order Mycoplasmatales from material of goose origin. Acholeplasma laidlawii strains were isolated from 2 to 8 day old goslings with heavy fibrinous airsacculitis, peritonitis and perihepatitis. Losses reached 30% of the flock by the end of the 8th week of age.