ABSTRACT
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. Infection of 3-day-old goslings with these mycoplasmas resulted in no mortality but lesions were produced with A. axanthum in 9 of 10 birds. Less severe lesions were seen in fewer birds infected with other strains. Dual infection of 3-day-old goslings, with maternal antibody to goose parvovirus, with M. gallinarum (598) or A. axanthum (612) and a virulent parvovirus resulted in some death and all birds showed lesions.
ABSTRACT
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. Acholeplasma axanthum strains were detected in goose-embryos that died on the 13th day of incubation. A significant loss (up to 60%) of embryos was observed in the flock and some layers died showing fibrinous peritonitis, salpingitis and abdominal airsacculitis. Mycoplasma gallinarum also was isolated from goose-embryo fibroblast tissue cultures. All strains except A. laidlawii caused cytoplasmic vacuolization and intracytoplasmic inclusion bodies in goose-embryo fibroblast tissue cultures. The alteration observed in chicken-embryo fibroblast cell cultures were similar; in addition, the A. laidlawii caused a marked pycnosis of the cells.
