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Vet Pathol. 1987 Jul;24(4):302-7.

Pathology of experimental ureaplasma mastitis in ewes.


One mammary gland of each of nine primum partum suckling ewes was inoculated with ureaplasma 8 weeks post-partum. Infected glands were swollen, hot, and painful from 16 hours post-infection. Subsequently there was agalactia and reduction in gland size. Histopathologic and ultrastructural examination indicated that the acute phase of the induced mastitis was characterized by necrosis of secretory epithelium with a neutrophil, eosinophil, and macrophage response. Subsequently there was lymphoid infiltration, acinar involution, and fibrosis. This report confirms the pathogenicity of ureaplasma for the ovine mammary gland, and is the first description of the pathologic features of ureaplasmal mastitis in sheep.

[Indexed for MEDLINE]

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