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Observations on the mammary glands of culled ewes at the time of slaughter

Gross abnormalities of the mammary glands of 1650 culled ewes were recorded. Clinically obvious lesions were detected in 211 (12.8 per cent) of udders; 77 per cent of lesions were abscesses. A generalised calcification of the whole of a gland was observed in 23 udders. It is concluded that abnormalities of the udder are an important reason for the culling ewes. The assessment of the cost-effectiveness of measures to reduce the incidence of mastitis would be worthwhile.