Abstract— Short and long-term changes in teat condition mainly caused by machine milking may affect the udder health of lactating dairy cattle. The objective was to investigate the prevalence of teat end hyperkeratosis scores in lactating dairy cattle in Germany and to determine associations between animal variables and teat end hyperkeratosis. The study was conducted in 15 German high-yielding dairy herds. On dairy farms teat size, teat shape, teat end shape and changes in teat condition (edema, teat skin colour, teat end hyperkeratosis) were recorded. In total, 4,022 animals of the breed German Holstein were included into the present study. For both front and rear teats associations between teat end hyperkeratosis and lactation number, teat length, teat diameter and teat end shape were found. Further research is needed to reduce the prevalence of teat end hyperkeratosis in high-yielding dairy herds and to improve the teat condition.
Keywords— Udder health, teat end hyperkeratosis, teat end shape.
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