Article Text

Effect of damage to the teat end on the experimental induction of mastitis in dry cows with Corynebacterium pyogenes
  1. JW Seinhorst,
  2. J Sol and
  3. U Vecht
  1. Dairy Cattle Husbandry Research Institute, Lelystad, The Netherlands.


The teat ends of 12 dry cows were contaminated with Corynebacterium pyogenes. To determine whether a pre-existing (an)aerobic bacterial infection of the udder was a predisposing factor for a C pyogenes mastitis they included infected and uninfected quarters. Anaerobic bacteria could not be found and mastitis was not induced. When the teats were contaminated with C pyogenes after the teat ends had been injured 30 of the quarters became infected, and anaerobic bacteria were demonstrated in many quarters.

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