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Farm Animal Practice
Teat disinfection in dairy herds
  1. Roger Blowey

    Roger Blowey has been a partner in a large, mixed practice in Gloucester for the past 25 years. He is an RCVS specialist in cattle health and production and, in 1995, was awarded an FRCVS for meritorious contributions to learning.

  2. Peter Edmondson

    Peter Edmondson is a partner in a nine-person, predominantly dairy practice in Shepton Mallet, Somerset. He holds the RCVS certificate in cattle health and production and was awarded an FRCVS in 1994. His special interests are mastitis and preventive medicine and, together with Roger Blowey, he runs mastitis control and quality milk production seminars for dairy practitioners.


TEAT disinfection is one of the most important preventive measures in mastitis control. It is carried out either immediately prior to milking (pre-dipping) or, most commonly, after milking (post dipping). Pre-dipping controls environmental mastitis; the disinfectant is allowed a minimum of 30 seconds contact time and is then wiped from the teats before applying the cluster. Post dipping controls contagious mastitis; the disinfectant is applied as soon as the cluster is removed and the teats are left unwiped. This article examines the reasons for teat disinfection, the chemicals used and methods of application, and highlights associated management faults.

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