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Farm Animal Practice
Bacterial counts in bulk milk - an update
  1. Roger Blowey

    Roger Blowey is a partner in a mixed practice in Gloucester. He is an RCVS specialist in cattle health and production and, in 1995, was awarded an FRCVS.

  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.

  3. Jennifer Davis

    Jennifer Davis has worked as a laboratory technician for over 20 years. Her main interests lie in the field of microbiology. She is a member of the Royal Institute of Public Health and Hygiene.


THE use of differential culture methods to investigate the possible causes of high total bacterial count (TBC) or Bactoscan values, high somatic cell counts or a high mastitis incidence was described in an earlier article (In Practice, March 1997, pp 122-127). This has proved to be an extremely useful and popular method of investigation and represents a good opportunity for practitioners to become involved in mastitis control advisory work. The aim of this article is to provide a brief update on changes in target values and to discuss some additional parameters measured.

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