Article Text

Download PDFPDF
Causative organisms and somatic cell counts in subclinical intramammary infections in milking goats in the uk
  1. S. M. Hall, BVetMed, MRCVS1 and
  2. A. N. Rycroft, BSc, PhD, FIBiol1
  1. 1 Department of Pathology and Infectious Diseases, Royal Veterinary College, Hawkshead Lane, North Mymms, Hertfordshire AL9 7TA
  1. Correspondence to Dr Rycroft


The bacterial causes of subclinical mastitis were determined in samples of milk taken from one half of the udders of 159 goats in three different herds. The mean prevalence of subclinical infection was 33 per cent, with prevalences of 26 per cent, 39 per cent and 42 per cent in the three herds. Staphylococcus aureus was isolated from seven (13 per cent) of the 53 infected halves, coagulase-negative staphylococci accounted for 47 per cent, Corynebacterium species for 31 per cent and α-haemolytic streptococci for 6 per cent of the infected samples. The mean somatic cell count of the uninfected milk samples was 428,000 cells/ml, and 93 per cent of uninfected samples had counts less than 1,000,000 cells/ml; the mean cell count of the infected samples was 2,785,000 cells/ml.

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.