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Effect of over-milking on teat condition

Published online by Cambridge University Press:  17 June 2002

J. ERIC HILLERTON
Affiliation:
Institute for Animal Health, Compton Laboratory, Newbury, Berks, RG20 7NN, UK
J. W. PANKEY
Affiliation:
University of Vermont, Burlington, VT 05405, USA
P. PANKEY
Affiliation:
University of Vermont, Burlington, VT 05405, USA

Abstract

Unsatisfactory milking conditions, including high milking vacuum, ineffective pulsation, heavy clusters, unsuitable liners, poor teat preparation and over-milking, are known to create poor, but undefined, teat conditions and pose a risk to an increased probability of intramammary infection (IDF, 1994). It has been shown that poor teat condition, seen as discolouration, abnormal firmness or thickened rings of tissue distally, after cluster removal may be common in a variety of commercial milking operations (Hillerton et al. 2000). That field study was observational and teat conditions were influenced by a number of variables. A small experimental study has been undertaken to develop an experimental model, under controlled milking conditions, to allow investigation of potential causes of teat trauma. Over-milking was suggested as highly important in the field observations and so has been examined in this study.

Type
Research Article
Copyright
Proprietors of Journal of Dairy Research 2002

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