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Effect of Escherichia coli endotoxin-mediated inflammation of one mammary quarter of the bovine udder on diapedesis into other quarters

Published online by Cambridge University Press:  01 June 2009

W. Donald Schultze  and
A. John Bramley
W. Donald Schultze
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9 AT, UK
A. John Bramley
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9 AT, UK
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Summary

Implantation of 1 μg Escherichia coli endotoxin into one papillary duct of a bovine udder frequently resulted in a mild inflammatory process in the treated quarter which was measured by use of the Wisconsin mastitis test (WMT) on quarter fore milk samples. Inflammation of a fore quarter was usually (18/24) accompanied by a transient elevation in WMT score from the homolateral hind quarter, but rarely (1/25) from the contralateral quarter. Inflammation in a hind quarter rarely (2/26) affected the homolateral fore quarter and never (0/25) the contralateral quarter. The pattern of responses suggests that absorption and initial removal of endotoxin from the mammary gland occurs via the lymphatic rather than the blood system.

Type
Original Articles
Information
Journal of Dairy Research , Volume 49 , Issue 3 , August 1982 , pp. 381 - 385
Copyright
Copyright © Proprietors of Journal of Dairy Research 1982

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References

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