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Mammary blood flow during experimental Escherichia coli endotoxin induced mastitis in goats and cows

Published online by Cambridge University Press:  01 June 2009

G. Dhondt
Affiliation:
Department of Physiology, Veterinary Faculty, University of Ghent, Casinoplein 24, B-9000 Ghent, Belgium
C. Burvenich
Affiliation:
Department of Physiology, Veterinary Faculty, University of Ghent, Casinoplein 24, B-9000 Ghent, Belgium
G. Peeters
Affiliation:
Department of Physiology, Veterinary Faculty, University of Ghent, Casinoplein 24, B-9000 Ghent, Belgium

Summary

The effect of intramammary infusion of Escherichia coli endotoxin upon mammary blood flow was studied in lactating goats and cows. Blood flow was recorded by means of an electromagnetic flow probe chronically implanted around one mammary artery.

Endotoxin mastitis was always accompanied by a significant increase in mammary blood flow, characterized by 2 conspicuous peaks. The flow returned to control values by the thirteenth hour after infusion. Other symptoms of acute mastitis were: fever, increased heart rate, swelling, heat and pain of the gland, increased chloride and total cell count in milk.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1977

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