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Journal of Dairy Science Vol. 25 No. 2 155-160
© 1942 by American Dairy Science Association ®
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The Anatomy and Physiology of the Teat Sphincter*

Dwight Espe and C. Y. Cannon

Iowa Agricultural Experiment Station, Ames, Iowa

ABSTRACT

No evidence was obtained to indicate that a negative pressure develops at the external orifice of the teat when the pressure of milking is released.

With machine milked cows there is a greater danger of injury to the teat sphincter than with hand milked cows. A teat whose sphincter becomes eroded at the external orifice seems to offer a greater opportunity for infection of that quarter than one which shows no erosion.

FOOTNOTES

* Journal Paper No. J.937 of the Agricultural Experiment Station. Ames Iowa, Project No. 47.






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Copyright © 1942 by the American Dairy Science Association ®.