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Teat orifice stretchability associated with teat diameter gradient and milk yield in lactating cows

Published online by Cambridge University Press:  02 September 2010

A. K. Rathore  and
R. F. Sheldrake
A. K. Rathore
Affiliation:
Dairy Research Centre, Richmond, New South Wales 2753, Australia
R. F. Sheldrake
Affiliation:
Veterinary Research Station, Glenfield, New South Wales, Australia
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Summary

Teat canal stretchability was measured on 119 lactating cows from two dairy farms, using a probe. Diameter of one hind teat was measured by calipers at the proximal end of the teat and 20 mm above its distal end. Teat canal stretchability, teat diameter at the proximal end and teat diameter gradient were highly correlated with milk yield. Cows with higher teat diameter gradient (i.e., funnel-shaped teats) had higher teat canal stretchability values compared with the cows with lower teat gradient values (i.e., cylindrical teats). Stretchability of the hind teat canal was significantly greater than the stretchability of the fore teat canal.

Type
Research Article
Information
Animal Production , Volume 24 , Issue 2 , April 1977 , pp. 215 - 220
Copyright
Copyright © British Society of Animal Science 1977

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References

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