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On the presence of supernumerary mammary glands in cows and on their functional activity

Published online by Cambridge University Press:  27 March 2009

K. J. J. Mackenzie
Affiliation:
School of Agriculture, Cambridge.
F. H. A. Marshall
Affiliation:
School of Agriculture, Cambridge.

Extract

(1) Rather over 50 per cent, of the cows in this country probably possess accessory or supernumerary teats, the number of which varies from one to three.

(2) In many cases at any rate, these teats are associated with additional glands.

(3) These additional glands are frequently functional and secrete milk.

(4) Ordinarily this milk is absorbed into the circulation, the lactose being secreted in the urine.

(5) The presence of active accessory or supernumerary glands is an undesirable characteristic since it involves the formation of milk which is not utilised.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1925

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References

page 30 note 1 Materials for the Study of Variation. London, 1894.Google Scholar

page 30 note 2 Anat. Hefte, Abt. I, 8, p. 527, 1897.Google Scholar

page 30 note 3 Ibid., Abt. I, 25, p. 683, 1904.

page 34 note 1 September 20th, 1913.