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On Ovariotomy in Sows; with Observations on the Mammary Glands and the Internal Genital Organs

Published online by Cambridge University Press:  27 March 2009

K. J. J. Mackenzie ,
F. H. A. Marshall  and
J. Hammond
K. J. J. Mackenzie
Affiliation:
(School of Agriculture, Cambridge.)
F. H. A. Marshall
Affiliation:
(School of Agriculture, Cambridge.)
J. Hammond
Affiliation:
(School of Agriculture, Cambridge.)
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Extract

In our previous papers we have shown that the black pigment found in the mammary tissue of sows of various coloured breeds is related to the colour rather than to the sexual condition of the pig. We have also pointed out that this conclusion is contrary to the statements of bacon curers who rely on the presence of this pigment for an indication as to whether or not a sow is ‘on heat.’ Their method of testing the condition of the sow has been described by us in a former paper. It follows from the assumption made by the bacon curers that pigment should not be present in the ‘belly pieces’ of spayed sows (or to be strictly accurate, of sows spayed in early life, before the mammary ducts and glands have undergone development).

Type
Research Article
Information
The Journal of Agricultural Science , Volume 6 , Issue 2 , May 1914 , pp. 182 - 186
Copyright
Copyright © Cambridge University Press 1914

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References

Page 182 note 1 This Journal, vol. IV. 06 1912, and vol. V. October 1913.Google Scholar