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Mammary gland order and piglet growth during lactation

Published online by Cambridge University Press:  20 November 2017

S.W. Kim ,
W.L. Hurley  and
R.A. Easter
S.W. Kim
Affiliation:
The University of Illinois, Department of Animal Sciences, Urbana, Illinois 61801, USA
W.L. Hurley
Affiliation:
The University of Illinois, Department of Animal Sciences, Urbana, Illinois 61801, USA
R.A. Easter
Affiliation:
The University of Illinois, Department of Animal Sciences, Urbana, Illinois 61801, USA
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Extract

It has been suggested that the anterior glands may be larger, produce more milk or provide a more comfortable position for piglets (Donald, 1937; Gill and Thomson, 1956) while others have suggested that there is no difference in milk yield among teats (Hartman et al., 1962; Pond et al., 1962). The real advantage of the anterior mammary glands of sows for the suckling pig remains unclear. We have demonstrated that substantial mammary growth occurs during lactation in the sows (Kim et al., 1999). This study was designed to relate teat preference and piglet growth with gland size and composition. Our hypothesis is that there are differences between anterior and posterior glands in size and composition and that these differences may be related to piglet growth during lactation.

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 190
Copyright
Copyright © The British Society of Animal Science 1999

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References

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Kim, S.W., Hurley, W.L., Han, I.K., and Easter, R.A.. 1999. Changes in tissue composition associated with mammary gland growth during lactation in the sow. J. Anim. Sci. (Accepted).Google Scholar
Pond, W.G., Van Vleck, L.D., and Hartman, D.A.. 1962. Parameters for milk yield and for percents of ash, dry matter, fat and protein in sows. J. Anim. Sci. 21:293–297.Google Scholar