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. 2014 Dec 4;10:286. doi: 10.1186/s12917-014-0286-4

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© Engle et al.; licensee BioMed Central Ltd. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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The influence of dam parity (X) on the level of passive IgG (Y) in experimental piglets. Concentration of passive IgG tended to increase in piglets generated by older dams (> 4 parities, P > 0.27).