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. 2016 Jan 14;95(4):736–748. doi: 10.3382/ps/pev381

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© The Author 2016. Published by Oxford University Press on behalf of Poultry Science Association.

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 reuse, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com.

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Figure 2. — Barn environmental conditions. (A) No differences were observed in the average daily temperature among barns. (B) Minimal differences were observed in humidity levels in barns with water troughs compared to pin-metered water lines. (C) Barns with water troughs showed significantly increased NH₃ levels than barns with pin-metered water lines during the last 3 wk of the study. * = P < 0.05, ** = P < 0.01, *** = P < 0.001.