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. 2020 Dec 19;100(3):100939. doi: 10.1016/j.psj.2020.12.036

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© 2020 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

PMC Copyright notice

Changes in (A) IL-2, (B) IL-6, (C) IL-1β, (D) TNF-α, and (E) interferon gamma mRNA expression levels in spleens of laying hens in the CC and FC groups before transportation (BT), immediately after transportation (0 h), and at 48 h after transportation (48 h). Lowercase letters “a, b, c” indicate significant differences (P < 0.05), and the same or nonstandard means no significant differences (P > 0.05). Abbreviations: CC, conventional cage; FC, furnished cage; TNF-α, tumor necrosis factor alpha.