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. 2021 Dec 23;8:793174. doi: 10.3389/fvets.2021.793174

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Copyright © 2021 Chen, Li, Yang, Jiang and Li.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Difference on bacteria community diversity and richness among different groups on d 30 and 110 of gestation. (A) Shannon index; (B) Simpson index; (C) Chao 1 index; (D) ACE index. LP30 and LP110: sows with low-reproductive performance on d 30 and 110 of gestation, respectively; HP30 and HP110: sows with high-reproductive performance on d 30 and 110 of gestation, respectively. Gestation stage: difference in the variations between gestation d 30 and 110. Values are mean ± standard error (n = 13).