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. 2021 Jan 5;7:617259. doi: 10.3389/fvets.2020.617259

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Copyright © 2021 Qi, Qiu, Du, Wang, Wang, Huang and Liu.

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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Changes in the intestinal immune function piglets at the early growth stage. (A) PAS staining of goblet cells in the gut sections, 40× magnification. (B,C) Counts of the goblet cells in the ileum and colon. (D) Content of secretory IgA in the intestinal mucosa. (E) Protein abundance of β defensin. (F) Expression levels of the TLR2 and TLR9 genes in the ileum. n = 6, the data are presented as the mean ± S.E., different letters on the bars indicate significant differences at P < 0.05 (ANOVA).