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. 2020 Mar 31;10(4):592. doi: 10.3390/ani10040592

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Effect of the in ovo RFO prebiotic treatment on the histomorphology of duodenum in broiler chicken. (A) Photomicrograph (light microscope) of the duodenum in the RFO group on day 21. Periodic acid-Schiff (PAS) reaction, magn. ×32; (B) photomicrograph (light microscope) of the duodenum in the RFO group on day 42. PAS reaction, magn. ×32; (C) photomicrograph (light microscope) of the duodenum in the Control group on day 21. PAS reaction, magn. ×32; (D) photomicrograph (light microscope) of the duodenum in the Control group on day 42. PAS reaction, magn. ×32.