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. 2021 Jun 4;14(6):1437–1449. doi: 10.14202/vetworld.2021.1437-1449

Figure-11.

Figure-11

Hematoxylin and eosin staining for BF of chicken supplemented with the Rhazya stricta extract before the challenge with two doses of sheep erythrocytes. A, B, C: BF collected on days 14, 28, and 42 with 4×, respectively. a, b, c: BF collected on days 14, 28, and 42 with 20×, respectively. SI: Space interfollicular, C: Cortex, M: Medulla, LF: Lymphoid Follicle, ET: Epithelial tissues, UC: Undifferentiated Cells, BC: Blood capillaries; BF: Bursa of fabricius.