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(a) TUNEL staining. Green fluorescence indicates TUNEL-positive cells. DAPI was used for nuclear staining (magnification 200x). (b) TUNEL-positive cells (100%). n = 6 chickens/group. ∗p < 0.05, ∗∗p < 0.01 vs. control group. ^p < 0.05, ^^p < 0.01 vs. OTA group.
