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. 2018 Nov 13;9:1589. doi: 10.3389/fphys.2018.01589

FIGURE 2.

FIGURE 2

HE stained heart tissue sections of broiler after pre-ACS and ACS treatment. (A–C) Represent the C, CS I, and CS II groups at pre-ACS. (D–F) Represent the C, CS I, and CS II groups at ACS, respectively. (HE, ×200). Red arrows: disordered or ruptured cardiac muscle fiber arrangement. Green arrows: inflammatory cell infiltration. Black arrows: interstitial space.