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Histology of the oviduct in laying hens
Oviduct sections are stained with hematoxylin and eosin (H&E). (a) Free range control group; (b) Low-density control group; (c) High-density control group; (d) Free range taurine treatment group; (e) Low-density taurine treatment group; (f) High-density taurine treatment group. Thin arrow: neutrophils; Thick arrow: erythrocyte. Original magnification: 200×
