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Sporulated oocysts of the Eimeria Operational Taxonomic Unit (OTU) genotypes x, y, and z collected from domestic chickens (Gallus gallus domesticus). Photomicrographs of sporulated oocysts are shown for (A) OTUx, (B) OTUy and (C) OTUz. Composite line drawings are shown for (D) OTUx, (E) OTUy and (F) OTUz. RB, residual body; SB, stieda body; PG, polar granule. Scale bars = 10 µm.
