Fig. 4
Oocysts of Eimeria labbeana-like parasite among the infected, infected-MyE, and infected-drug pigeon groups before sporulation (A-D) and after sporulation (E-H) with K2Cr2O7 showed changes in the oocyst size after treatment. (OL, outer layer; IL, inner layer; RF, refractile body; SB, stieda body; PG, polar granule; SPC, sporocyst; RBS, residuum of sporocyst; SPZ, sporozoite; S, sporont). Scale bar = 10 μm