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. 2020 Jun 17;99(9):4203–4216. doi: 10.1016/j.psj.2020.04.031

Figure 3.

Figure 3

Effects of increasing oocysts doses of mixed E. maxima, E. acervulina, and E. tenella on intestinal morphology (jejunum) of broiler chicken (6 DPI). The study evaluated the effects of graded challenge of Eimeria spp. on growth performance and gastrointestinal health of broiler chickens. Birds were challenged with E. spp. on d13. (A) Con, control; (B) Low, the low challenge dose, 6,250 oocysts of E. maxima, 6,250 oocysts of E. tenella, and 31,250 oocysts of E. acervulina; (C) Med-low, the medium-low challenge dose, 12,500 oocysts of E. maxima, 12,500 oocysts of E. tenella, and 62,500 oocysts of E. acervulina; (D) Med-high, the medium-high challenge dose, 25,000 oocysts of E. maxima, 25,000 oocysts of E. tenella, and 125,000 oocysts of E. acervulina; (E) High, the high challenge dose, 50,000 oocysts of E. maxima, 50,000 oocysts of E. tenella, and 250,000 oocysts of E. acervulina. Abbreviation: DPI, day postinfection.