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Amplification of the sample DNAs by species-specific polymerase chain reaction (PCR) for Eimeria tenella identified on a 2% agarose gel electrophoresis. 1~10: Animal numbers in the Group A, B, C. (A) DNAs extracted from the fecal samples of control chickens. (B) DNAs extracted from the fecal samples of E. tenella-infected chickens. (C) The DNAs extracted from the fecal samples of E. tenella-infected chickens treated with 0.5% Galla rhois.
