Witlock D R, Ruff M D
J Parasitol. 1977 Apr;63(2):193-9.
Eimeria brunetti, an intestinal coccidial parasite of poultry, caused the most severe mucosal damage when compared to E. mivati, E. necatrix, and E. maxima. The damage caused by E. brunetti was observed in the ileum and large intestine and consisted of complete villar destruction in these areas. Oocysts of E. brunetti were observed in tissue debris. E. necatrix (jejunum) enlarged isolated villi causing the lamina propria core to extrude through the villus tip. Damage to the mucosal surface is not as severe as lesions observed on the serosal surface would indicate. E. maxima (jejunum) caused epithelial sloughing and isolated patches of exposed connective tissue. Oocysts of E. maxima were observed under the surface epithelial layer. E. mivati damaged the villus tips of the duodenum and caused sloughing of the villar epithelia exposuncated and clubbed the duodenal villi. E. mivati oocysts were observed in the infected epithelia.
布氏艾美耳球虫是家禽的一种肠道球虫寄生虫，与米氏艾美耳球虫、毒害艾美耳球虫和巨型艾美耳球虫相比，它造成的黏膜损伤最为严重。在回肠和大肠中观察到布氏艾美耳球虫造成的损伤，这些部位的绒毛完全被破坏。在组织碎片中观察到布氏艾美耳球虫的卵囊。毒害艾美耳球虫（空肠）使孤立的绒毛增大，导致固有层核心从绒毛顶端挤出。黏膜表面的损伤不如浆膜表面观察到的病变严重。巨型艾美耳球虫（空肠）导致上皮脱落和孤立的结缔组织暴露斑块。在表面上皮层下方观察到巨型艾美耳球虫的卵囊。米氏艾美耳球虫损伤十二指肠的绒毛顶端，导致绒毛上皮脱落，使十二指肠绒毛暴露并呈棒状。在受感染的上皮细胞中观察到米氏艾美耳球虫的卵囊。
