Guimarães Marta Brito, Torres Luciana Neves, Mesquita Ramon Gomes, Ampuero Fernanda, Cunha Marcos Paulo Vieira, Ferreira Thais Sebastiana Porfida, Ferreira Antonio José Piantino, Catão-Dias José Luiz, Moreno Andrea Micke, Knöbl Terezinha
Avian Dis. 2014 Dec;58(4):650-3. doi: 10.1637/10855-043014-Case.1.
This study describes an outbreak of necrotic enteritis caused by Clostridium perfringens type A in captive macaws (Ara ararauna). Two psittacine birds presented a history of prostration and died 18 hr after manifestation of clinical signs. The necropsy findings and histopathologic lesions were indicative of necrotic enteritis. Microbiologic assays resulted in the growth of large gram-positive bacilli that were identified as C. perfringens. PCR was used to identify clostridium toxinotypes and confirmed the identification of isolated strains as C pefringens type A, positive to gene codifying beta 2 toxin. The infection source and predisposing factors could not be ascertained.
本研究描述了由A型产气荚膜梭菌引起的圈养金刚鹦鹉（蓝黄金刚鹦鹉）坏死性肠炎暴发。两只鹦鹉出现虚脱病史，并在临床症状出现后18小时死亡。尸检结果和组织病理学病变表明为坏死性肠炎。微生物学检测培养出大量革兰氏阳性杆菌，鉴定为产气荚膜梭菌。采用聚合酶链反应（PCR）鉴定梭菌毒素型，证实分离菌株为A型产气荚膜梭菌，编码β2毒素的基因呈阳性。感染源和诱发因素尚无法确定。
