羊伪结核病病原的分离鉴定

从不同羊场的山羊颈部淋巴结脓肿处分离到5株革兰氏阳性、无荚膜、无芽胞的多型性球杆菌,其对青霉素等药物有很强的抗药性,对强力霉素高敏.根据其形态学、培养特性、生化特性及致病性试验、动物回归试验和血清学试验结果,判定所分离的5株菌为伪结核棒状杆菌.     

Radiographic and computed tomographic appearance of caseous lymphadenitis in a goat

A 2‐year‐old Boer doe was presented with respiratory distress and severe inspiratory dyspnea. Cervical and thoracic radiographs revealed a marked retropharyngeal soft tissue mass effect, several mineralized pharyngeal and retropharyngeal structures, and a pulmonary mass. Computed tomography (CT) revealed a severely enlarged right medial retropharyngeal lymph node, which caused laryngeal compression, leading to upper airway obstruction. Multiple cervical and thoracic lymph nodes, and the pulmonary mass had an irregular layered/laminated pattern of mineralization. Imaging findings were consistent with caseous lymphadenitis, and further confirmed with culture, necropsy, and histopathology. This is the first report of CT appearance of caseous lymphadenitis in a goat.     

山羊感染伪结核棒状杆菌病的诊断

贵州某羊场山羊群患有以淋巴结肿大、化脓为主要特征的疾病,疑似山羊伪结核棒状杆菌病.从10只患病羊的淋巴结脓肿中分离得到10株病原菌,经对该病原菌进行病原形态、培养特性、生化特性及致病性等鉴定,结果该病菌为致病性伪结核棒状杆菌,该病确诊为山羊伪结核棒状杆菌病.