Radiographic, Microbiologic, and Pathologic Study of Pneumonia in Imported Sheep and Goats
محل انتشار: دوفصلنامه جراحی دامپزشکی، دوره: 19، شماره: 1
سال انتشار: 1403
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 73
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شناسه ملی سند علمی:
JR_IJVS-19-1_006
تاریخ نمایه سازی: 8 خرداد 1403
چکیده مقاله:
This study aimed to determine the main pathogens involved in the pulmonary disorders, clinical signs, radiography, and pathological findings of imported sheep and goats. In the summer of ۲۰۱۹ during repeated visits to the livestock farms, digital radiographs were taken from the thoracic region of the animals that were clinically suspected of pneumonia complications. Afterward, samples were taken following necropsy from ۴۰ cases that died owing to pneumonia, and eventually, lung samples were examined for microbiology and histopathology to isolate causative pathogens and diagnose the type of complication. Radiographically, increased thoracic opacity was evident in all studied animals. The visible pulmonary patterns were mainly the interstitial pattern and to a lesser extent the alveolar and bronchial patterns. The isolated bacteria in sheep were Pasteurella multocida (۲۸.۵۷%), Mannheimia haemolytica (۲۱.۴۳%), Mycoplasma genus (۱۷.۸۶%), Escherichia coli (۱۴.۲۹%), Corynebacterium ovis (۷.۱۴%), Arcanobacterium (۷.۱۴%), and Bacillus licheniformis (۳.۵۷%), and in goats were Mycoplasma genus (۴۲.۳۱%), Pasteurella multocida (۱۹.۲۳%), Mannheimia haemolytica (۱۱.۵۴%), Corynebacterium ovis (۱۱.۵۴%), Escherichia coli (۷.۷۰%), Arcanobacterium (۳.۸۴%), and Bacillus licheniformis (۳.۸۴%), respectively. Based on the histopathologic findings, pulmonary lesions of sheep and goats consisted of ۳۷.۵% fibrinosuppurative bronchopneumonia, ۲۷.۵% fibrinous bronchopneumonia, ۲۵.۰% purulent bronchopneumonia, and ۱۰.۰% interstitial pneumonia. Based on the evaluated parameters, in thoracic radiographs, the interstitial pattern was the dominant pulmonary pattern. Also, Pasteurella multocida, and Mycoplasma genus were the most common pathogens isolated in the sheep and goats respectively and fibrinosuppurative bronchopneumonia was the most prevalent pulmonary complication.
کلیدواژه ها:
نویسندگان
Milad Samadipoor
Resident of Veterinary Radiology, Islamic Azad University, Science and Research Branch, Tehran, Iran.
Pooran Mohammadi
Resident of Veterinary Radiology, Islamic Azad University, Science and Research Branch, Tehran, Iran.
Ghasem Farjanikish
Department of Pathobiology, Faculty of Veterinary Medicine, Lorestan University, Khorram Abad, Iran.
Majid Masoudifard
Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
Hossein Esmaeili
Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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