AEROBIC BACTERIAL PATHOGENS OF PNEUMONIC FEEDLOT BUFFALO-CALVES, IN ASSIUT GOVERNORATE, EGYPT المسببات البکتيرية الهوائية الممرضة للالتهاب الرئوي في الجاموس التسميـن بمحافظة أسيوط - مصر

doi:10.21608/auber.2009.149540

AEROBIC BACTERIAL PATHOGENS OF PNEUMONIC FEEDLOT BUFFALO-CALVES, IN ASSIUT GOVERNORATE, EGYPT المسببات البکتيرية الهوائية الممرضة للالتهاب الرئوي في الجاموس التسميـن بمحافظة أسيوط - مصر

Document Type : Original Article

10.21608/auber.2009.149540

Abstract

ABSTRACT:

The current study conducted on 68 lung samples from 1-3 years old buffalo-calves slaughtered at Assiut abattoirs. The samples showed variable gross lesions of pneumonia in particular the grey and red hepatization. The bacteriological examinations indicated that 66 (97.06%) samples of the examined lungs were positive for mixed bacterial isolation, while the other two samples (2.94%) found to be bacteriologically negative. Staphylococcus aureus (22.43%); Escherichia coli (18.22%) and Pasteurella multocida (15.89%) were the predominant isolated bacterial pathogens. However, Proteus vulgaris (7.01%); Streptococcus. pyogenes (5.61%); Actinomyces pyogenes (3.74%); Klebsiella pneumoniae (3.27%) and Corynebacterium bovis (2.8%) were also isolated. Pasteurella multocida were isolated from pulmonary tissues and their virulence and pathogenicity test revealed that all injected mice were died at various time-intervals, from less than 24 hours up to 48 hours, with 100% mortality rates.

أجريت هذه الدراسة على 68عينة من رئة جاموس التسمين تتراوح أعمارها من 1-3 سنوات مذبوحة بمجازر أسـيوط تظهر عليها الآفات الباثولوجية للالتهابات الرئوية. بالفحص البکتيريولوجى وجد أن 66 عينة رئة بنسبة 97.06% إيجابية للعزل البکتيرى المختلط، ولم يتمکن من العزل البکتيرى لعينتين رئة بنسبة 2.94%. کانت أعلى نسـب للعزل البکتيرى لکل من الميکروب العنقودى الذهبي (22.43%)، والأشــيرشـيا القولونية (18.22%)، والباستيرلا مالتوسيدا (15.89%). کما عزل بعض العترات الأخرى بنســب أقل منها ميکروب بروتيس فولجلريس (7.01%)، والمتکور السبحى الصديدى (5.61%)، واکتينوماسيس بيوجينز (3.74%)، والکلبسـيلا نيمونى(3.27%)، والکورينى باکتيريم بوفس(2.8%). أظهرت نتائج اختبار الضـراوة لجـميع عترات الباسـتيرلا مالتوسـيدا نفوق کل الفئران المحقونة خلال أقل من 24سـاعة إلى 48سـاعة.

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