قسم الأحياء الدقيقة والطفيليات

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حول قسم الأحياء الدقيقة والطفيليات

حقائق حول قسم الأحياء الدقيقة والطفيليات

نفتخر بما نقدمه للمجتمع والعالم

74

المنشورات العلمية

13

هيئة التدريس

من يعمل بـقسم الأحياء الدقيقة والطفيليات

يوجد بـقسم الأحياء الدقيقة والطفيليات أكثر من 13 عضو هيئة تدريس

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د. اسامة رجب محمد الواعر

اسامة الواعر هو احد اعضاء هيئة التدريس بقسم الاحياء الدقيقة والطفليات بكلية الطب البيطري. يعمل السيد اسامة الواعر بجامعة طرابلس كـأستاذ مشارك منذ 2012-06-05 وله العديد من المنشورات العلمية في مجال تخصصه وهو خبير دولي سابق في مجال الثروة الحيوانية منذ 2011 حتي 2017 كمنسق اقليمي لبرنامج الحوكمة البيطرية الاوروبي الافريقي وهو رئيس الجمعية الليبية العلمية للاطباء البيطرين ورئيس قسم العلاقات الثقافية والتعاون الدولي بكلية الطب البيطري ومنسق الدراسات العليا بقسم الاحياء الدقيقة والطفيليات بالكلية شغل عدة مناصب منها مدير مكتب اعضاء هيئة التدريس بالكلية ورئيس قسم الاستشارات والبحوث بالكلية ورئيس لجنة الامتحانات ورئيس وحدة الابحاث للحشرات الناقلة للامراض وعدة مناصب اخرى

منشورات مختارة

بعض المنشورات التي تم نشرها في قسم الأحياء الدقيقة والطفيليات

A Study of Bacterial Contamination on Libyan Paper Banknotes in Circulation

Paper currency is one of the potential vectors to transmit diseases, since banknotes continuously pass through different hands, as a medium of exchange, which increases the possibility of transferring pathogenic microorganisms and thus cross contamination. This study was carried out on one hundred and ninety-eight paper currency notes that were collected randomly in the city of Tripoli, Libya, from different communities namely, petrol and gas stations, supermarkets, mini markets, cafeterias and fast food restaurants, etc. The samples consist of four pieces, each of currency (Dirham) denominations (250, 500, 1.000 and 5.000 notes). Conventional and current microbiological techniques were used in order to isolate and identify the species of microorganisms that resulted in the following percentages: Enterobacter agglomerans 19%, Pseudomonas spp. 16%, S. aureus, Enterobacter cloacae 11%, Klebsiella pneumonia 11% and E. coli 10%. These results indicate that Libyan banknotes are commonly contaminated with pathogenic bacteria, which have the possibility of spreading human diseases. Higher denomination currency showed lower contamination. Consequently, great care should be taken during the handling of money for the safety of human health. arabic 10 English 65
Abdulgader Dhawi Alfitouri Dhawi(1-2021)
Publisher's website

PATHOLOGY OF GOUT IN GROWING LAYERS ATTRIBUTED TO HIGH CALCIUM AND PROTEIN DIET

An outbreak of gout was investigated in a growing layers farm of 45000 birds located in Tripoli, Libya. Mortality was commenced at 39 days-old reaching to a total of 489 birds within 10 days. Post mortem was conducted and kidney tissue samples were fixed in 10% neutral formalin prior to processing. Feed samples were sent to the Animal Nutrition Department for analysis which revealed 23.47% crude protein and 3.5% calcium. Gross lesions comprised of deposition of chalky white material covering the pericardium and enlarged kidneys with necrotic foci, hemorrhage and nephrosis. Most of birds showed swollen ureter of one or both sides. Histopathologically, severe damage of tubules characterized by moderate to severe tubular dilation and necrosis and central bluish gouty deposition surrounded by radiations of needle like urate crystals followed by granulomatous reaction of lymphocytes, macrophages and fibroblasts. The collecting renal tubules, urinephric ducts and ureters were also filled by gouty deposits with epithelial hyperplastic changes and chronic inflammatory cellular reaction in their walls. The interstitial tissue showed edema, congestion, hemorrhage and lymphomononuclear cell infiltration. This gout outbreak in growing layers is attributed to high concentration of crude protein and calcium in diet.
Ibrahim Eldaghayes(1-2010)
Publisher's website

Exploiting serological data to understand the epidemiology of bluetongue virus serotypes circulating in Libya

The epidemiological patterns of Bluetongue (BT) in North Africa and Mediterranean Basin (MB) dramatically changed by emergence of subsequent episodes of novel bluetongue virus (BTV) serotypes with highly pathogenic indexes and socio-economic impacts. The objective of the study was to investigate the sero-prevalence and serotype distribution of BTV in Libya. During 2015-2016, a total of 826 serum samples were collected from domestic ruminants in Libya. All sera were assayed by competitive enzyme-linked immunosorbent assays (c-ELISA). C-Elisa-positive samples (43.3%; 173/400) were further analyzed by virus neutralization assay to identify BTV serotypes and determine the antibody titre of positive samples. An overall BTV sero-prevalence was 48.4% (95% CI: 45.0%-51.8%). Neutralizing antibodies were detected against the following BTV serotypes namely: BTV-1, BTV-2, BTV-3, BTV-4, BTV-9 and BTV-26. While BTV-1, BTV-2, BTV-4 and BTV-9 circulation was unsurprising as they have been responsible of the last year outbreaks in Northern African Countries, the detection of BTV-3 and BTV-26 was definitely new and concerning for the animal health of the countries facing the Mediterranean Basin. It is crucial that European and Northern African authorities collaborate in organizing common surveillance programmes to early detect novel strains or emerging serotypes in order to set up proper preventive measures, and, in case, develop specific vaccines and plan coordinated vaccination campaigns.
Ibrahim Eldaghayes(11-2018)
Publisher's website