Prevalence and Antibiogram of E. coli in Broiler Chickens Reared in Libya | ||||
| Journal of Veterinary Medical Research | ||||
| Article 1, Volume 22, Issue 1, March 2013, Page 1-2 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jvmr.2013.77666 | ||||
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| Author | ||||
| A A | ||||
| Faculty of Veterinary Medicine, Omar Almukhtar University, Libya | ||||
| Abstract | ||||
| Eighty five E.coli isolates were isolated from 3-6 weeks old broiler chickens suspected to be suffering from colibacillosis, complicated CRD, diarrhea, arthritis, slow growth rate and high mortality up to 15% from the examined 300 broiler chickens from different flocks. 250 (83.33%) were infected with E.Coli and all flocks were (100%) positive for colibacillosis where 85 E.coli isolates were obtained from which, only 42 isolate were sero-grouped into O55 (5.88%), O26 (8.23%), O111 (3.52%), O128 (14.11%), O125 (2.35%), O86 (8.23%), O126 (7.05%) while 43 isolates cannot be sero-grouped according to the available antisera. The invitro sensitivity of the isolated strains to various chemotherapeutic agents revealed that all strains were sensitive to Kanamycin and Amoxacillin (100%). All strains were resistant to Trimethoprim. In vitro pathogenicity testing of the isolated E.coli using Congo red medium revealed that all isolated strains were pathogenic (Congo red positive) | ||||
| Keywords | ||||
| prevalence; Antibiogram; broiler; coli | ||||
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