Author/Authors
kaboudi, k. university of manouba - national school of veterinary medicine - department of poultry farming and pathology, Tunisia , mamlouk, a. university of manouba - national school of veterinary medicine - department of microbiology, immunology and general pathology, Tunisia , ben romdhane, r. regional district of agricultural development of tunis - department of animal production, Tunisia , khayech, m. centre de recherche vétérinaire de sousse, Tunisia , bouzouaia, m. university of manouba - national school of veterinary medicine - department of poultry farming and pathology, Tunisia
Title Of Article
Gross pathology and bacteriological study of the yolk sac infections (omphalitis) in broiler chicks, North East Tunisia
شماره ركورد
42699
Abstract
The present study was carried out for three objectives: firstly, to investigate the prevalence of the yolk sac infections in broilers in the northeast of Tunisia. The second goal was to know the main germs responsible for this problem. Finally, we aimed to study the sensitivity of isolated bacteria to the main antibiotics used in the field. A total of 170 chicks (3 to 8 days) were necropsied. Suspected yolk sacs were collected using sterile swabs and sent to the laboratory for bacteriological analysis and antibiogram. Overall prevalence of 55.3% (94 chicks) was assessed. Statistically significant difference was noted among the different age groups, with highly prevalence observed in 5 days old animals (76%). Bacteriological analysis revealed that 71.3% (67 chicks) showed single bacterial infection. E. coli was the most important isolated bacteria (74.5%), followed by Klebsiella spp. (31.9%), Salmonella spp. (10.6%), Proteus spp. (9.6%) and Staphylococcus aureus (2.1%). A high correlation was noted between the chick mortality and infection by E. coli, Klebsiella and Proteus. Tested bacteria isolates (109 isolates) to twelve antibiotic agents showed high sensitivity to streptomycin, colistin, amoxicillin and amoxicillin-clavulanic-acid. A higher resistance was noted to enrofloxacin. Multidrug resistant isolates were detected in 38 (34.9%) bacteria isolates.
From Page
390
NaturalLanguageKeyword
Yolk sac infection , Bacteriology , Multidrug resistance , Broiler , Tunisia
JournalTitle
Revue Marocaine des Sciences Agronomiques et Vétérinaires
To Page
395
JournalTitle
Revue Marocaine des Sciences Agronomiques et Vétérinaires
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