01921cab a2200277Ia 4500999001700000001000800017003000600025008004100031040000800072041001300080090002600093100002800119240008000147245010300227246012100330300001500451504002500466520084000491546002301331650002701354650004101381650004701422773008201469856008001551942001201631  c52130d52130u199439SIRSI101222s2004    ua     ss b         eng d  aEAL  aengbara  aART AVMJ V50 No101 151 aAbdelatif, M. M. 9178410aAssiut veterinary medical journal, 2004 v. 50 (101)h[electronic resource].10aEscherichia coli associated with swollen head syndrome in broiler chickensh[electronic resource].15aإيشيريشيا كولاي المصاحبة لظاهرة تورم الرأس في دجاج التسمين.‪  ap.188-195.  aIncludes references.  aA total of 150 samples were taken from five broiler chicken flocks showing swollen head syndrome between 2nd and 6th weeks of age in Dakhlia governorate, where the samples were taken frm apparently healthy as well as clinically diseased chickens. Bacteriological examination of the total number of collected samples revealed the isolation of E. coli with percentage of 78.7% where the isolation from apparently healthy and clinically diseased with percentage of 72.0% and 85.3% respectively. Serological identification of the isolates revealed that the serotype O2 (35.6%), 078 (30.5%), 05 (20.3%) and untyped strains (13.6%). By using antimicrobial agents, E. coli isolates were more sensitive to enrofloxacin, gentamycin, erythromycin, cefotaxin and streptomycin. Key words: Escherichia coli, swollen head syndrome, broiler chickens.  aSummary in Arabic. 0aEscherichia coli.9120 0aBroilers (Chickens)xDiseases.91785 0aBroilers (Chickens)xVirus diseases.917860 tAssiut Veterinary Medical Journal. g2004.v.50(101)x1012-59737nnaswu18135640uhttp://nile.enal.sci.eg/EALE/2004/AVMJ/5004/101/188.pdfzFull Text Article.  cAR2lcc