RT Journal T1 PHYLOGENETIC GROUPING OF THE PATHOGENIC E. COLI ISOLATED FROM COMMERCIAL BROILER CHICKEN IN PAKISTAN A1 F. Akhtar A1 M. Rabbani A1 K. Muhammad A1 M. Younus A1 A. A. Sheikh A1 R. Akhtar A1 J. Muhammad A1 A. Rasool JF Journal of Animal and Plant Sciences JO JAPS SN 1018-7081 VO 26 IS 5 SP 1242 OP 1246 YR 2016 FD 2016/10/01 DO DOI NA AB

E. coli isolates can be classified into four different phylogenetic groups on the basis of chuA, yjaA and TspE4.C2 biomarkers via multiplex PCR. Current study investigated the presence of various phylogenetic groups in clinical samples of collibacillosis from commercial broiler chicken in Pakistan. A total of 84 E. coli isolates out of 200 swab sample (n = 25 cloacal; n = 27 fibrinous layer of peri-hepatitis of clinically infected broiler chicken; and n = 32 cloacal swabs from clinically healthy chicken) were recovered. Out of 25 pathogenic E. coli isolates from cloacal swabs, 12%, 4%, 72% and 0% isolates belonged to group A, B1, D and B2, respectively. Out of 27 pathogenic E. coli isolates from swab of fibrinous layer,18.5%, 29.6%, 44.4% and 0% isolates belonged to group A, B2, D and B1, respectively. While out of 32 non pathogenic E. coli isolates from healthy birds, 21.8%, 9.3%, 46.8% and 18.7% isolates belonged to group A, B2, D, and B1, respectively. There were 06 uncategorized E. coli isolates, which amplified both yjaA and TspE4.C2 biomarkers. This study helped to categorize the E. coli isolates into intestinal and extra intestinal origin on the basis of phylogenetic grouping.

K1 Collibacillosis, Fibrinous peri-hepatitis, Multiplex PCR PB Pakistan Agricultural Scientists Forum LK https://thejaps.org.pk/AbstractView.aspx?mid=2016-JAPS-162