The study included isolation and diagnosis of causative microorganisms of urinary tract infection of sheep slaughter in slaughter house in Mosul.
(66) samples of urine collected from urinary bladder directly by sterile syringe from clinically healthy sheep (one animal suffered from dysuria) from both sex of different ages, followed by antibiotic sensitivity test for isolated bacteria. Urine were examined physiologically and chemically in a percentage of (5-10%) for the presence of pus, red blood cells, epithelial cells In addition of protein, sugar were determined and considered as a primary indicator for urinary tract infection.
Results revealed (34) isolate (51.5%) isolated from (66) samples of urine. The results also showed that Gram positive bacteria were dominants (except Staphylococcus epidermidis and Corynebacterium renale) than Gram negative bacteria. Corynebacterium ovis with Staphylococcus aureus showed the highest percentage (20.58%), followed by Streptococcus spp. (14.7%) then Gram negative bacteria
E. coli give (11.7%). Pseudomonas spp. (8.8%) and Proteus (2.24%) also isolated Candida albicans in (5.8%).
The results of antibiotic sensitivity of isolated microorganism indicated that Ciprofoxacin and Gentamycin was the most effective while Pencilline and Nitrofuration had no effect.