الفهرس 
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Abstract
112 sheep urinary bladder contaning urine were collected from Assiut .Abbattoire during the period from October 1980 till the end of February 1981.
Urine was examined physically, pathologically as well as bacteriologically, in order to determine the relationship between the urine changes and isolated bacterial. Urine protien, glucose, nitrite, acetone bodies, uribilinogen, bilirubin, blood, heemoglobin and pH values were recorded.
Urine for bacteriological examination was collected by bladder puncture.
Moreover, correlation between bacteria isolated from urine and both sex and age was determined.
Of the samples examined (25) about (22.3%) fromall collected samples changes while in the rest no abnormal gross apperance have detected about (77.3%).
The most frequent organisms isolated from cases of cystitis were unclassified Coryne bacterial 22.3%; Escheria coli 19%, Pathogenic stapylococci (15%). Non pathogenic Staphylococci (4%), strept sp. (5%) Protus (5%) and Klebsiella (5%), Citrobacter 2% and psudomonas (1%). An average (19%) of cultures displayed mixed infection. Regarding the relationship between the pH of urine and the isolated bacterial, it was noticed that pH ranging from 7.0 to 8.0 was most suitable for all isolates. Coliforms, staphylococci, enterococci were the least organisms influenced with PH variation of urine.
Moreover, C.renale and proteus were more isolated from strongly alkaline urine. In bloody urine, staphylococci were the most prevalent organisms while only (31.5%) of isolated C.renale strains were recovered from cases of haematuris. The odour of the examined urine samples was either offensive to ammoniacal.
The examined urine sheep samples recorded the presence of proteen in various degree (30 to 500 mg/dl).