Experimental urethral obstruction was done on 30 male goats. Daily observation of tbe manifisted clinicalsymptoms in addi tion to Hb;, p , c eV.% & E.S.R. were reported.The B.U.No creatinine, calcium, Inorg. Pho sph , mag= nesium sodium & Potassium were determined in t hc serum. B~U~No & creatinine were also d e’t e.rmi.ned in abdominalsamplas~ Gollcy pains witb arcbing of the back, f’ailure ~ttmptsto urinate. and strong urethral pulsation were the pre-dominRnt clinical features in allurethral obst~uction$klebsiella from 9 cases (11.63%).4- Using agglutinating antisera polyvalent 1 andpolyvalent 11 for typable isolated E. coli strains.Also salmonella isolates were subjected to sero- logical identification by using slide agglutination technique.