Ten clinically healthy dogs their ages varied from 3-5 years constituted the material of this investigation. All animals were put under clinica! observation pre and post-operation. Under the effect of general anasthes ia the common bile duct was ligated using catgut. Haematological, clinical, biochemical changes, post-mortem and histopathological examinat ion were carried out following the obstruction at interval time up to three weeks.
Icterus was evident due to hyper haemobilirubinaemia and clinically manifested by yellowish descoloration of visible mucous membranes especially conjunctival mucosa.
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