Abstract: Bovine tuberculosis is controlled in Algeria through the tuberculin test and slaughter seizures. Concerning goat tuberculosis, there is a lack of good screening methods on living animals, only post-mortem inspection of carcasses at slaughter houses is used. Continue all the paragraphs with each other. This study was conducted in four slaughterhouses in the northern region of Algeria. From a total of 7250 cattle collected during the year 2007, 260 inspected carcasses were positive, representing a prevalence of 3.58% of suspected tuberculous lesions. Among 995 inspected goat carcasses only 60 showed suspicious lesions of tuberculosis giving an infection rate of 6.03%. Bacteriological study of all suspicious lesions, revealed a total of 134 positive cultures, 51% of bovine origin and 10.01% of caprine origin. This study provides the first data confirming the presence of tuberculosis among cattle and goat populations in Algeria.