Background & Objectives: This study was conducted to investigate the principal causes for condemnation of broiler breeder carcasses in Namin slaughterhouse in 2014 to prevent diseases common between human and poultary.

Methods: Condemned carcasses, their weight, and the reasons for condemnation were characterized by outward signs and gross lesions through frequent inspection of slaughterhouse and monitoring slaughter chain.

Results: 185722 poultry were slaughtered with a live wight of 724620 Kg during these hygienic inspections. Out of these, 3829 carcasses, accounting for 2.06% of total slaughter with overall weight of 4680 Kg, were condemned due to different reseaons; 14 (0.36%) due to synovitis and arthritis, 151 carcases (3.94%) because of chronic respiratory disease, 164 (4.28%) for cellulite,  168 (4.39%) for poisoning, 221 carcases (5.77%) due to ascite and peritonit, 415 (10.84%) while transporting, 816 (21.31%) from septicemia, and 1880 (49.10%) due to cachexia. Cachexia and septicemia were two most causes for condemnation accounting for 70.41% of condemned carcasses and 1.45% of total slaughters.

Conclusion: The results of this study showed that the majority of condemnations are caused by diseases which are important in terms of public health. Therefore, improving disease prevention and control programs on farms is necessary.