Determination carcass condemnation causes of broiler chickens (Gallus Domesticus) at industrial slaughter house of Shazand, Markazi province of Iran

An experiment was carried out to evaluate the main causes of broiler carcass condemnations in shazand industrial slaughter during the first six months of 2009. Poultry industry occupies a major position in the livestock sector of agricultural production because birds reproduce much quicker to produce meats and eggs for human consumption. Several of the post-mortem inspection conditions that are currently recorded have been identified as potential indicators of on-farm management problems. The data was taken within six months period and carcass condemnation causes were separately recorded based on monthly. In this study six different cause of carcass condemnation were revealed that included septicemia, excessive atrophy, toxicosis, trauma, respiratory infection and peritonitis ascites. Base d on this result excessive atrophy, trauma and septicemia with 32, 23 and 13 percentage of total condemnation frequency respectively was main cause of carcass condemnation and toxicosis with 9 percentage of total carcass condemnation was least importance of ones.Result of statistical comparison revealed that indifferent months of experiment about probability of different causeof condemnation was least significantly (p<0.05) in May exceptexcessive atrophy and trauma. There were no significant differences(p>0.05) between frequency of each cause of carcass condemnationin different month of experiment except May. In our study there wassignificant difference between seasons (spring and summer), theperitonitis ascites, toxicosis, respiratory infections and septicemiahave higher frequency rate at summer but trauma and excessiveatrophy has higher frequency rate at spring. This difference mayoccur because of environment conditions that were high intemperature at summer months. On the basis of the results of thisstudy, it was concluded that that excessive atrophy, trauma andsepticemia were main cause of condemned carcass of bird in shazandindustrial slaughter house within one year of experimentation andthis is obligatory to recognize cause of septicemia, excessive atrophyand, trauma in this geographically region for alleviating the efficiencyof broiler production. With promoting and guide programs for localproducers about these reasons may reduce carcass condemnationrate in industrial slaughter houses.

کلیدواژه ها:

Broiler chickens ، Slaughter inspection ، Carcass condemnation ، Season