الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
An abattoir survey was conducted from October 2020 to September 2021 to identify the primary reasons for offal and carcass condemnation of slaughtered animals in Dakahlia province, Egypt, as well as to estimate their economic loss. Out of 643 animals slaughtered, 2 (0.31%) were totally condemned due to generalized tuberculosis. Moreover, 217 (33.74%) livers, 158 (24.57%) lungs, 5 (0.78%) hearts, 14 (2.18%) heads, and 11(1.71%) tongues were condemned. Offal were condemned mainly due to pneumonia, fascioliasis, telangiectiasis, necrosis, and hydatidosis. According to this study, the financial loss at the abattoir owing to carcass and organ condemnations was 244066 Egyptian Pounds (15746 USD). According to this research, the three most frequent affections that had the biggest impact on the Egyptian budget were liver diseases, fascioliasis, and TB.
In addition, the current study determined the prevalence of hydatid cyst (HC) in one hundred and seventy cattle slaughtered in Dakahlia abattoirs, Egypt. By post mortem (PM) examination, we obtained 11.76 % prevalence rate for hydatid cysts in the liver and lung of the examined cattle. It reached 10.81% and 12.03% for native and crossbreed cattle, respectively. The cysts were mainly lodged in the examined liver (7.06%), followed by lung and both of them to be 2.35%.
In our research, we obtained 70%prevalence rate by ELISA test in comparison with 11.76% rate obtained by PM examination. This finding might be due to the presence of small sized neglected cysts during PM or due to early stages of infection with HC.