Periódicos Brasileiros em Medicina Veterinária e Zootecnia

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Quantity, location, and description of bruises in beef cattle slaughtered under sanitary inspection

da Silva Frasão, BeatrizRegina Bueno de Mattos Nascimento, MaraCarla de Oliveira Costa, HeloizaRibeiro Morais, Hugode Fátima Carrijo, KêniaGiaretta Biase, Nádia

Background: The distance traveled by trucks carrying cattle from farm to slaughterhouse can affect the resultant quality of beef due to the occurrence of injuries en route. The types of injuries that can occur vary according to the depth, size, location, and quantity of the injuries. Staining can be used to determine the age of the lesions and estimate the time when the injury occurred, thereby providing information that can be used to make changes in the trucking of cattle in order to decrease or eliminate the injuries. The effects associated with three transportation distances when hauling 20 cows per livestock truck were investigated. The collected data focused on the age, depth, size, quantity, and location of bruises found on beef carcasses slaughtered in the mesoregion of Triângulo Mineiro and Alto Paranaíba, Brazil, in January of 2012.Materials, Methods & Results: A total of 320 cows were randomly divided into three groups according to the distance traveled via livestock truck from the farm to the slaughterhouse. Each truck carried 20 cows. In groups A (n = 140), B (n = 40), and C (n = 140), the cattle traveled 50 to 60 km, 90 to 110 km, and 140 to 166 km, respectively. Any extant contusions were visually observed on the production line after skinning, and relevant data were recorded using the respective animals identification tag as the identifier and analyzed. Of

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