Carcass Lesion Severity and Pre-Slaughter Conditions in Heavy Pigs: A Prospective Study at a Commercial Abattoir in Northern Italy

Pre-slaughter conditions and their effects on carcass quality have been largely addressed for pigs of 90–100 kg live weight, while few studies consider the pre-slaughter carcasses obtained from heavy intended Protected Designation Origin (PDO) production. A total 1680 were transported in 72 batches a farm to commercial abattoir 16 different days, avoiding mixing unfamiliar animals. Slaughterhouse conditions, animal behaviors, human–animal interactions annotated at unloading during race toward stunning cage. Carcass lesions rear, middle, shoulder parts scored. The prevalence with severe was 6.92%, 11.87%, 6.83%, parts, respectively. Among events, waiting before improper handling practices major factors affecting lesion severity. Lairage pen space allowance also found affect rear lesions, that trailer had an increased lesions. Our results suggest time should be shortened as much possible, educational programs train operators more careful management animals are greatly required avoid practices.