Paulina Przyborowska-Zhalniarovich, Dominiek Maes, Iwona Otrocka-Domagała, Katarzyna Paździor-Czapula, Agnieszka Wiszniewska-Łaszczych, Marta Sołtysiuk

Association between Enzootic Pneumonia-like Lung Lesions and Carcass Quality and Meat pH Value in Slaughter Pigs

  • General Veterinary
  • Animal Science and Zoology
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Although the prevalence of respiratory diseases in slaughter pigs ranges from 19% to 74% and continues to be an important concern for swine herds worldwide, only a few studies have investigated the relationship between respiratory disease and pork quality. The general aim of this study was to investigate associations between the prevalence and severity of enzootic pneumonia-like lesions in Polish slaughter pigs on different carcass and meat-quality characteristics at the animal and herd levels. The average prevalence of bronchopneumonic lungs with different degrees of lesions was 94.57%. The majority of lesions indicated the acute stage of enzootic pneumonia. Our results indicate a statistically significant interaction between the mean weight of carcasses depending on the extent of the lesions (p = 0.04) at the animal level. The correlation between meatiness and severity of lung lesions was r = −0.25 (p = 0.00). The correlation between the extent of lung lesions and pH45 value was r = −0.17 (p = 0.005) on the animal level and r = −0.63 (p = 0.017) at the herd level. This implies that lung lesions in slaughter pigs negatively influence not only animal health and welfare, but also carcass quality.

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