SUMMARY Background: Porcine ear necrosis syndrome (PENS) is a disease of swine char-acterized by erosive lesions at the margin of the ear. The syndrome is commonly found in weaning piglets during summer months. Morphology ...

SUMMARY Background: One of the major challenges in modern poultry industry is to pre-vent losses caused by coccidiosis. Ionophore antibiotics are widely used, despite that these compounds can have toxic side effects. ...