Evaluating a natural outbreak of porcine proliferative enteropathy and treatment with tylosin in the grow-finish phase

Abstract

Objective: To determine approximate time and severity of a porcine proliferative enteropathy (PPE) outbreak in a herd with a history of PPE; to compare average daily gain (ADG), average daily feed intake (ADFI), feed efficiency (F:G), and clinical impression of disease in clinically affected nonmedicated controls versus pigs medicated with 110 ppm (100 g per ton) of tylosin for 21 days followed by 44 ppm (40 g per ton) tylosin for an additional 21 days; and to follow pigs to market to determine effects of the outbreak on clinical PPE lesions detected at slaughter.