Affiliation:
1. Universidad Nacional de Río Cuarto (UNRC), Argentina
2. Universidad Nacional de Río Cuarto (UNRC), Argentina; Consejo Nacional de Investigaciones Científicas y técnicas (CONICET), República Argentina
Abstract
ABSTRACT: To assess the success of a segregated medicated early weaning protocol for elimination of Actinobacillus pleuropneumoniae, ten consecutive batches of 100 pigs per batch weaned at 7-9 days of age were monitored at 21-22 weeks of age looking for presence of productive cough, presence of antibodies against the agent and pleuropneumonia-compatible lung lesions at slaughter. Also, whole tonsils were processed for A. pleuropneumoniae identification by both bacteriological isolation and nested-PCR using a direct method. Positive serological test (1.4%) and PCR (3.5%) results, suggested that A. pleuropneumoniae could not be eradicated in all batches, even using segregated medicated early weaning protocol.
Subject
General Veterinary,Agronomy and Crop Science,Animal Science and Zoology
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