Assessment of a segregated medicated early weaning protocol for elimination of Actinobacillus pleuropneumoniae

Assessment of a segregated medicated early weaning protocol for elimination of Actinobacillus pleuropneumoniae

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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 Touch Displays 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 tinsel (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.