Co-infection of broilers with Ornithobacterium rhinotracheale and H9N2 avian influenza virus.

ABSTRACT:

Background

Since 2008, a progressive pneumonia has become prevalent in broilers and laying hens. This disease occurrs the first day after hatching and lasts more than 30 days, resulting in approximately 70% morbidity and 30% mortality in broilers. The objective of this study was to isolate and identify the pathogens that are responsible for the progressive pneumonia and establish an animal model for drug screening.

Results

193 serum samples were collected from 8 intensive farms from 5 provinces in China and analysed in the current research. Our clinical survey showed that 65.2% to 100% of breeding broilers, breeding layers, broilers and laying hens were seropositive for ORT antibodies. From 8 intensive farms, six ORT isolates were identified by PCR and biochemical assays, an

SUBMITTER: Pan Q 

PROVIDER: S-EPMC3424113 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature