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Title

SEROPREVALENCE OF ORNITHOBACTERIUM RHINOTRACHEALE INFECTION IN COMMERCIAL TURKEY FARMS OF IRAN

Pages

 Start Page 83 | End Page 89

Abstract

 Ornithobacterium rhinotracheale is a gram-negative, rod shaped bacterium of the Flavobacteriaceae family which is associated with respiratory disease and decreasing performance in poultry especially in chicken and TURKEY farms. This study was carried out to examine the seroprevalence of ORNITHOBACTERIUM RHINOTRACHEALE INFECTION (ORT) within commercial TURKEY farms in IRAN for the first time. A total of 420 serum samples collected from 21 meat-type TURKEY farms in different regions were examined for outer membrane protein of bacteria by IDEXX ELISA kit (Westbrook, ME, USA). Results showed that 13 of 21 (65%) of farms and 267 of 420 (63.6 %) sera were positive based on arithmetic mean titers (AMT) and interpretation of IDEXX ELISA kit. There was a positive correlation among ORT titers and the average of farms’ weight, feed conversion rate and mortality rate (P<0.05). Our study indicates that despite commercial TURKEY production is developing industry in IRAN, the seroprevalence of ORT is somehow high in IRANian meat-type TURKEY farms and consequently this respiratory pathogen can easily spread through premises especially in multi-age farms from elders to newly housed poults.

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