A combined retrospective, prospective and experimental study of Ornithobacterium rhinotracheale infection in chickens
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چکیده
منابع مشابه
Experimental infection in turkeys and chickens with Ornithobacterium rhinotracheale.
Ornithobacterium rhinotracheale was found to cause growth retardation in both turkeys and chickens after experimental intra-air sac administration and to cause growth retardation together with airsacculitis and pneumonia after aerosol administration. Both turkey and chicken isolates of O. rhinotracheale were able to induce the same kind of respiratory inflammations and weight-gain losses in chi...
متن کاملVaccination of chickens against Ornithobacterium rhinotracheale infection.
Vaccination of young broilers with inactivated vaccines against experimental Ornithobacterium rhinotracheale challenge was found to be effective, but the results of vaccination were influenced, in a negative way, by the presence of maternal antibodies. The use of a strong adjuvant, such as mineral oil, in a bacterin was necessary to obtain good protection when maternal antibodies were present. ...
متن کاملExperimental Study on Tissue Tropism and Dissemination of H9n2 Avian Influenza Virus and Ornithobacterium Rhinotracheale Co- Infection in Spf Chickens
Forty-two, one-day-old specific pathogen-free (SPF) chickens were randomly divided into two groups. On 21st day of study, experimental group was infected intraocularly with 1×106 EID50 of H9N2 and intratracheally with 1× 1010 CFU of Ornithobacterium rhinotracheale (ORT). Control group was inoculated with sterile PBS intraocularly. The samples from various tissues were collected on days 2, 4, 6,...
متن کاملOrnithobacterium rhinotracheale and Mycoplasma synoviae in broiler chickens in Jordan.
A cross-sectional study was conducted from November 2008 to July 2010 in commercial broiler flocks in southern (n = 50) and northern (n = 50) areas of Jordan, to determine the flock-level prevalence of Ornithobacterium rhinotracheale (ORT) and Mycoplasma synoviae (MS) infections. Tracheal swabs were collected from commercial broilers with respiratory disease and tested by polymerase chain react...
متن کاملCharacterization of Ornithobacterium rhinotracheale Isolates from Commercial Chickens
Ornithohac/erium rhino/rachea/e (ORT) is a relatively rceently diseovered bacterium. which it is associated with respiratory diseases, Tracheal samplcs from carcasses of 100 roultry tlocks submitted to Razi Institute were examined for ORT isolation. Ali these tlocks were affected with respiratory disorders. Colonies of ORT were detected after 24h of incubation and identification of ORT isolates...
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ژورنال
عنوان ژورنال: Avian Pathology
سال: 2019
ISSN: 0307-9457,1465-3338
DOI: 10.1080/03079457.2019.1620915