SENSITIVITY OF CULTURE ORNITHOBACTERIUM RHINOTRACHEALE TO ANTIBIOTICS ANTIBIOTICS

Authors

  • V. B. Dukhnytskyi National University of Life and Environmental Sciences of Ukraine
  • A. M. Tyshkivska National University of Life and Environmental Sciences of Ukraine

Abstract

Ornitobakterialnyrhinotracheitisreferstothegroupofrespiratorydisea ses,whichcurrentlyisoneofthemajorpoultryindustryproblemssinceleadtosignificantec onomiclossesduetolostproductivityincommercialandreproductivestage,deterioration ofthequalityofeggsanddecreaseincrementsandincreasedcullingofbroilers.Thecause ofthesediseasesisassociatedwiththeactionofvariousfactors,usuallymutuallyreinforci ngeachother. ThediseasehasbecomewidespreadinEurope, America, AsiaandAfrica. A largenumberofspeciesofpathogens, rapiddevelopmentofresistancetoantibiotics, difficultiesindiagnosis– thesefactorsmakeitdifficultforthebirdtocureforthisdisease. Isolationofthepathogenbyclassicalbacteriologicalmethodsisanextremelycomp lexprocess, andthereactionofsensitivitytoantibioticsof a circulatingspeciestakes a longtimeanddoesnotalwaysgivethedesiredresult. Butthechoiceoftherightchemotherapeuticdrugforfightingthepathogenisthemaincondi tionforsuccessfultreatmentandtheguaranteeofthewell-beingoftheherd. Toconductresearch, pathologicalmaterialfrom a clinicallyillpoultrywasselected, withsignsofinvolvementofrespiratoryorgans.

ThecausativeagentofOrnitobacteriumrinotrahealewasisolatedbybacteriologicalmeth odsofinvestigation. Forthediagnosis, moleculargeneticstudiesofwashingsfromthetrachea, usingthe PCR method, wereused. SensitivitytoantibioticsofOrnitobacteriumrinotrahealeculture, isolatedfrombroilerturkeys, wasdeterminedby a disk-diffusionmethod. Identificationoftheculturewasconfirmedbybiochemicaltests.Tosetupasensitivityr esponse,discswithantibioticswereused.Whenanalyzingtheantibioticsusceptibilit yofisolatedstrainsofmicroorganisms,optimalvaluesofthediameterofgrowthretard ation,characterizingthesensitivitylevelsforeachantibiotic,weretakenintoaccount. Accordingtoourstudies,thecirculatingtypeofagentappearedtobesensitivetoenrofl oxacin (27.0 mm zoneofgrowthinhibition), oxytetracycline (25.5 mm), amoxicillin (24.0 mm), doxycycline (22.3 mm), tylosin, andflortenipolutiamulin– thezoneofgrowthretardationof 22.0, 21.5 and 18 mm, respectively. Keywords: ornithobacteriosis, Ornithobacteriumrhinotracheale, tilmicosin, enrofloxacin, ORT

References

Tatarchuk, O. (2009) Borba s ornytobakteryozom v broilernomptytsevodstve

[Fighting with ornithobacteriosis in broiler poultry farming]. Veterynaryia, 12, 31–33.

(in Russian)

Hliebova, K. V., Maiboroda, O.V. (2015). Poshyrenniabakteriozivptytsi v

ptakhohospodarstvakhUkrainy [Distribution of bird bacteria in poultry farms of

Ukraine].Problemyzooinzh. ta vet. Med., 30 (2), 153–157. (in Ukrainian)

van Empel, P. C. M., Hafez H. M. (2005).Ornithobacteriumrhinotracheale: a

review. Avian Pathology, American Association of Avian Pathologists, 28, 217–227.

Wyffels, R., Homez, J. (2007). Pasteurellaanatipestifer isolatedfrom

respiratory lesions in partridges kept in captivity. VlaamsDiergeneeskundi g

Tijdschrift, 59, 105–106.

Ornithobacterium rhinotracheale Antibody Test Kit For the detection of

antibody to O.r. in Chickens and Turkeys. BioChek Poultry Immunoassays.

Van Empel, P.C.M. (1998). Ornithobacteriumrhinotracheale: current status and

control. In Proceedings of the 1st International Symposium on Turkey Diseases, Berlin,

–137.

van Empel, P., van den Bosch, N., LoeffenH. (1997).Identification and serotyping

of Ornithobacteriumrhinotracheale. Journal of Clinical Microbiology, 35, 418–421.

Cauwerts, K., Herdt, P., Haesebrouck, F. (2004). The effect of

Ornithobacteriumrhinotracheale vaccination of broiler breeder chickens on the

performance of their progeny. Avian Pathology, American Association of Avian

Pathologists, 31, 619–624.

Published

2019-03-05

Issue

Section

Article