Causes, Symptoms - Diseases of Poultry - The Poultry Site
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11/03/2015 REOVIRUS INFECTIONS Diseases of Poultry The Poultry Site http://www.thepoultrysite.com/publications/6/diseasesofpoultry/200/reovirusinfections 1/3 Subscribe | Marketing Packages | Forums | Cookie Law | Search here Follow Bacterial Diseases ESCHERICHIA COLI INFECTIONS SALMONELLOSES PARATYPHOID INFECTIONS FOWL CHOLERA RIEMERELLA ANATIPESTIFER INFECTI MYCOPLASMA NECROTIC ENTERITIS CHOLANGIOHEPATITIS IN BROILER CH GANGRENOUS DERMATITIS BOTULISM AVIAN TUBERCULOSIS Viral Diseases VIRAL INCLUSION BODY HEPATITIS HAEMORRHAGIC ENTERITIS OF TURKE EGG DROP SYNDROME 1976 ADENOVIRUS GROUP I ASSOCIATED INFECTIOUS BURSAL DISEASE (GUMB INFECTIOUS BRONCHITIS (IB) LARYNGOTRACHEITIS SWOLLEN HEAD SYNDROME INFECTIOUS ENCEPHALOMYELITIS NEWCASTLE DISEASE FOWL POX REOVIRUS INFECTIONS Neoplastic Diseases in Poultry VIRUSINDUCED NEOPLASTIC DISEAS LYMPHOID LEUKOSIS MYELOCYTOMATOSIS ERYTHROBLASTOSIS ADENOCARCINOMATOSIS Parasitic Diseases COCCIDIOSIS HISTOMONOSIS ASCARIDIOSIS RAILLIETINOSIS KNEMIDOKOPTOSIS Mycoses and Mycotoxicoses ASPERGILLOSIS ASPERGILLUS GRANULOMATOUS DER AFLATOXICOSIS CANDIDIASIS FUSARIOTOXICOSES Deficiency Diseases VITAMIN B2 DEFICIENCY VITAMIN Bi DEFICIENCY VITAMIN E DEFICIENCY FATTY LIVER HAEMORRHAGIC SYNDR SLIPPED TENDON (PEROSIS) Other PULMONARY HYPERTENSION (ASCITIS AMYLOIDOSIS DEEP PECTORAL MYOPATHY RUPTURE OF THE GASTROCNEMIUS T CAGE LAYER FATIGUE DYSCHONDROPLASIA THYPERKERATOSIS REOVIRUS INFECTIONS 271.Viral arthritis/tenosynovitis. The most frequent reovirusassociated disease in poultry is viral arthritis. Clinically it is manifested by lameness and swellings affecting primarily tarsometatarsal joints and the feet. Many infected birds are in a good general condition, but some could be lethargic and exhausted. The mortality is very low. The infections affect predominantly meat type poultry. 272.In some cases, joint cavities or tendon sheaths contain a small amount of straw yellow exudate whereas in other the exudate is haemorrhagic or fibrinous. 273.. Fibrinous tenosynovitis. The inflammation of the tendon progresses to a chronic type lesion characterized by tissue fibrosis in the affected area. The aetiological agent is a reovirus, member of the Orthoreovirus genus, Reoviridae family. Several serotypes are identified. For their identification, the agar gel precipitation test could Our Sponsors Partners Pas Reform Novogen HyLine International Vencomatic Group Biomin AB Vista CID LINES ECO Animal Health Jansen Poultry Equipment Petersime Halamid rl consulting Grimaud Freres 3.2k Like Book Contents Diseases of Poultry By Ivan Dinev, DVM, PhD News & Analysis Features Markets & Reports Knowledge Centre Business Directory Events Our Shop Our sites
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Causes, Symptoms
Transcript of Causes, Symptoms - Diseases of Poultry - The Poultry Site
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11/03/2015 REOVIRUSINFECTIONSDiseasesofPoultryThePoultrySite
http://www.thepoultrysite.com/publications/6/diseasesofpoultry/200/reovirusinfections 1/3
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BacterialDiseasesESCHERICHIACOLIINFECTIONSSALMONELLOSESPARATYPHOIDINFECTIONSFOWLCHOLERARIEMERELLAANATIPESTIFERINFECTIONSMYCOPLASMANECROTICENTERITISCHOLANGIOHEPATITISINBROILERCHICKENSGANGRENOUSDERMATITISBOTULISMAVIANTUBERCULOSIS
ViralDiseasesVIRALINCLUSIONBODYHEPATITISHAEMORRHAGICENTERITISOFTURKEYSEGGDROPSYNDROME1976ADENOVIRUSGROUPIASSOCIATEDINFECTIONSINFECTIOUSBURSALDISEASE(GUMBORO)INFECTIOUSBRONCHITIS(IB)LARYNGOTRACHEITISSWOLLENHEADSYNDROMEINFECTIOUSENCEPHALOMYELITISNEWCASTLEDISEASEFOWLPOXREOVIRUSINFECTIONS
NeoplasticDiseasesinPoultryVIRUSINDUCEDNEOPLASTICDISEASESMAREK'SDISEASELYMPHOIDLEUKOSISMYELOCYTOMATOSISERYTHROBLASTOSISADENOCARCINOMATOSIS
ParasiticDiseasesCOCCIDIOSISHISTOMONOSISASCARIDIOSISRAILLIETINOSISKNEMIDOKOPTOSIS
MycosesandMycotoxicosesASPERGILLOSISASPERGILLUSGRANULOMATOUSDERMATITISAFLATOXICOSISCANDIDIASISFUSARIOTOXICOSES
DeficiencyDiseasesVITAMINB2DEFICIENCYVITAMINBiDEFICIENCYVITAMINEDEFICIENCYFATTYLIVERHAEMORRHAGICSYNDROMESLIPPEDTENDON(PEROSIS)
OtherPULMONARYHYPERTENSION(ASCITIS)SYNDROMEINBROILERCHICKENSAMYLOIDOSISDEEPPECTORALMYOPATHYRUPTUREOFTHEGASTROCNEMIUSTENDONINBROILERBREEDERSCAGELAYERFATIGUEDYSCHONDROPLASIATHYPERKERATOSIS
REOVIRUSINFECTIONS
271.Viral arthritis/tenosynovitis. The most frequent reovirusassociated disease inpoultryisviralarthritis.Clinicallyitismanifestedbylamenessandswellingsaffectingprimarily tarsometatarsal joints and the feet. Many infected birds are in a goodgeneralcondition,butsomecouldbe lethargicandexhausted.Themortality isverylow.Theinfectionsaffectpredominantlymeattypepoultry.
272.Insomecases,jointcavitiesortendonsheathscontainasmallamountofstrawyellowexudatewhereasinothertheexudateishaemorrhagicorfibrinous.
273..Fibrinoustenosynovitis.Theinflammationofthetendonprogressestoachronictype lesion characterized by tissue fibrosis in the affected area. The aetiologicalagent is a reovirus,memberof theOrthoreovirusgenus,Reoviridae family.Severalserotypesare identified. For their identification, the agar gel precipitation test could
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DiseasesofPoultryByIvanDinev,DVM,PhD
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GOUTHYPERANDROGENISMINBROILERCHICKENSEFFECTOFSTICKYWILLY(GALIUMAPARINE)SEEDSONHEALTHYSTATUSANDPRODUCTIONTRAITSINBROILERCHICKENSGIZZARDIMPACTIONINTURKEYPOULTSROUNDHEARTINTURKEYS(DILATEDCARDIOMYOPATHY)ACUTESELENIUMINTOXICATIONACUTEPROPANEBUTANEINTOXICATIONSPONTANEOUSRUPTUREOFTHECAUDIALRENALARTERYINTURKEYSSUBCUTANEOUSEMPHYSEMAGASTROINTESTINALIMPACTIONMALFORMATIONS
be used. Reoviruses are highly resistant to a number of environmental factors(temperature,pHetc.).
274..Stuntingsyndrome inbroilers.Thestuntingsyndrome inbroilers isassociatedwith a reovirus infection but according to some studies, the role of the reovirus isprobably secondary. It is characterized by a considerably reduced live weight inaffectedbirdsandavariousdegreeofununiformityintheflockvaryingfrom510%to4050%,usuallyseenaftertheageof14days.
275.Thegrowingprimarywingfeathersareabnormallybigforchickenswithretardedgrowth, they protrude at various angles, so the disease is termed ..helicopterdisease".Onedayoldchickensarethemostsusceptibletotheinfection.
276.Usually,ahighdegreeatrophyofthepancreasisobserved.Reovirusesareshedwith faecesandcouldcontaminate theeggshells.Thetransmissionof the infectiontosusceptiblechickensisrealizedhorizontally.Theverticalrouteof transmission isalsoproved.Reovirusescouldpersistininfectedbirdsformorethan40weeks.
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277.278.The small intestine is pale, dilated and contain indigested forage. Thetentative diagnosis of viral arthritis and stunting syndrome could be made on thebasis of symptoms and lesions. The detection of reovirus antibodies via ELISAsupports the diagnosis. Viral arthritis should be differentiated from M. synov/aeinduced, staphylococcal arthrites and the spontaneous rupture of the tendon of thegastrocnemius muscle. The vaccination of broiler breeder flocks with live orinactivatedvaccinesprotectsonedayoldchicks. Infectedbirdsshouldbe removedfrom thepremises.The iodinedisinfectantsareconsideredeffective for inactivationofagents.
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