Viral Inclusion Body Hepatitis - Diseases of Poultry - The Poultry Site
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11/03/2015 VIRAL INCLUSION BODY HEPATITIS Diseases of Poultry The Poultry Site http://www.thepoultrysite.com/publications/6/diseasesofpoultry/189/viralinclusionbodyhepatitis 1/4 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 VIRAL INCLUSION BODY HEPATITIS 175.176.The viral inclusion body hepatitis (IBH) is an adenovirus infection characte¬rized by haemorrhages and dystrophic necrobiotic changes in the liver and kidneys, accompanied by intranuclear inclusion bodies. A characte¬ristic macroscopic lesion is the enlarged, dystrophic liver with yellowish colour and crumbly texture. Our Sponsors Partners Petersime CID LINES Halamid HyLine International rl consulting Biomin ECO Animal Health Vencomatic Group AB Vista Novogen Pas Reform Jansen Poultry Equipment Hubbard 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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Viral Inclusion Body Hepatitis
Transcript of Viral Inclusion Body Hepatitis - Diseases of Poultry - The Poultry Site
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11/03/2015 VIRALINCLUSIONBODYHEPATITISDiseasesofPoultryThePoultrySite
http://www.thepoultrysite.com/publications/6/diseasesofpoultry/189/viralinclusionbodyhepatitis 1/4
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BacterialDiseasesESCHERICHIACOLIINFECTIONSSALMONELLOSESPARATYPHOIDINFECTIONSFOWLCHOLERARIEMERELLAANATIPESTIFERINFECTIONSMYCOPLASMANECROTICENTERITISCHOLANGIOHEPATITISINBROILERCHICKENSGANGRENOUSDERMATITISBOTULISMAVIANTUBERCULOSIS
ViralDiseasesVIRALINCLUSIONBODYHEPATITISHAEMORRHAGICENTERITISOFTURKEYSEGGDROPSYNDROME1976ADENOVIRUSGROUPIASSOCIATEDINFECTIONSINFECTIOUSBURSALDISEASE(GUMBORO)INFECTIOUSBRONCHITIS(IB)LARYNGOTRACHEITISSWOLLENHEADSYNDROMEINFECTIOUSENCEPHALOMYELITISNEWCASTLEDISEASEFOWLPOXREOVIRUSINFECTIONS
NeoplasticDiseasesinPoultryVIRUSINDUCEDNEOPLASTICDISEASESMAREK'SDISEASELYMPHOIDLEUKOSISMYELOCYTOMATOSISERYTHROBLASTOSISADENOCARCINOMATOSIS
ParasiticDiseasesCOCCIDIOSISHISTOMONOSISASCARIDIOSISRAILLIETINOSISKNEMIDOKOPTOSIS
MycosesandMycotoxicosesASPERGILLOSISASPERGILLUSGRANULOMATOUSDERMATITISAFLATOXICOSISCANDIDIASISFUSARIOTOXICOSES
DeficiencyDiseasesVITAMINB2DEFICIENCYVITAMINBiDEFICIENCYVITAMINEDEFICIENCYFATTYLIVERHAEMORRHAGICSYNDROMESLIPPEDTENDON(PEROSIS)
OtherPULMONARYHYPERTENSION(ASCITIS)SYNDROMEINBROILERCHICKENSAMYLOIDOSISDEEPPECTORALMYOPATHYRUPTUREOFTHEGASTROCNEMIUSTENDONINBROILERBREEDERSCAGELAYERFATIGUEDYSCHONDROPLASIATHYPERKERATOSIS
VIRALINCLUSIONBODYHEPATITIS
175.176.The viral inclusion body hepatitis (IBH) is an adenovirus infectioncharacterizedbyhaemorrhagesanddystrophicnecrobioticchangesintheliverandkidneys, accompanied by intranuclear inclusion bodies. A characteristicmacroscopiclesionistheenlarged,dystrophicliverwithyellowishcolourandcrumblytexture.
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DiseasesofPoultryByIvanDinev,DVM,PhD
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GOUTHYPERANDROGENISMINBROILERCHICKENSEFFECTOFSTICKYWILLY(GALIUMAPARINE)SEEDSONHEALTHYSTATUSANDPRODUCTIONTRAITSINBROILERCHICKENSGIZZARDIMPACTIONINTURKEYPOULTSROUNDHEARTINTURKEYS(DILATEDCARDIOMYOPATHY)ACUTESELENIUMINTOXICATIONACUTEPROPANEBUTANEINTOXICATIONSPONTANEOUSRUPTUREOFTHECAUDIALRENALARTERYINTURKEYSSUBCUTANEOUSEMPHYSEMAGASTROINTESTINALIMPACTIONMALFORMATIONS
177.178.IBH outbreaks are encountered primarily in meat type chickens, mostcommonly at the age of 38 weeks. IBH often occurs as a secondary infection toimmunodeficiency resulting from other diseases (IBD, CIA). On the background ofdystrophic liver changes, haemorrhages of various intensity and size are outlined,thuscreatingavarietyofliverlesions.
179.180.Throughout IBH outbreaks, several serotypes from the 12 known avianadenoviruses (AAVs) of group I are isolated. The sick chickens cany the virus intheir excreta, kidneys, tracheal and nasal mucosa. The virus is resistant to manyenvironmental factorsandcouldbeeasily transmittedbyamechanical route.Thetransmissionofadenoviruses is realizedverticallybybreedereggsandhorizontally,via excreta (mainly faeces). In a number of cases, the dominating lesion is themassivemottledorstriatedhaemorrhagesoftheliver.
181.IBHischaracterizedbyasuddenonsetandasharply increaseddeathratethatreachespeakvaluesbythe3rd4thdayandreturnsbackwithinthenormalrangebythe 6th 7th day. The total death rate is usually under 10% but sometimes couldattain 30%.More rarely,macroscopically visible necrotic foci could be detected intheliver.
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182.Thekidneysareenlarged,paleandmottledwithmultiplehaemorrhages.
183.many instances of IBH, the amount of pericardial fluid is increased(hydropericardium).
184.185.Clinical signs could be observed only several hours prior to deathoccurrence. They consist in pale comb and wattles, depression and apathy.Sometimes, the skin is icteric. Often, ecchymoses and striated haemorrhages inskeletalmusclesareobserved.
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186\186"Microscopically, extensive dystrophic changes and necroses of liverparenchyma are detected. In the nuclei of hepatocytes, basophilic or eosinophilicinclusionbodiesaredetected.Thebasophilicinclusionbodiesareusuallydenseandoccupy the entire nuclear inner space (arrow b), whereas the eosinophilic ones areroundorirregularlyshapedandsurroundedbyalighthalo(arrowe).Thediagnosisisbaseduponthetypicalgross lesionsandthehistoryrecords.AprincipalapproachinIBHdiagnostics is thehistological investigation thathelps todetect the intranuclearinclusionbodies.IBHshouldbedistinguishedmainlyfromIBDandchickeninfectiousanaemia(CIA).With regard to IBHpreventionandcontrol, theeggsofbroilerparentflocks,where thedisease is consecutively appearing in theprogeny, shouldnot beusedforhatching.Theaccessofwildbirdsshouldbepreventedastheyarepotentialcarriersanddistributorsofthevirus.ThemostimportantstepsinIBHpreventionarethecontrolofIBDandCIA.Thereareneithervaccines,noraneffectivetreatment.
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