diagnosticul Î n pseudopesta aviar Ă (newcastle disease)

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DIAGNOSTICUL Î N PSEUDOPESTA AVIAR Ă (NEWCASTLE DISEASE). Fam.Paramyxoviridae Gen. Rubulavirus 9 serotipuri APMV–I to APMV– 9 APMV – serotipul 1 ARN Velogene Tulpini :MezogeneLentogene. Hemaglutinina Neuraminidaza. Cultivare – oua embrianate – moartea embrionilor - PowerPoint PPT Presentation

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DIAGNOSTICUL ÎN PSEUDOPESTA AVIARĂ (NEWCASTLE DISEASE)

Fam.Paramyxoviridae

Gen.Rubulavirus

9 serotipuri APMV–I to APMV– 9

APMV – serotipul 1

ARN

VelogeneTulpini :MezogeneLentogene

HemaglutininaNeuraminidaza

• 4 patotipuri:• enteric asimptomatic - subclinic• Lentogenic

• Subclinic - tip respirator• Mezogenic

• Respiratorii si nervoase• Velogenic

• Neurotropic: Respiratorii si nervoase• Vicerotropic: leziuni hemoragice intestinale

•Cultivare – oua embrianate – moartea embrionilor•Culturi celulare – efect citopatic

Teste de virulentaTimpul mediu de mortalitate al embrinilor de 9 zile (Mean Death Time in Eggs -OIE)Indicele de patogenitate intracerebrala la pui de 6 saptamani (Intracerebral Pathogenity Index - OIE)Indicele de patogenitate intravenoasa (Intravenous Pathogenity Index - OIE)

Epidemiologie

Morbiditate: pana la100%Mortalitate: 90%

Tablou Clinic

Tablou Anatomopatologic

Diagnosticul de laborator

HA – reactia de hemaglutinare

IHA – reactia de inhibare a hemaglutinarii

ELISA

PCR

IMUNOHISTOCHIMIA

HIBRIDIZAREA IN-SITU

HA

IHA

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