DIAGNOSTICUL Î N PSEUDOPESTA AVIAR Ă (NEWCASTLE DISEASE)
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DIAGNOSTICUL ÎN PSEUDOPESTA AVIARĂ (NEWCASTLE DISEASE)
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Fam.Paramyxoviridae
Gen.Rubulavirus
9 serotipuri APMV–I to APMV– 9
APMV – serotipul 1
ARN
VelogeneTulpini :MezogeneLentogene
HemaglutininaNeuraminidaza
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• 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)
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Epidemiologie
Morbiditate: pana la100%Mortalitate: 90%
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Tablou Clinic
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Tablou Anatomopatologic
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Diagnosticul de laborator
HA – reactia de hemaglutinare
IHA – reactia de inhibare a hemaglutinarii
ELISA
PCR
IMUNOHISTOCHIMIA
HIBRIDIZAREA IN-SITU
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HA
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IHA
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