Effects of SEU Condition In Incubation of Embryonated Chicken Eggs Inoculated With Avian Influenza (H9N2) Virus by the Intra-Allantoic Route.

摘要

ABSTRACT Older laying breeder flocks causes various abnormalities in appearance of eggs. Big and spherical eggs are cause of small end up (SEU) position in the field and virus replication process. Thus in this study we evaluate the effect of SEU position in embryo deaths and avian influenza virus (AIV) replication cycle. 1200 embryonated chicken eggs (ECEs) from laying breeder flock at 60-65 weeks of age were divided in 3 groups. First group was in large end up (LEU) position pre and post inocu.