Abstract:In this trial fertile eggs from two different flocks of breeders (aged 30 and 60 weeks) from the same commercial line were incubated under commercial conditions. After hatching, birds were feathersexed and selected. Birds were allocated in four groups. Two of these groups were fed just after placement, while the other two were fed only after 12 hours of housed. Blood samples were collected weekly, starting at day one, and antibodies against Newcastle disease, Infectious Bronchitis and Infectious Bursal Disease… Show more
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