Coomercial chicks with IBD maternal antibody were vaccinated in the 18th day of incubation with a live IBD vaccine.This vaccine was also administered orally to 10 day-old chicks, from the same hatchery. On te 21th day, all subjects were experimentally infected with a virulent IBDV strain, causing serious changes of bursa of Fabricius of several chickens (edema, lymphocytic necrosis with significant presence of heterophils)
Efficacia di un vaccino somministrato in "ovo" contro la malattia di Gumboro (IBD)
COLETTI, Mauro
;DEL ROSSI, Emilia;FRANCIOSINI, Maria Pia;PASSAMONTI, Fabrizio;TACCONI, Giuseppina;
2000
Abstract
Coomercial chicks with IBD maternal antibody were vaccinated in the 18th day of incubation with a live IBD vaccine.This vaccine was also administered orally to 10 day-old chicks, from the same hatchery. On te 21th day, all subjects were experimentally infected with a virulent IBDV strain, causing serious changes of bursa of Fabricius of several chickens (edema, lymphocytic necrosis with significant presence of heterophils)File in questo prodotto:
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