In ovo vaccination against coccidiosis
AssigneePfizer Inc.
InventorsNigel A. Evans, Robert Craig Findly, Frederick H. Weber
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Abstract
The invention relates to a method of vaccinating a domesticated bird against coccidiosis comprising administering in ovo an effective immnunizing dose of live Eimeria sporozoites or merozoites, or a mixture thereof. In a preferred embodiment, the domesticated bird that is vaccinated is a chicken or turkey.
Claims24
A method of vaccinating a chicken against coccidiosis comprising administering in ovo, during the final quarter of incubation, an effective immunizing dose of live Eimeria sporozoites, wherein the dose is administered by in ovo injection.
A method of vaccinating a chicken against coccidiosis comprising administering in ovo, during the final quarter of incubation, an effective immunizing dose of live Eimeria merozoites, wherein the dose is administered by in ovo injection.
Dependencies are inferred from the claim text.