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Title:   Author  item
                                            Lillehoj, Hyunitem
                                            NGYYEN, SA - GHEN IMMUMOLOGY INSTITUTitem
                                            DONAHUE, JOHN - GHEN IMMUNOLOGY INSTITUTEitem
                                            YOKOHAMA, A - GHEN IMMUNOLOGY INSTITUTEitem
                                            KODAMA, Y - GHEN IMMUNOLOGU INSTITUTE
  Submitted to: American Association of Veterinary Parasitologists Proceedings
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 2/20/2004
                                    Publication  Date: 5/4/2004
                                    Citation: Lillehoj, H.S., Ngyyen, S.V., Donahue, J.P., Yokohama, A.H., Kodama, Y. 2004. Passive protection against two eimeria species in chickens by orally administered antibodies specific for a single eimeria protein. American Association of Veterinary Parasitologists Proceedings p. 21.Interpretive Summary:
                                Technical Abstract: The protective effect of chicken egg antibody (IgY) powder prepared from hens hyperimmunized with a recombinant protein (3-1E) from Eimeria acervulina merozoites was evaluated. . The 3 treatment groups were given feed containing 0.1, 1 and 10% of the IgY powder, respectively.  The chickens were orally challenged with 103 E. tenella or 5 × 103 E. acervulina oocysts.  The best results were observed in the groups which received 10% of IgY powder and the oocyst production was significantly reduced.  Significant improvement in body weight gain was also seen. The results indicate that the passive immunization of chickens with antigen-specific IgY powder is a promising method to confer protection against coccidiosis.


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