Immunized hens transfer circulating antibodies from blood to egg yolk by specific receptors on the surface of the ovarian follicle [7] . Immunized hens may continue to produce antibody-rich eggs for up to two years -also known as IgY, which shares great similarity to mammalian IgG, and is a reasonably stable bivalent protein with estimated molecular weight around 180 kDa [7] [8] . Egg yolk antibodies have been shown to be effective in immunohistochemical assays and for recognition of specific epitopes [9] . Polyclonal IgY have been previously described for the purification of polyepitope vaccine candidates against Plasmodium falciparum [10] , passive immunization against Eimeria acervulina [11] , immunoprophylactic protocols against influenza virus [12] , and analysis of tumoral biomarkers [13] , among others.