Vaccines for coccidiosis comprising live sporulated oocysts from strains of eimeria species
AssigneeNational Research Development Corporation
InventorsVincent McDonald, Martin W. Shirley
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Abstract
Vaccines active against coccidiosis in domestic fowls contain attenuated precocious strains of Eimeria species.
Claims18
A live vaccine for use in combating coccidiosis in chickens comprising an effective concentration of live sporulated oocysts of a strain of Eimeria acervulina having a prepatent time in chickens between 60 and 84 hours, of a strain of Eimeria maxima having a prepatent time in chickens of between 80 and 120 hours, of a strain of Eimeria tenella having a prepatent time in chickens between 90 and 125 hours, of a strain of Eimeria necatrix having a prepatent time in chickens between 90 and 126 hours, of a strain of Eimeria mitis having a prepatent time in chickens between 60 and 84 hours, of a strain of Eimeria brunetti having a prepatent time in chickens between 70 and 110 hours, and of live sporulated oocysts of a strain of Eimeria praecox having a prepatent time in chickens between 44 and 75 hours and an effective carrier.
Dependencies are inferred from the claim text.