Abstract: The present invention discloses a method for producing a protein in a plant comprising i) transforming the plant with a nucleotide sequence which expresses a porcine parvovirus VP2 subunit protein, or a fragment or a derivative thereof, and ii) growing the transformed plant. The present invention also teaches harvesting and feeding the transgenic plant, or an extract obtained from the transgenic plant to animals. Further, the protein produced by the method of the present invention may be partially or fully purified from the plant, and optionally reformulated into an alternate dosage form and administered to an animal. The protein may be used to confer resistance to porcine parvoviuus in an animal.