Lack of transmission of porcine circovirus type 2 to weanling pigs by feeding them spray-dried porcine plasma

An experiment was conducted to determine whether spray-dried porcine plasma containing 2.47 x 10(5) DNA copies of porcine circovirus type 2 (PCV-2) could infect weanling pigs when fed to them. Five specific pathogen-free (SPF) weanling pigs were fed ad libitum for 45 days a control diet and six pigs were fed a test diet containing 8 kg SDPP per 100 kg feed. The two groups were housed in separate biosecurity level-3 rooms. None of the pigs in either group developed any clinical signs or became PCV-2 viraemic or seroconverted.