Scientific testing by the Canadian Food Inspection Agency cannot confirm a link between feed containing blood plasma and Porcine Epidemic Diarrhea virus cases in Canada, the Canadian Food Inspection Agency said Monday.
In mid-February, the CFIA conducted a bioassay study on U.S.-origin porcine blood plasma used in feed pellets produced by Grand Valley Fortifiers.
The study demonstrated that the porcine blood plasma in question contained PED virus capable of causing disease in pigs. However, the study could not demonstrate that the feed pellets containing the blood plasma were capable of causing disease.
The Agency says despite the findings, it will continue to analyze feed and feed ingredients, as well as epidemiological information gathered during the investigation.
In addition, the CFIA says it will examine any new lines of enquiry related to feed that may emerge, in particular from ongoing testing in Canada and the U.S.
The CFIA's investigation also included sampling and testing of feed, plasma and other feed ingredients from various Canadian and U.S. sources associated with farms in Canada on which PEDv has been detected. All test results on these samples were negative for PEDv.
The feed investigation was triggered on Feb. 9, after Ontario Ministry of Agriculture and Food testing found that U.S.-origin porcine blood plasma used in feed pellets produced by Grand Valley Fortifiers contained PED virus genetic material. As a precautionary measure, Grand Valley Fortifiers voluntarily withdrew the potentially affected feed pellets from the marketplace.
Samples of both the feed pellets and the porcine blood plasma ingredient were submitted to the CFIA's National Centre for Foreign Animal Disease for further testing. It was confirmed that both the blood plasma and the feed pellets contained PED virus genetic material; however, the bioassay study was required to confirm if this genetic material could cause illness in pigs, CFIA said.