新聞發布日期：2014年3月5日

　　由加拿大食品檢驗局（CFIA）進行的科學測試無法確認含有血漿的飼料與加拿大爆發的豬流行性腹瀉（PED）的相關關系。

　　As reported on February 18, the CFIA conducted a bioassay study on US-origin porcine blood plasma used in feed pellets produced by Grand Valley Fortifiers.

　　根據2月18日的報道，CFIA對Grand Valley Fortifiers公司使用美國血漿蛋白制成的顆粒飼料進行了生物測定。

　　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.

　　這項研究表明這些問題血漿含有能夠導致豬生病的PED病毒。然而，這項研究不能證明含有血漿的顆粒飼料是能夠引起疾病。

　　In line with our commitment to science, the Agency will continue to analyse feed and feed ingredients, as well as epidemiological information gathered during the investigation, in order to verify that CFIA controls continue to protect Canadian livestock. In addition, the CFIA will examine any new lines of enquiry related to feed that may emerge, in particular from ongoing testing in Canada and the US.

　　根據對科學的責任，該機構將繼續分析飼料和飼料成分，以及在調查過程中收集到的流行病學資料，以確認CFIA控制可繼續保護加拿大的家畜。此外， CFIA將研究調查與飼料生產相關的任何可能出現的線索，尤其是正在加拿大和美國進行的測試。

　　In response to the positive test results in porcine blood plasma, the CFIA:

　　為了回應豬血漿蛋白的陽性檢驗結果，CFIA做出:

　　·activated its National Emergency Operations Centre (NEOC) to coordinate the feed investigation;

　　·followed up with farms that received the affected feed to confirm the voluntary withdrawal was effective;

　　·provided science-based guidance on disposing of potentially affected feed;

　　·worked closely with US officials to confirm that none of the affected plasma was shipped to other pig feed manufacturers in Canada

　　·啟動國家緊急行動中心（ NEOC ）協調進行飼料的調查;

　　·跟進所收到的問題飼料，以確認自愿回收是有效的;

　　·提供處置問題飼料的科學指導依據;

　　·與美國官員密切合作，確認沒有問題飼料可傳給加拿大的生產商。

　　The CFIA's investigation also included sampling and testing of feed, plasma and other feed ingredients from various Canadian and US sources associated with farms in Canada on which PED has been detected. All test results on these samples were negative for PED.

　　該CFIA的調查還包括采樣，測試飼料，血漿及其他飼料原料，這些來自加拿大和美國原料樣品來自加拿大爆發PED的農場。這些樣品的所有測試結果均為陰性PED。

　　The feed investigation was triggered on February 9, after Ontario Ministry of Agriculture and Food (OMAF) testing found that US-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.

　　安大略省農業部和食品部（ OMAF ）測試發現Grand Valley Fortifiers公司的豬顆粒飼料中使用的美國源豬血漿蛋白粉含有PED后，于2月9日開始了飼料調查。為慎重起見，Grand Valley Fortifiers公司自愿收回了市場的潛在問題顆粒飼料。

　　Samples of both the feed pellets and the porcine blood plasma ingredient were submitted to the CFIA's National Centre for Foreign Animal Disease (NCFAD) 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.

　　這些顆粒飼料和豬血漿蛋白原料均提交給CFIA國立外國動物疾病中心(NCFAD)。據證實，血漿和顆粒飼料均含有PED病毒遺傳物質，然而，需要進行生物測定研究，確認該遺傳物質是否能引起豬生病。

　　PED can spread rapidly through contact with sick animals, as well as through people's clothing, hands, equipment, boots, and other tools contaminated with the faeces of infected animals. Therefore, considering the characteristics of PED virus and how it spreads, adhering to good biosecurity protocols remains the best measure to prevent further introduction or spread of this disease in Canada.

　　PED能通過與患病動物接觸，以及人的衣服，雙手，設備，靴子和其他沾染感染動物糞便的工具迅速傳播。因此，在考慮PED病毒的特性以及它是如何傳播時，遵守良好的生物安全協議，防止疾病進一步的傳播仍然是加拿大最好的措施。

　　英文來源：allaboutfeed

　　譯者：畜牧人編輯IRIS

　　微評：明尼蘇達大學的一項新研究表明，豬糞和水也可能是PED傳染源。PED病毒的感染劑量非常低，甚至只要10-8。PED病毒在低溫的泥漿和濕飼料中28天仍能存活，在新鮮糞便、飲用水和干飼料中能存活1-2個星期。因此，我們在分析疾病來源的時候，應從所面對的材料追蹤查詢，科學驗證，方能對癥下藥，手到病除。