CFIA不能确定饲料引发PED

　　新闻发布日期：2014年3月5日

　　由加拿大食品检验局（CFIA）进行的科学测试无法确认含有血浆的饲料与加拿大爆发的猪流行性腹泻（PED）的相关关系。

　　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.

　　根据2月18日的报道，CFIA对Grand Valley Fortifiers公司使用美国血浆蛋白制成的颗粒饲料进行了生物测定。

　　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.

　　这项研究表明这些问题血浆含有能够导致猪生病的PED病毒。然而，这项研究不能证明含有血浆的颗粒饲料是能够引起疾病。

　　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.

　　根据对科学的责任，该机构将继续分析饲料和饲料成分，以及在调查过程中收集到的流行病学资料，以确认CFIA控制可继续保护加拿大的家畜。此外， CFIA将研究调查与饲料生产相关的任何可能出现的线索，尤其是正在加拿大和美国进行的测试。

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

　　为了回应猪血浆蛋白的阳性检验结果，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

　　·启动国家紧急行动中心（ NEOC ）协调进行饲料的调查;

　　·跟进所收到的问题饲料，以确认自愿回收是有效的;

　　·提供处置问题饲料的科学指导依据;

　　·与美国官员密切合作，确认没有问题饲料可传给加拿大的生产商。

　　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.

　　该CFIA的调查还包括采样，测试饲料，血浆及其他饲料原料，这些来自加拿大和美国原料样品来自加拿大爆发PED的农场。这些样品的所有测试结果均为阴性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.

　　安大略省农业部和食品部（ OMAF ）测试发现Grand Valley Fortifiers公司的猪颗粒饲料中使用的美国源猪血浆蛋白粉含有PED后，于2月9日开始了饲料调查。为慎重起见，Grand Valley Fortifiers公司自愿收回了市场的潜在问题颗粒饲料。

　　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.

　　这些颗粒饲料和猪血浆蛋白原料均提交给CFIA国立外国动物疾病中心(NCFAD)。据证实，血浆和颗粒饲料均含有PED病毒遗传物质，然而，需要进行生物测定研究，确认该遗传物质是否能引起猪生病。

　　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能通过与患病动物接触，以及人的衣服，双手，设备，靴子和其他沾染感染动物粪便的工具迅速传播。因此，在考虑PED病毒的特性以及它是如何传播时，遵守良好的生物安全协议，防止疾病进一步的传播仍然是加拿大最好的措施。

　　英文来源：allaboutfeed

　　译者：畜牧人编辑IRIS

　　微评：明尼苏达大学的一项新研究表明，猪粪和水也可能是PED传染源。PED病毒的感染剂量非常低，甚至只要10-8。PED病毒在低温的泥浆和湿饲料中28天仍能存活，在新鲜粪便、饮用水和干饲料中能存活1-2个星期。因此，我们在分析疾病来源的时候，应从所面对的材料追踪查询，科学验证，方能对症下药，手到病除。