文章基本信息

标题：Epidemiological survey on the prevalence of Salmonella spp. in the Sardinian pig production chain, using real-time PCR screening method
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作者：Carlo Pala ; Tiziana Tedde ; Sara Salza 等
期刊名称：Italian Journal of Food Safety
电子版ISSN：2239-7132
出版年度：2019
卷号：8
期号：2
页码：110-114
DOI：10.4081/ijfs.2019.7843
出版社：PAGEPress Publications
摘要：The aim of this study was to evaluate the prevalence of Salmonella spp in the Sardinian pig production chain in order to establish the incidence of monophasic serovariant of Salmonella Typhimurium on isolates with molecular methods (realtime PCR and multiplex PCR) Samples were collected in three EC slaughterhouses, four small slaughterhouses annexed to farmhouses, one meat distribution center, four meat cutting laboratories and four sausage processing plants A total of 166 samples were collected and analyzed: 46 environmental samples, 48 finishing pigs, 16 piglets, 24 samples of nonprocessed meat, 28 meat preparations and 4 meat products All samples were processed with an initial screening using the realtime PCR MicroSEQ® Salmonella spp detection Kit (Applied biosystems, life technologies) and with the TaqMan® Realtime PCR to confirm the kit results Samples that tested positive for Salmonella spp were confirmed with cultural method using the standard ISO 6579 Positive samples were submitted to phenotypic identification One colony from each positive sample was serotyped with multiplex PCR method Salmonella spp was isolated in 7 on 166 samples (422 %) Among the positive samples, two came from finishing pigs, two belonged to the category meat preparations, two to meat products, one was an environmental sample Multiplex PCR confirmed that the collected strains belonged to the species Salmonella Typhimurium (1), Salmonella derby (3) and monophasic serovariant of Salmonella Typhimurium (3).
关键词：Salmonella;monophasic serovariant of Salmonella Typhimurium;real;time PCR;pork meat