Explanatory variables included the categorical variables age group (sucklers vs. weaners), ETEC (ETEC vs non-ETEC), fimbriae (F4 vs. F18 vs. F4/F18-negative), and hemolysis (hemolytic vs. non-hemolytic). Furthermore, they included the continuous variables ADD of neomycin usage three months ...
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为了应付极限的拍摄题材,SEL600F40GM搭载两颗XD线性马达,这也是继SEL135F18GM之后使用同样配置的望远镜头,从最近对焦距离到无限远之间的切换速度及反应都相当灵敏,就使用经验来说Sony A9还是比A7R III更能榨出SEL600F40GM的追焦性能。 SEL600F40GM身上备有4颗「对焦锁定按钮」,不论在何种拍摄姿态下皆可顺利操作,...
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Chicken egg-yolk antibodies against F18 fimbriae of Escherichia coli inhibit shedding of F18 positive E. coli by experimentally infected pigs Vet Microbiol, 54 (1997), pp. 329-341 View PDFView articleView in ScopusGoogle Scholar Kiarie et al., 2009 E. Kiarie, B.A. Slominski, D.O. Krause...
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