本欧洲标准定义了将酵母作为单一微生物成分或与其他微生物混合的饲料样品（添加剂，预混物和饲料）中的益生菌酵母的计数的一般规则。该标准不适用于定义为主要由矿物组成的含有至少40％粗灰的补充饲料的矿物饲料（理事会指令79/373/EEC）[4]。 饲料样品有不​​同类别: a）含有约109CFU/g至1010CFU/g（CFU =菌落形成单位）的添加剂。 b）预混合物，其含有约108CFU/g c）含有约106 CFU/g的饲料，膳食或丸剂，包括完整的饲料和牛奶替代品。 检测限定在ISO 7218中

This European Standard defines general rules for the enumeration of probiotic yeasts in feed samples (additives, premixtures and feeding stuffs) that contain yeast as a single microorganism component or in a mixture with other microorganisms. The standard is not applicable to mineral feeds which are defined as complementary feedingstuffs composed mainly of minerals and containing at least 40% crude ash (Council Directive 79/373/EEC) [4]. There are different categories of feed samples: a) Additives which contain about 109 CFU/g to 1010 CFU/g (CFU = colony forming units). b) Premixtures which contain about 108 CFU/g c) Feeds, meal or pellets, which contain about 106 CFU/g and include complete feedingstuffs, and milk replacers. The detection limit is as defined in ISO 7218.