Krmiva: Metody vzorkování a analýzy - Detekce a stanovení počtu bakterií rodu Enterococcus (E. faecium) používaných jako doplňkové látky v krmivech (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.5.2022
Designation standards: ČSN EN 15788
Classification mark: 467049
Catalog number: 514230
Publication date standards: 1.5.2022
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This document specifies general rules for the enumeration of enterococci (E. faecium) in feeding stuffs (additives, premixtures and compound feeds excluding mineral feeds) that contain enterococci as a single microorganism component or in a mixture with other microorganisms. Applying the method to premixtures and compound feeds with critical amounts of copper demands a special procedure (see A.2). The document is not applicable to mineral feeds which are defined as complementary feeding stuffs composed mainly of minerals and containing at least 40 % crude ash (Regulation (EC) 767/2009). There are different categories of feed samples: a) Additives containing about 1010 colony forming units (CFU)/g; b) Premixtures containing 1011 CFU/kg; c) Compound feeds, meal or pellets which contain about 109 CFU/kg