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BS EN 15786:2021

BS EN 15786:2021

$142.49

Animal feeding stuffs: Methods of sampling and analysis. Detection and enumeration of Pediococcus spp. used as feed additive

Published By Publication Date Number of Pages
BSI 2021 24
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This document specifies general rules for the enumeration of pediococci in feeding stuffs (additives, premixtures and compound feeds excluding mineral feeds) that contain pediococci 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) [3]. There are different categories of feed samples: a) Additives containing about 1010 colony forming units (CFU)/g; b) Premixtures containing about 1011 CFU/kg; c) Compound feeds, meal or pellets which contain about 109 CFU/kg.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
9 5 Diluents and culture media
5.1 Diluents
10 5.2 Culture media
5.2.1 General
5.2.2 Composition
11 5.2.3 Preparation
12 6 Apparatus
13 7 Sampling
8 Preparation of test sample
14 9 Procedure
9.1 Samples with a single or multi-component added microflora
9.2 Preparation of poured agar plates for spread plate method
9.3 Preparation of MRS agar for pour plate method
9.4 Preparation of the initial suspension and decimal dilutions
15 9.5 Inoculation and incubation of plates
9.5.1 General
16 9.5.2 Spread plate method
9.5.3 Pour plate method
9.6 Enumeration of colonies
9.7 Confirmation
17 10 Expression of results
18 11 Precision
11.1 General
11.2 Interlaboratory study
11.3 Repeatability
11.4 Reproducibility
12 Test report
19 Annex A (informative) Notes on the procedure
A.1 General
A.2 Critical copper concentration
20 Annex B (informative)Results of the interlaboratory study

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BS EN 15786:2021
$142.49