Djurfoder

Ämnesområden: Djurfoder
Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 20 feb 2020
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This standard describes a method of Iodium-131, Caesium-134 and Caesium-137 massic activity (Bq/kg) determination in animal feed. Today, the most commonly used method for identification and quantification of radioactivity from these radionuclides in feed samples is high-resolution gamma-ray spectrometry. It is based on analysis of full-energy peaks (FEP) of the emitted gamma rays. Therefore, care should be taken to use appropriate energy and efficiency calibrations for each detector and test portion used. In this standard, general guidance on the preparation of feed samples is provided together with specific information on high resolution gamma-ray spectrometry of the three radionuclides Iodium-131, Caesium-134 and Caesium-137. More information on these and related topics can be found in specific standards referred to in this document. For example, generic advice on the equipment selection, detectors and quality assurance for gamma-ray spectrometry can be found in ISO 20042:2016. The current standard aims to be complementary to existing standards, as an aid to laboratory practitioners that are faced with a situation, which requires response to the current topic without having to go through and interpret standards with general descriptions of gamma-ray spectrometry in order to measure in a standardised way. This standard contains information specific to the three radionuclides that it covers. Examples are provided in Annex …(to be added).

Ämnesområden: Djurfoder
Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 7 apr 2020
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This documentdefines general rules for the enumeration of bacilli in feeding stuffs (additives, premixtures and compound feeds including mineral feeds) that contain bacilli as a single microorganism component or in a mixture with other microorganisms. 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 to 1010 CFU/kg.

The detection limit is defined in EN ISO 7218.

Ämnesområden: Djurfoder
Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 7 apr 2020
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This document defines 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 compound feeds with critical amounts of copper demands a special procedure (see Annex A). 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 R767/2009) [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.

The detection limit is as defined in EN ISO 7218.

Ämnesområden: Djurfoder
Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 7 apr 2020
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This document defines general rules for the enumeration of lactobacilli in feedingstuffs (additives, premixtures and compound feeds excluding mineral feeds) that contain lactobacilli as a single microorganism component or in a mixture with other microorganisms. Applying the method to compound feeds with critical amounts of copper demands a special procedure (see Annex A). 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 R767/2009) [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.

The detection limit is defined in EN ISO 7218.

Ämnesområden: Djurfoder
Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 7 apr 2020
Se merSe mindre
 

This document defines general rules for the enumeration of enterococci (E. faecium) in feedingstuffs (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 compound feeds with critical amounts of copper demands a special procedure (see Annex A). 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 R767/2009) [4].

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;

The detection limit is defined in EN ISO 7218.

Ämnesområden: Djurfoder
Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 7 apr 2020
Se merSe mindre
 

This documentdefines general rules for the enumeration of bacilli in feeding stuffs (additives, premixtures and compound feeds including mineral feeds) that contain bacilli as a single microorganism component or in a mixture with other microorganisms. 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 to 1010 CFU/kg.

The detection limit is defined in EN ISO 7218.