Feed inspection: Checking the composition using microscopy

Starting in January 2004 and following the changes in the regulations on animal feeds, producers of compound feeds will have to indicate all raw materials composing a mixture. The exact percentage of each component will also have to be indicated. Control authorities of the Swiss Federal Research Sta...

Full description

Saved in:
Bibliographic Details
Published inRevue suisse d'agriculture Vol. 35; no. 3
Main Authors Roetschi, A, Frick, G, Hauswirth, H. (Station federale de recherches en production animale (RAP), Posieux (Switzerland))
Format Journal Article
LanguageFrench
Published 01.05.2003
Subjects
ALIMENT POUR ANIMAUX
BANQUE DE DONNÉES
BASES DE DATOS
BYPRODUCTS
FEEDS
INGREDIENTES
INGREDIENTS
INGRÉDIENT
MATERIAS PRIMAS
MATIÈRE PREMIÈRE
MICROSCOPIA
MICROSCOPIE
MICROSCOPY
PIENSOS
RAW MATERIALS
SOUS-PRODUIT
SUBPRODUCTOS
SUISSE
SUIZA
SWITZERLAND
Online AccessGet more information

Cover

More Information
Summary:Starting in January 2004 and following the changes in the regulations on animal feeds, producers of compound feeds will have to indicate all raw materials composing a mixture. The exact percentage of each component will also have to be indicated. Control authorities of the Swiss Federal Research Station for Animal Production in Posieux (RAP) have to check that these rules are followed both as regards labelling as well as the correctness of the composition compared with the declared content. Checking the composition of animal feeds is done by means of microscopy analysis of several fractions of a sample. Particles are determined and sorted, then weighed. The percentage of each product is calculated for the whole sample. This task requires an exhaustive knowledge of products and by-products used in compound animal feeds. To acquire this skill, the microscopy laboratory of the RAP possesses literature and a collection of raw materials that are used for comparative studies. We show here the most frequently used components together with some of their microscopic characteristics. Some of the rarer materials and forbidden substances are also illustrated.
Bibliography:Q54
2003100186
ISSN:0375-1325