Selection and sampling of raw materials and feed for analysis Choice of analysis methods Determination of sampling frequency.
Composition: humidity, total ash, raw protein, fat content, starch, fibre, phosphorus and minerals, lignin, gelatinized starch, fatty acids, enzymes, amino acids, pigments and vitamins, Mycology : anti-nutritional factors (aflatoxins) Bacteriology : Salmonellae, Coliforms, Streptococcus. Undesirables: heavy metals, dioxins, Ergosterol, gossypol, PCB, GMO . Others : Stability, durability,
Statistic processing Correction of formulae and manufacturing procedures aimed at technical and economic optimisation.