[Degradability in small bags of nitrogenous components of feed concentrates: standardization of the method and intra- and interlaboratory variability].
In sacco degradability of feed protein (DT) was measured in 13 feedstuffs by 4 laboratories according the French standardized procedure. Adjustment for variations in microbial activity by reference to DM disappearance of a standard sample of lucerne decreased within and between lab variability. When the standardized procedure was carefully followed, results were in rather good agreement between labs.
Vérité
R
R
INRA, Station de Recherches sur la Vache Laitière, L'Hermitage, France.
Michalet-Doreau
B
B
Vedeau
F
F
Chapoutot
P
P
D000821:Animal Feed; D000818:Animals; D002417:Cattle; D009584:Nitrogen / Q000378:metabolism*; D015588:Observer Variation; D012015:Reference Standards; D015203:Reproducibility of Results; D012107:Research Design; D012417:Rumen / Q000378:metabolism*
D009584:Nitrogen
Dégradabilité en sachets des matières azotées des aliments concentrés: standardisation de la méthode et variabilités intra- et interlaboratoires.