[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.
INRA, Station de Recherches sur la Vache Laitière, L'Hermitage, France.
R
R
Vérité
B
B
Michalet-Doreau
F
F
Vedeau
P
P
Chapoutot
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.