Assessment of the DVE/OEB system for protein evaluation in ruminants

The DVE/OEB2010 system (Van Duinkerken et al., 2011) for protein e valuation in ruminants is an update of the DVE/OEB 1994 system (Tamminga et al., 1994). In the DVE/OEB 2010 system more detail and differentiation is included concerning represen tation of chemical components in feed, rumen degradation characteristics of these components, ef ficiency of microbial protein synthesis and the fractional passage rates. Both systems were assessed for their ability to predict milk protein yield (MiP).