Feed Clusters According to In Situ and In Vitro Ruminal Crude Protein Degradation.

ABSTRACT: Effective degradation (ED) of crude protein (CP) was estimated in vitro at 0.02, 0.05 and 0.08 h^-1 assumed ruminal passage rates for a total of 40 feedstuffs, for which in situ ED was available and used as reference degradation values. For this, the Streptomyces griseus protease test was used. The differences between in vitro CP degradation and the in situ CP degradation values were lowest in legume grains and highest in cereal by-products and barley. The differences between in situ and in vitro ED were expressed using a degradation quotient (degQ), where degQ = (ED_{in vitro} - ED_{in situ})/ED_{in situ}. Among the tested feedstuffs, eight specific clusters were identified according to degQ for the assumed passage rates. The feedstuffs cl

SUBMITTER: Okon P 

PROVIDER: S-EPMC9855172 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature