The goal of this study was to ascertain the impact soybean meal's temperature and heating duration as undegraded protein (UDP) on Bali cattle's dry matter (DM) organic (OM) degradation kinetics. Soybean meal is a feed ingredient with high content, which about 48%, rapidly degraded in rumen. In investigation, factorial design employed first factor being (60, 80, 100, 120°C), second time (10, 20,...