Abstract: One or more partial oxidation products of glycerol are reacted with a protein-containing fodder or fodder precursor to provide a rumen undegradable protein-containing ruminant feed product. The reaction may take place more rapidly, or at lower addition levels, or at lower temperatures than is the case when reacting spent sulfite liquor with protein-containing fodder. The partial oxidation products conveniently may be provided as a glycerose liquor containing glycerose and other side products of a glycerol oxidation reaction. The glycerose liquor may in turn conveniently be prepared by partially oxidizing biodiesel-derived glycerol.

Abstract: Glycerose is prepared by partially oxidizing biodiesel-derived glycerol to provide a glycerose liquor containing glycerose and other side products of the glycerol oxidation reaction. The glycerose liquor may be combined without further isolation, purification or drying with a protein-containing fodder or fodder precursor to provide a rumen undegradable protein-containing ruminant feed product.

Abstract: A ruminally inert fat for a ruminant feed is made by applying reducing sugars to oilseed meats and heating to induce non-enzymatic browning. The process is controlled to ensure penetration of the reducing sugars into the interior of cracked oilseed meat prior to browning. The browning reaction renders the protein which surrounds the oil resistant to rumen bacterial degradation to thereby encapsulate the oil in a protective matrix.