Method of producing ruminant-edible feed products

A method of preparing a pH-adjusted ruminant-edible feed product, comprising the steps of:

• providing a continuous first stream of material comprising a distiller's grain product derived from a whole stillage byproduct of an ethanol plant after ethanol distillation, said product having variable constituents and densities;
• continuously or intermittently measuring a first parameter related to the instantaneous mass of said first material in said continuous first stream, said first parameter selected from the group consisting of the mass, density, and specific gravity of the material in said continuous first stream;
• and
• adding a pH-adjusting agent comprising base to said first stream in order to create a pH-adjusted feed product,
• said adding step including the step of using said continuously or intermittently measured first parameter to at least in part control the quantity of said agent added to said first stream, in order to generate a continuous substantially consistent output stream.