Novel compositions for the coating of the food additives intended to ruminants and feed additives thus tablets

摘要

Composition for coating a stable biologically active substance in a medium whose pH is greater than or equal to 5 and which makes possible the release of the active substance in a medium whose pH is less than or equal to 3.5, consisting of a film-forming, non-water soluble slightly sensitive to pH variations (zein optionally combined binder which is with a non-water soluble film-forming polymer) and of a substance sensitive to pH variations (mineral fillers, basic polymers or copolymers), as well as the granules consisting of a core containing the biologically active substance coated by this composition.