| 摘要 |
PURPOSE:To obtain the title additive protecting a biologically active substance from gastric juice in rumen and efficiently absorbing said substance in digestive organs in and after abomasum by coating core granules containing a biologically active substance and a protective substance with a protecting coating film consisting of a specific salt of fatty acid and fats and oils, etc. CONSTITUTION:Core granules containing both a biologically active substance (preferably methionine, lysine hydrochloride or vitamins) and a protective substance (preferably the same kind of fatty acid salt as that of protecting coating film) are coated with a protecting coating film consisting of (A) a salt of fatty acid (preferably calcium salt of mixed fatty acid having 30-50 deg.C melting point) of fatty acid salt which is insoluble in a neutral range and shows decomposing properties in an acidic range and (B) fats and oils and/or wax to give the objective additive. |
