Ajinomoto Co., Ltd.

Mitsubishi Kasei Corporation

Mitsubishi Chemical Industries Limited

Hiroyoshi Okada

Masao Miyake

Takaaki Kobayashi

Takahumi Tosa

Takaharu Itagaki

Hiroyuki Satou

Takeshi Nagai

Hiroyuki Sato

Kenji Mori

Hiroyuki Satoh

A feed additive granule for ruminants comprising a granulated physiologically active substance as the core, a first coating layer placed on the surface of said core, said first coating layer containing a high molecular substance which dissolves or swells in water in an acidic pH region of not greater than 5.5 and is stable in a pH region of 5.6 to 8.0, and a second coating layer placed on said first coating layer, said second coating layer being of a substance which is stable in an acidic pH region of not greater than 5.5, dissolves or swells in water in a pH region of 5.6 to 8.0 and is acceptable to ruminants, and some modifications thereof, as well as feed for ruminants comprising such a novel feed additive.

Feed additives for ruminants

A feed additive for ruminants, which comprises cores containing an acid salt of a basic amino acid, and a first coating layer and a second coating layer coated sequentially on the surface of each core, wherein said first coating layer contains at least one first coating agent selected from the group consisting of a neutral or weakly acidic organic substance, a substantially neutral fine powder of inorganic substance, a non-ionic hydrophilic polymer substance and an anionic hydrophilic polymer substance and being physiologically acceptable to the ruminants, and the second coating layer contains as a second coating agent a polymer soluble or swellable in water in an acidic region of a pH of at most 5.5.

Feed additive for ruminants

A feed additive for ruminants, which comprises core containing a carbamate of a basic amino acid and coated with a polymer coating agent soluble or swellable in water in an acidic region of a pH of at most 5.

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Yokohama, Japan

Hiroyoshi Okada