Ajinomoto Co., Ltd.

Mitsubishi Kasei Corporation

Mitsubishi Chemical Industries Limited

Takahumi Tosa

Masao Miyake

Takaaki Kobayashi

Hiroyoshi Okada

Takaharu Itagaki

Hiroyuki Satou

Hiroyuki Sato

Kenji Mori

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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Kawasaki, Japan

Takahumi Tosa