| abstract |
The present invention is to provide anβ-1,4-mannobiose-containing composition which can inhibitncolonization of salmonella in animal body and effectively excretensalmonella outside the body and the method for producing thereof,na feed additive containing the β-1,4-mannobiose-containingncomposition, and a feed blended with thenβ-1,4-mannobiose-containing composition. The presentninvention is intended to provide a method for producing thenβ-1,4-mannobiose-containing composition wherein a mannanndegrading enzyme is functioned to a mannan-containing naturalnmaterial for producing at least 10% by weight of β-1,4-mannobiosenbased on the mannan before the degradation, thenβ-1,4-mannobiose-containing composition prepared through thenfunction of a mannan degrading enzyme to a mannan-containingnnatural material, which contains at least 10% by weight ofnβ-1,4-mannobiose in terms of dry matter, a feed additivencontaining the β-1,4-mannobiose-containing composition, and anfeed blended with the β-1,4-mannobiose-containing composition. |