Enzyme additives for ruminant feeds
    2.
    发明授权
    Enzyme additives for ruminant feeds 失效
    反刍动物饲料用酶添加剂

    公开(公告)号:US5720971A

    公开(公告)日:1998-02-24

    申请号:US497913

    申请日:1995-07-05

    摘要: Fibrolytic enzyme supplements for increasing the digestibility of legume forages and grain feeds for ruminants, a method of treating legume forages and grain feeds with fibrolytic enzymes, and feed compositions consisting of feed materials treated with a mixture of fibrolytic enzymes are provided. The enzyme supplements do not pre-digest the feed material but assist in the colonization of feed particles in the rumen by ruminal microbes. The fibrolytic enzyme supplements consist of mixtures of cellulase and xylanase in certain preferred ratios and levels which are dependent on the feed material to be treated. The cellulase and xylanase are dissolved in a buffer solution and sprayed onto dry legume forages or grain feeds. The feed material is then incubated for at least three hours to allow the enzymes to be absorbed into and adhere to the feed material. The resulting feed compositions remain stable for at least one year against predigestion. When cellulase and xylanase are applied to legume forages and grain feeds in certain ratios, levels and in accordance with the methods of the present invention, synergistic effects between the enzymes occur, providing large improvements in digestibility of feed materials at low enzyme levels.

    摘要翻译: 提供用于增加反刍动物的豆类饲料和谷物饲料的消化率的纤维素酶补充剂,用纤维蛋白酶处理豆类饲料和谷物饲料的方法,以及由用纤维素酶混合物处理的饲料原料组成的饲料组合物。 酶补充剂不预消化饲料,但有助于瘤胃微生物对瘤胃饲料颗粒的定植。 纤维素酶补充剂由纤维素酶和木聚糖酶的混合物组成,其依赖于待处理饲料的某些优选比例和水平。 将纤维素酶和木聚糖酶溶解在缓冲溶液中并喷洒到干燥的豆类饲料或谷物饲料上。 然后将饲料料培养至少3小时,以使酶被吸收并粘附到饲料上。 所得饲料组合物在预消化过程中保持稳定至少一年。 当纤维素酶和木聚糖酶以一定的比例,水平应用于豆类饲料和谷物进料时,根据本发明的方法,发生酶之间的协同效应,在低酶水平下提供饲料物质的消化率的大的改进。