牧草の反芻胃内消化と中性デタージェント繊維測定法に関する組織化学的検討

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タイトル別名
  • Histochemical Studies on the Digestion of Herbage in the Rumen and on the Neutral Detergent Fiber Determination
  • ボクソウ ノ ハンスウイナイ ショウカ ト チュウセイ デタージェント センイ

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説明

The distribution of the cell contents and the cell wall constituents in herbage tissues (alfalfa, orchard grass and tall fescue) and their digestion process in the rumen were histochemically studied as well as the effect of the treatment with the neutral detergent of VAN SOEST on those materials. 1) The cel wall of the tissues having cell contents (mesophyll, cortex etc.) was not lignified, and both the cell contents and the cell wall of these tissues were rapidly disintegrated in the rumen. Some of the tissues with poor cell contents were lignified (protophloem fiber, secondary xylem etc.), and were hardly disintegrated in the rumen. Of the other nonlignified tissues, pith was easily disintegrated, whereas epidermis and collenchyma were hardly disintegrated in the rumen. The phloem of the grasses, being enclosed with lignified tissues, was disintegrated slowly. These results suggest that the digestibility of herbages in the rumen should be influenced by the tissue constructions of plants, such as the lignification and the steric disposition of the tissues. 2) The neutral detergent treatment removed the bulk of the cell contents from the tissues of the legume, and, to a lesser extent, from those of the grasses. Most of the polysaccharides and lignin of the cell wall remained in the treated residues.

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