HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
獣医学研究科  >
Japanese Journal of Veterinary Research >
Volume 8, Number 1-4  >

DIGESTIBILITY OF PHYTIN PHOSPHORUS AND INTESTINAL PHYTASE IN DAIRY COWS AND SHEEP

フルテキスト
KJ00002373269.pdf715.86 kBPDF見る/開く
この文献には次のDOIがあります:http://doi.org/10.14943/jjvr.8.1-4.161

タイトル: DIGESTIBILITY OF PHYTIN PHOSPHORUS AND INTESTINAL PHYTASE IN DAIRY COWS AND SHEEP
著者: OTA, Yoshio 著作を一覧する
発行日: 1960年
出版者: The Graduate School of Veterinary Medicine
誌名: Japanese Journal of Veterinary Research
巻: 8
号: 1-4
開始ページ: 161
終了ページ: 172
抄録: The digestive mechanisms of phytin phosphorus have been studied in dairy cows and sheep. The summary of the results is as follows : 1. Phytin phosphorus of cereal bran has been digested completely in the gastrointestine of sheep. The digestibility is not altered in the heat-treated cereal bran whose own enzyme is inactivated. 2. High potential activity of a phytase was found in the content of the small intestine, but in the contents of the rumen, abomasum, cecum and colon the enzyme exerted only a feeble action, if any, on the substrate. 3. The optimum pH of the enzyme is about 6.3,optimum temperature 55℃. The enzyme is activated by magnesium ion at an optimum concentration of 0.001M, inactivated by sodium cyanide, mercuric chloride, and calcium chloride, and not effected by potassium oxalate and sodium flouride at a concentration of 0.01M. 4. The pH values of the contents of the upper small intestine in dairy cow and sheep range 6.5∿7.1. These values are most near to the optimum pH of the intestinal phytase among the contents of other parts of the gastrointestine examined.
資料タイプ: bulletin
URI: http://hdl.handle.net/2115/4677
出現コレクション:Volume 8, Number 1-4

提供者: 獣医学部図書室

 

本サイトに関するご意見・お問い合わせは repo at lib.hokudai.ac.jp へお願いします。 - 北海道大学