@article{oai:kpu.repo.nii.ac.jp:00004880,
 author = {国松, 豊 and Kunimatsu, Yutaka and 小松, 明徳 and Komatsu, Akinori and 小林, 恒夫 and Kobayashi, Nobuo and 有本, 可夫 and Arimoto, Yoshio},
 journal = {京都府立大學學術報告. 農學, The scientific reports of Kyoto Prefectural University. Agriculture},
 month = {Oct},
 note = {鶏に対する簡単な消化率測定法としてEkmanらによる糞中窒素定量法と糞中有機物量の算出に片山の係数を応用して無手術鶏の糞尿混合排泄物から直接消化率を求め, 現在一般化されている人工肛門法と比較してその実用性を検討した。試験はロック・ホーン大びな雄の人工肛門設着鶏と無手術の正常鶏各3羽づつを用い, 低繊維含量の飼料で2回, 高繊維含量の飼料で1回, 計3回行なった。いずれの試験においても粗繊維以外の各成分の消化率には両法の間に差異はなく, 粗繊維の消化率のみ常に人工肛門法の方が高い値を示した。しかし粗繊維に関しては正常鶏で得られた消化率が正しい値を示すはずであるから, 定量操作が簡単なEkmanらの糞中窒素定量法と片山の係数を応用する消化率測定法は, 対象とする鶏の年令を問わずしかも随時に消化率を求めることができる実用性の高い簡便な方法であると考える。, A method of chemical separation (chemical method) as a convenient procedure of determining the digestibility of the fowl was compared with the artificial anus technique. Six S. C. White Leghorn ♂×Barred Plymouth Rock ♀ cockerels, averaging 2.1kg, groups of three cockerels with the artificial anus and three normal cockerels with the intact anus were used in each of three digestion trials. In trial 1 and 2 digestibility were compared with cockerels fed low-fiber ration (3.3% and 4.2%) and in trial 3 with cockerels fed high-fiber ration containing the 13.7% crude fiber. In the chemical method, of the components in the mixed excreta crude protein content was determined by using the direct method of Ekman et al (1949), and nitrogenfree extract content was calculated from the figure of urinary organic matter which obtained by use of the Katayama's factor 3.26 (1918). In three trials, there were no differences between the methods in their digestibility of crude protein, crude fat (ether extract) and nitrogen-free extract. However, the digestibility of crude fiber was higher in figure determined using the artificial anus technique than that obtained by the chemical method. In regard to the digestibility of crude fiber, figure which was obtained from the normal fowl with intact anus should be considered as a normal value. Besides the above facts, from a consideration of the chemical method are relatively simple in procedure and are available at any time regardless of age or sex, it seems reasonable to assume that this method has a value for practical usage.},
 pages = {64--70},
 title = {鶏の消化率測定法としての人工肛門法と化学的分離法との比較(農学部門)},
 volume = {23},
 year = {1971},
 yomi = {クニマツ, ユタカ and コマツ, アキノリ and コバヤシ, ノブオ and アリモト, ヨシオ}
}