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Provedor de dados:  OAK
País:  Japan
Título:  Position and rate of intestinal fermentation in adult ostrich evaluated by volatile fatty acid
Autores:  Hongo, Akio
Ishii, Yukiko
Suzuta, Hidetaka
Enkhee, Devee
Toukura, Yuji
Hanada, Masaaki
Hidaka, Satoshi
Miyoshi, Syunzou
本江, 昭夫
石井, 友紀子
鈴田, 英隆
エンヒェー, デヴィ
藤倉, 雄司
花田, 正明
日高, 智
三好, 俊三
Data:  2006-10
Ano:  2006
Palavras-chave:  Adult ostrich
Volatile fatty acid
Resumo:  The study was conducted in Obihiro, Japan to examine the position and rate of intestinal fermentation in three adult ostriches (Struthio camelus) with mean liveweight of 103±4.7 kg. The ostriches were fed fresh leaves of orchardgrass (Dactylis glomerata). At twenty five hours before the slaughter, they ingested 100 g fresh leaves mixed with 20 g oblong strips (2mm wide and 30 mm long) of a filter paper, in which chromium oxide was absorbed at a rate of 40 %. After the slaughter, small intestine, cecum and large intestine were cut into 3, 2 and 7 pieces, respectively, with the same length in each organ. Crude ash content in digesta samples was the highest in muscular stomach (90.1±1.17 %), compared with 27-51 % in other organs of glandular stomach, small intestine and cecum. The percentages of both dry matter and organic matter were significantly higher in colon. The peak of chromium content was observed at the final position of large intestine, suggesting passage rate of grass leaves through all digestive organs being about 24 hours. A small peak of total content of volatile fatty acids was observed at middle part of small intestine, suggesting the commencement of volatile fatty acid forming in small intestine. The peaks of both total content of volatile fatty acids and acetic acid content were observed in colon, being 24.5±7.25 % and 15.5±5.75 %, respectively. Acetic acid content rapidly decreased at the following sites of large intestine, suggesting active absorption of acetic acid in colon. 植物資源の利用を改善するために、平均生体重が103 ±4.7kgの3羽のダチョウ成鳥(Struthio camelus)にお ける腸管内醗酵の場所と速度を調査した。ダチョウにオ ーチャードグラス(Dactylis glomerata)の葉身を給与 し、屠殺の25時間前に100gの葉身と20gの長方形のロ紙 (幅2mm、長さ30mm)を採食させた。ロ紙には40%の酸 化クロム水溶液を吸着させておいた。屠殺後、小腸、盲 腸、大腸を同じ長さになるようにそれぞれ3、2、7個に 分割した。 消化管内容物中の粗灰分の割合は筋胃で最も高く (90.1±1.17 %)、腺胃、小腸、盲腸では27-51%であっ た。乾物と有機物の割合は盲腸で最も高かった。クロム 濃度のピークは大腸の最後の部分で認められ、ダチョウ 成鳥のすべての消化管を通過する時間は約24 時間と推 察された。揮発性脂肪酸の総量の小さなピークが小腸の 中間部で認められ、ここですでに醗酵が開始されている ことを示唆していた。揮発性脂肪酸の総量と酢酸濃度の 両方のピークが結腸で認められ、平均値はそれぞれ24.5 ±7.25 mmol/100ml と15.5±5.75 mmol/100ml であっ た。酢酸濃度は大腸を下行するにつれて急速に低下しており、酢酸は結腸において活発に吸収されていることが 示唆された。
Idioma:  Inglês
Identificador:  帯大研報
Editor:  帯広畜産大学
Formato:  application/pdf
Direitos:  帯広畜産大学

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