尿酸生成氨及其在公鸡盲肠中的吸收。

Ammonia production from uric acid and its absorption from the caecum of the cockerel.

Karasawa Y, Okamoto M, Kawai H

Laboratory of Animal Nutrition and Feed Science, Faculty of Agriculture, Shinshu University, Nagano-ken, Japan.

Br Poult Sci. 1988 Mar;29(1):119-24. doi: 10.1080/00071668808417033.

Abstract

Experiments were done in vitro and in situ in the caeca to measure ammonia production from uric acid and its absorption. 2. When uric acid was introduced into a caecal sac containing mixed caecal micro-organisms 0.77 disappeared in 1 h, with the concomitant appearance of ammonia. 3. Amounts of ammonia produced from added [15N] uric acid in the caeca in situ after 30 min and in caecal medium in vitro after 10 h, were 0.28 and 0.25 respectively of the added 15N. 4. About 0.92 of the ammonia introduced into a caecal sac disappeared from the lumen fluid in 30 min. 5. It is concluded that ammonia is produced from uric acid by caecal micro-organisms and rapidly absorbed.

摘要

在盲肠进行了体外和原位实验，以测量尿酸产生氨的情况及其吸收情况。2. 当将尿酸引入含有混合盲肠微生物的盲肠囊中时，0.77的尿酸在1小时内消失，同时出现了氨。3. 原位盲肠中添加的[15N]尿酸在30分钟后产生的氨量，以及体外盲肠培养基中10小时后产生的氨量，分别为添加的15N的0.28和0.25。4. 引入盲肠囊中的氨约0.92在30分钟内从肠腔液中消失。5. 得出的结论是，盲肠微生物可利用尿酸产生氨并迅速吸收。