鶏の内因性盲腸糞の排泄について〔鶏の盲腸機能に関する研究-23-〕

概要

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In order to investigate the amount of cecal feces excreted as well as the frequency of its secretion, the present experiment was carried out using Single Comb White Leghorn cockerels. Their ceca were separeted from the intestinal canal to obtain the endogenously secreted cecal feces. They were them fed a conventional diet added with fish meal which contributed 35.2% of the total crude protein content. 1. Techniques for the separation of ceca from the intestinal canal were developed. 2. The intestinal feces were collected through the artificial anus and the cecal feces, which were endogenously secreted, were collected through the cloaca. The frequency of cecal feces excretion in the operated chickens was almost the same as that in the control, being about 3 times a day. The amount of cecal feces in the operated chickens was 73.6% on fresh matter basis and 40% on dry matter basis of that in the control. 3. The endogenous cecal feces were collected through the artificial anus, and the intestinal feces through the cloaca. The amount of the endogenous cecal feces in the operated chickens was 40% on dry matter basis of that in the control. The amounts of total and non-protein nitrogen in the endogenous cecal feces were 1.21 and 1.24 times, respectively, as much as those in the control chickens. It was assumed that about 50% of nitrogen in the cecal feces originated from the secreted nitrogen into the ceca.
公益社団法人日本畜産学会の論文