The Effect of Amputating the Blood Vessels and Nerves Distributed along the Cecum on the Excretion of Cecal Feces in Chickens

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  • 鶏の盲腸に分布する血管および神経の切断が盲腸糞の排泄におよぼす影響
  • ニワトリ ノ モウチョウ ニ ブンプスル ケッカン オヨビ シンケイ ノ セツ

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Abstract

Using 45-day-old Single Comb White Leghorn cockerels whose main vessels and/or nerves distributed along the ceca had been amputated, the pattern of excretion of cecal feces under the normal feeding condition was investigated. The results obtained are summarized as follows:<br>When main cecal vessels such as cadual- middle- and cranialileocecal arteries and veins together with nerves attached to the vessels or the nerves alone were amputated, cecal feces were excreted even at mid-night. The frequency of excretion, however, was reduced.<br>Amputating the cecal branches of cranial- and cadual-mesentric arteries and veins together with the nerves connected with the vessels completely stopped the excretion of cecal feces. This fact suggests that the cecal branches of mesentric vessels and/or the nerves connected with the vessels play a significant role in the excretion of cecal feces.

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