盲腸切除がトリトンハムスターの食糞行動に及ぼす影響

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タイトル別名
  • Effects of cecal resection on coprophagy in the rat-like hamster <i>Tscherskia triton</i> De Winton
  • モウチョウ セツジョ ガ トリトンハムスター ノ ショク フン コウドウ ニ オヨボス エイキョウ

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説明

Many small cecal fermenters are well known to select and reingest the feces with high nutritional values that are produced in the cecum to enhance overall nutritional efficiency. In the previous study, using the rat-like hamster Tscherskia triton De Winton – a pregastic and cecal fermenter – we demonstrated that the nutritional benefit by the coprophagy cold not be obtained in the absence of a cecum, indicating the strong relationship between coprophagy and cecal function, as in other animals showing cecal fermentation. However, it has not been determined whether the loss of nutritional benefit might be caused by reduced coprophagy in addition to the decreased nutritive value of the reingested feces. In this study, we observed behavior continuously for 48 h in the hamsters, which had been subjected to cecal resection or a sham operation. Coprophagy was found to occur mainly during periods of light sham-operated control hamsters reingested their feces frequently. The finding suggests that the loss of coprophagy following cecal resection might contribute to the decline in the nutritional benefit of coprophagy.

収録刊行物

  • 環動昆

    環動昆 24 (2), 51-57, 2013

    日本環境動物昆虫学会

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