Effect of Diet Amount and Feeding Frequency on Gastrointestinal Motility in the Dog

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  • 犬の胃および小腸運動に及ぼす給飼量と回数の影響
  • イヌ ノ イ オヨビ ショウチョウ ウンドウ ニ オヨボス キュウジリョウ ト

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Abstract

In dogs fed a standard amount diet once daily at a fixed time, the mean duration of postfeeding contractions were 16.6, 13.3 and 15.9 hours in the antrum/duodenum, jejunum and ileum, respectively. During the interfeeding migrating contractions (IMC) repeated, followed by phase Ill until the next feeding and the mean intervals of IMC ranged from 87.3 to 98.1 min. With increaced amount (120-140%) of diet, the duration of postfeeding contractions was elongated, while the IMC was shortend. There was a significant correlation (P < 0.01) between the feeding amount and duration of postfeeding contractions. In cases fed twice a day equally divided amounts of the diet, the mean duration of postfeeding contractions was elongated, and the IMC phase was shortened with decrease in frequency. The freely fed dogs showed no IMC phase. From these results, feeding the standard amount of diet once a day should be recommended for dogs to have a balanced pattern of post-and inter-feeding gastrointestinal movement.

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