Effect of dietary therapy on the postprandial serum lipid concentrations in dogs

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  • 療法食の給与が健常犬の食後の血中脂質濃度に及ぼす影響
  • リョウホウショク ノ キュウヨ ガ ケンジョウケン ノ ショクゴ ノ ケッチュウ シシツ ノウド ニ オヨボス エイキョウ

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Serum triglyceride (TG) and Total Cholesterol (T-Cho) concentrations have been known to elevate postprandially. The objective of this study was to evaluate the effect of dietary therapy on the postprandial change of serum TG and T-Cho concentrations in dogs. Healthy 6 Beagles were randomly divided into 3 groups, and fed with high-energy diet, low-fat diet, or high-fiber diet for 2 weeks under 3×3 Latin Square protocol. Baseline and postprandial (2, 4, 6, 8, 10, and 12 hours after feeding) serum TG and T-Cho concentrations were measured and compared among the 3 dietary therapies. Only high-energy diet induced significant elevation of serum TG concentration postprandially. Serum TG concentrations 2–10 hours after feeding with high-energy diet were significantly higher than those with other 2 diets. Serum TG concentration was returned within reference range 12 hours after feeding with each diet. Serum T-Cho concentration did not show postprandial elevation. High-energy diet provided with a tendency to elevate the baseline serum T-Cho concentration when compared with other 2 diets, but there was no statistically significant difference. Although the baseline concentrations of TG and T-Cho was equivalent, high-energy diet could induce potential hypertriglyceridemia due to the dairy postprandial elevation of serum TG concentration. The effect of dietary therapy on the dogs with hyperlipidemia needs to be investigated.

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