Abstract
Dietary therapy for human diabetic patients is mainly focusing on dietary carbohydrate level. In the present study, five healthy dogs were fed different sources of carbohydrate diets to investigate their effect on postprandial glucose metabolism parameter. We used three commercial diets which include three different major carbohydrate sources（rice, corn and wheat）. As a result, no significant difference was observed in postprandial blood concentrations between three diets. Furthermore, from the results of insulin secretion, a tendency for digestion and absorption speeds were tend to increase wheat, corn, in the order of rice in three diets. In addition, GIP secretion is stimulated by the amount of dietary fat, rather than carbohydrate sources. No significant differences were observed in postprandial GLP-1 concentrations between three diets. In conclusion, different sources of dietary carbohydrate did not influence for glucose and GLP-1 concentrations in healthy dogs, however, they might relate to insulin secretion. Lastly dietary fat contents might relate to GIP secretion.
