商业挤压型犬粮中总淀粉和抗性淀粉对哈士奇胃排空的影响。

Effect of Total Starch and Resistant Starch in Commercial Extruded Dog Foods on Gastric Emptying in Siberian Huskies.

作者信息

Richards Taylor L, Rankovic Alexandra, Cant John P, Shoveller Anna K, Adolphe Jennifer L, Ramdath Dan, Verbrugghe Adronie

机构信息

Centre for Nutrition Modeling, Department of Animal Biosciences, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada.

Department of Clinical Studies, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada.

出版信息

Animals (Basel). 2021 Oct 10;11(10):2928. doi: 10.3390/ani11102928.

DOI:10.3390/ani11102928

PMID:34679949

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8532653/

Abstract

Gastric emptying rate (GER) may impact diabetes and obesity in humans and could provide a method to reduce canine weight gain. Starch, the most common source of carbohydrates (CHOs) in pet food, is classified as rapidly or slowly digestible, or resistant to digestion. This study investigated starch source effects in commercial extruded dog foods on the GER of 11 healthy adult Siberian Huskies. Test diets were classified as traditional, grain-free, whole-grain, and vegan. Dogs received each diet once, a glucose control twice, and acetaminophen (Ac) as a marker for GER in a randomized, partially replicated, 6 × 6 Latin square design. Pre- and post-prandial blood samples were collected at 16 timepoints from -15 to 480 min. Serum Ac concentrations were assessed via standard spectrophotometric assays and fitted with a mathematical model to estimate parameters of GER. Parameter values were subjected to ANOVA, with period and treatment as fixed effects and dog as a random effect. More total emptying ( 0.074) occurred at a faster rate ( 0.028) in dogs fed the grain-free diet, which contained the lowest total starch (34.03 ± 0.23%) and highest resistant starch (0.52 ± 0.007%). This research may benefit future diet formulations to reduce the prevalence of canine weight gain.

摘要

胃排空率（GER）可能会影响人类的糖尿病和肥胖症，并且可能提供一种减少犬类体重增加的方法。淀粉是宠物食品中最常见的碳水化合物（CHO）来源，可分为快速消化、缓慢消化或抗消化型。本研究调查了商业挤压狗粮中淀粉来源对11只健康成年哈士奇犬GER的影响。试验日粮分为传统型、无谷物型、全谷物型和纯素型。犬只按照随机、部分重复的6×6拉丁方设计，每种日粮各喂食一次，葡萄糖对照喂食两次，并给予对乙酰氨基酚（Ac）作为GER的标志物。在-15至480分钟的16个时间点采集餐前和餐后血样。通过标准分光光度法测定血清Ac浓度，并拟合数学模型以估计GER参数。对参数值进行方差分析，将时期和处理作为固定效应，犬只作为随机效应。喂食无谷物日粮的犬只总排空量更多（0.074），排空速度更快（0.028），该日粮的总淀粉含量最低（34.03±0.23%），抗性淀粉含量最高（0.52±0.007%）。本研究可能有助于未来的日粮配方设计，以降低犬类体重增加的发生率。