Beloshapka Alison N, Duclos Laura M, Vester Boler Brittany M, Swanson Kelly S
Department of Animal Sciences, College of Agricultural, Consumer and Enviromental Sciences, University of Illinois, Urbana, IL 61801, USA.
Am J Vet Res. 2012 Jul;73(7):1016-23. doi: 10.2460/ajvr.73.7.1016.
To determine the effects of raw meat-based diets with and without inulin or yeast cell-wall (YCW) extract on macronutrient digestibility, blood cell counts, serum metabolite concentrations, and fecal fermentative end-product concentrations in healthy adult dogs.
6 healthy adult spayed female dogs (mean ± SD age, 5.5 ± 0.5 years; mean body weight, 8.5 ± 0.5 kg).
Dogs were fed each of the following 6 diets for 21 days, the order of which was randomly assigned in a Latin square design: beef control, beef and 1.4% inulin, beef and 1.4% YCW extract, chicken control, chicken and 1.4% inulin, and chicken and 1.4% YCW extract. Each diet trial consisted of a phase for diet adaptation (days 0 to 14) and a phase for measurement of urine and fecal output and content (days 15 to 20). On day 21, food was withheld for blood sample collection. Afterward, the next diet trial began immediately.
All dogs maintained desirable fecal quality characteristics and produced low fecal volume. All diets were highly digestible (protein digestibility > 88%; fat digestibility > 97%). Differences in fermentative end-product concentrations among all diets were minor, but a significant increase in fecal short-chain fatty acid concentrations was evident when dogs were fed beef-based diets with inulin and YCW extract. Fecal spermine concentrations were higher with diets containing inulin and YCW extract than with control diets. Blood cell counts and serum metabolite values were within reference limits after each trial. All diets resulted in maintenance of nitrogen balance.
Results suggested the raw meat-based diets evaluated were highly digestible in dogs. The increase in fecal short-chain fatty acid concentrations achieved when inulin and YCW extract were included may be beneficial to canine health.
确定含或不含菊粉或酵母细胞壁（YCW）提取物的生肉饮食对健康成年犬的常量营养素消化率、血细胞计数、血清代谢物浓度和粪便发酵终产物浓度的影响。
6只健康成年绝育雌性犬（平均±标准差年龄，5.5±0.5岁；平均体重，8.5±0.5千克）。
给犬喂食以下6种饮食中的每一种，为期21天，其顺序采用拉丁方设计随机分配：牛肉对照、牛肉加1.4%菊粉、牛肉加1.4% YCW提取物、鸡肉对照、鸡肉加1.4%菊粉和鸡肉加1.4% YCW提取物。每个饮食试验包括一个饮食适应阶段（第0至14天）和一个测量尿液和粪便产量及成分的阶段（第15至20天）。在第21天，禁食以采集血样。之后，立即开始下一个饮食试验。
所有犬均保持良好的粪便质量特征，粪便量少。所有饮食的消化率都很高（蛋白质消化率>88%；脂肪消化率>97%）。所有饮食之间发酵终产物浓度的差异较小，但当给犬喂食含菊粉和YCW提取物的牛肉饮食时，粪便短链脂肪酸浓度显著增加。含菊粉和YCW提取物的饮食组粪便精胺浓度高于对照组饮食。每次试验后血细胞计数和血清代谢物值均在参考范围内。所有饮食均能维持氮平衡。
结果表明，所评估的生肉饮食在犬中具有很高的消化率。包含菊粉和YCW提取物时粪便短链脂肪酸浓度的增加可能对犬类健康有益。
