摘要
Yeast and distillers’ grains from ethanol products have been included in pet food for many years. However, their combination has not been evaluated in pet food. Grain distillers dried yeast (GDDY) is a combination of fermented grains which is rich in yeast. The objectives of this study were to determine the effects of increasing levels of GDDY on apparent total tract digestibility (ATTD) and stool quality in adult dogs. Four extruded diets were fed to twelve adult Beagle dogs in a replicated 4 x 4 Latin Square design. The control diet contained 15% soybean meal (15S) and GDDY was exchanged for soybean meal at either 5%, 10%, or 15% (5G, 10G, 15G). Dogs were fed each dietary treatment for 9-d adaption followed by 5-d total fecal collection. Feces were scored on a 1–5 scale, with 1 representing liquid diarrhea. Titanium dioxide was added to all diets (0.4%) as a marker to estimate digestibility. Data were analyzed using a mixed model in SAS (version 9.4, SAS Institute, Inc., Cary, NC) with treatment as a fixed effect and dog and period as random effects. No differences (P > 0.05) were observed in wet fecal output or fecal pH (average; 112.74g/d and 5.77). Fecal DM and defecations per day were greater (P < 0.05) at elevated levels of GDDY. Stool scores were higher (P < 0.05) when dogs consumed diets containing GDDY versus 15S (average; 3.85 vs 3.67). Organic matter ATTD was the greatest (P < 0.05) for dogs fed 15S compared to GDDY treatments (average; 87.64% vs 86.67%). Dogs fed 10G had the lowest (P < 0.05) ATTD for crude protein compared to all others (average; 87.92% vs 88.78%). These results suggest that levels of GDDY between 5 and 15% are comparable to soybean meal when fed to adult dogs.
摘要译文
多年来，宠物食品中包括乙醇产品中的酵母和酿酒厂的谷物。但是，尚未在宠物食品中评估它们的组合。谷物蒸馏厂干酵母（GDDY）是富含酵母的发酵谷物的组合。这项研究的目标是确定GDDY水平升高对成年犬的明显总区域消化率（ATTD）和粪便质量的影响。在复制的4 x 4拉丁正方形设计中，将四种挤出的饮食喂给十二只成年小猎犬。对照饮食中含有15％的大豆餐（15s），GDDY以5％，10％或15％（5G，10G，15G）换成大豆餐。为每种饮食治疗喂食9-D适应，然后进行5-D总粪便收集。粪便以1-5的比例评分，其中1个代表液体腹泻。将二氧化钛添加到所有饮食（0.4％）中，作为估计消化率的标志物。使用SAS中的混合模型（版本9.4，SAS Institute，Inc。，Cary，NC）中的混合模型分析了数据，并作为固定效果和狗和周期作为随机效应。在湿粪输出或粪便pH（平均; 112.74g/d和5.77）中未观察到差异（p> 0.05）。在GDDY水平升高时，每天粪便DM和排便更大（p <0.05）。当狗消耗含有GDDY的饮食与15s（平均3.85 vs 3.67）时，粪便得分较高（P <0.05）。与GDDY治疗相比，有机物ATTD是最大的（p <0.05）（平均; 87.64％vs 86.67％）。与所有其他狗相比，喂食10g的狗的原油蛋白质最低（P <0.05）（平均87.92％，而88.78％）。这些结果表明，喂给成年犬时的gddy水平与5％至15％之间的水平可与大豆餐相媲美。
Logan Kilburn; Melissa L Jolly-Breithaupt; Derek Balk; Charles G Aldrich. 108 Evaluation of Graded Levels of Grain Distillers Dried Yeast (GDDY) on Apparent Nutrient Digestibility and Stool Quality in Healthy Adult Dogs[J]. Journal of Animal Science, 2021,99(Sup3)