Urrego Maria Isabel Gonzalez, Matheus Laura Fantucci de O, de Melo Santos Karine, Ernandes Mariane Ceschin, Monti Mariana, de Souza Danilo Ferreira, Balieiro Júlio Cesar de Carvalho, Araújo Lúcio Francelino, Pontieri Cristiana F Ferreira, Brunetto Márcio Antonio
Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga, São Paulo, Brazil.
School of Veterinary Medicine and Animal Science (FMVZ), University of São Paulo (USP), Pirassununga, São Paulo, Brazil.
J Nutr Sci. 2017 Aug 29;6:e43. doi: 10.1017/jns.2017.46. eCollection 2017.
Benefits to microbial fermentation in the colon and as a consequence less flatulence can be promoted for the health of adult dogs according to the amount and protein source. The present study evaluated different protein sources in dry food for brachycephalic dogs regarding microbial fermentation and nutrient digestibility. Four dry dog foods with similar protein content were formulated for adult maintenance: poultry meal (PM) diet; wheat gluten (WG) diet; PM + WG diet; and PM + WG + hydrolysed protein (HP) diet. Eight French bulldog adult dogs were arranged in a 4 × 4 Latin square design during the 28 d trial. Fresh faeces were collected for assessment of nutrient digestibility and analyses of faecal pH, SCFA, biogenic amines, ammonia and lactate. Means were compared by the PROC MIXED procedure of SAS and by Tukey's test, considering ≤ 0·05. The animals fed the WG and PM + WG diets showed higher digestibility for DM ( < 0·05), organic matter ( < 0·05), crude protein ( < 0·001) and lower faeces production ( < 0·02) than the PM and PM + WG + HP diets. Feeding diet PM + WG + HP resulted in lower faecal score and pH ( < 0·05) compared with other diets. Concentrations of fermentation metabolites were not statistically significantly different among diets. In conclusion, WG alone or in combination with PM improved protein and DM digestibility. Fermentation products were not affected by protein source.
根据摄入量和蛋白质来源，结肠中的微生物发酵对成年犬的健康有益，且由此产生的肠胃胀气较少。本研究评估了短头犬干粮中不同蛋白质来源对微生物发酵和营养物质消化率的影响。为成年维持期犬只配制了四种蛋白质含量相似的干粮：禽肉粉（PM）日粮；小麦麸质（WG）日粮；PM + WG日粮；以及PM + WG + 水解蛋白（HP）日粮。在为期28天的试验中，八只成年法国斗牛犬采用4×4拉丁方设计进行安排。收集新鲜粪便以评估营养物质消化率，并分析粪便pH值、短链脂肪酸、生物胺、氨和乳酸。通过SAS的PROC MIXED程序和Tukey检验比较均值，显著性水平设定为≤0·05。与PM和PM + WG + HP日粮相比，喂食WG和PM + WG日粮的动物对干物质（<0·05）、有机物（<0·05）、粗蛋白（<0·001）的消化率更高，粪便产量更低（<0·02）。与其他日粮相比，喂食PM + WG + HP日粮的粪便评分和pH值更低（<0·05）。日粮之间发酵代谢产物的浓度在统计学上没有显著差异。总之，单独使用WG或与PM组合使用均可提高蛋白质和干物质的消化率。发酵产物不受蛋白质来源的影响。
