Addition of oat hulls to an extruded rice-based diet for weaner pigs ameliorates the incidence of diarrhoea and reduces indices of protein fermentation in the gastrointestinal tract
Addition of oat hulls to an extruded rice-based diet for weaner pigs ameliorates the incidence of diarrhoea and reduces indices of protein fermentation in the gastrointestinal tract
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DOI：
10.1017/s0007114507868462
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发表时间：
2008-06-01
影响因子：
3.6
通讯作者：
Pluske, John R.
中科院分区：
文献类型：
--
作者：
Kim, Jae Cheol;Mullan, Bruce P.;Pluske, John R.
本试验旨在研究在膨化米或未加工小麦基础饲粮中添加燕麦壳对断奶仔猪断奶后腹泻（PWD）和大肠蛋白质发酵的影响。96头公仔猪（5-16 (SEM 0.08) kg）被分配给(i)挤压大米加动物蛋白（RAP）组；（ii）添加燕麦壳的RAP (20 g/kg)；（iii）小麦加动物蛋白（WAP）；（iv）添加燕麦壳的WAP （20 g/kg）。在断奶后第7天和第14天采集血液和粪便样本（约21日龄）。RAP组的PWD显著低于WAP组（P < 0.05）。饲粮RAP中添加燕麦壳可降低PWD的发生率（P < 0.05）。大米型饲粮的干物质、淀粉和能量全消化道消化率高于小麦型饲粮（P < 0.001）；然而，燕麦壳降低了干物质消化率和总能（P < 0.001）。饲喂RAP的猪血浆肌酐浓度较高（P < 0.01），且与断奶后累积β -溶血性大肠杆菌评分呈正相关（R-2 0928； P=0.015）。添加燕麦壳只降低了RAP饲猪的血浆尿素浓度（交互作用；P < 0.05）。猪粪总生物胺浓度低于WAP （P < 0.001）。添加燕麦壳有降低总生物胺浓度的趋势（P=0.103）。这些数据间接表明，在进入后肠的碳水化合物与蛋白质可能失衡的饮食情况下，燕麦壳等大部分不溶性膳食纤维来源可以减少PWD。
An experiment was conducted to determine whether adding oat hulls to weaner pig diets based on extruded rice or unprocessed wheat influenced post-weaning diarrhoea (PWD) and protein fermentation in the large intestine. Ninety-six male piglets (5-16 (SEM 0.08) kg) were allocated to (i) extruded rice plus animal proteins (RAP); (ii) RAP with added oat hulls (20 g/kg); (iii) wheat plus animal proteins (WAP); (iv) WAP with added oat hulls (20 g/kg). Blood and faecal samples were collected on days 7 and 14 after weaning at about age 21 d. Pigs fed RAP had]note PWD than pigs fed WAP (P < 0.05). Oat hull supplementation to diet RAP decreased the incidence of PWD (P < 0.05). The total-tract digestibility of DM, starch and energy was higher in rice-based diets than in wheat-based diets (P < 0.001); however, oat hulls decreased digestibility of DM and gross energy (P < 0.001). Pigs fed RAP had higher plasma creatinine concentrations (P < 0.01), which were positively correlated to cumulative beta-haemolytic Escherichia coli scores after weaning (R-2 0928; P=0.015). Addition of oat hulls decreased plasma urea concentrations only in pigs fed RAP (interaction; P < 0.05). Pigs fed RAP had lower faecal total biogenic amine concentrations than pigs fed WAP (P < 0.001). Oat hull supplementation tended to decrease total biogenic amine concentrations (P=0.103). These data indirectly suggest that a mostly insoluble dietary fibre source such as oat hulls can decrease PWD in dietary situations where there may be a misbalance of carbohydrate to protein entering the hindgut.