...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>British Poultry Science >Effects of mannanoligosaccharide in broiler chicken diets on growth performance, energy utilisation, nutrient digestibility and intestinal microflora.
【24h】

Effects of mannanoligosaccharide in broiler chicken diets on growth performance, energy utilisation, nutrient digestibility and intestinal microflora.

机译：肉鸡日粮中甘露寡糖对生长性能，能量利用，养分消化率和肠道菌群的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A study was undertaken to evaluate the effects of mannanoligosaccharide (MOS, Bio-MOS, Alltech Inc.) on the growth performance, energy utilisation, nutrient digestibility and intestinal microflora of birds given a sorghum-wheat based diet. Two MOS levels (1 and 2 g/kg) were included in the diet. Inclusion of MOS at both levels in the diet improved the apparent metabolisable energy (AME) values of the diet. However, these effects were not as pronounced as those of zinc bacitracin (ZnB) treatment. Dietary ZnB also significantly improved the net energy value of the diet. No significant differences between the different levels of MOS were noticed in the growth performance, AME and net energy values of the diet. Compared to the negative control, inclusion of 2 g/kg MOS tended to improve feed conversion efficiency (FCE) in the starter phase. Dietary MOS did not affect the apparent total tract digestibility of nutrients compared to the negative control. In contrast, ZnB significantly improved the protein digestibility and tended to increase the starch digestibility. The addition of MOS reduced the concentration of arabinose in the soluble non-starch polysaccharides (NSP) fraction in the excreta of birds; whereas, the concentrations of individual sugars in the insoluble NSP and free sugar fractions were increased by ZnB. A decrease in the populations of lactobacilli and coliforms in the ileal and caecal lumen was observed for MOS and ZnB treatments. Correspondingly, pH and microbial fermentation in the gut was altered. The addition of MOS tended to reduce the coliform load at the gut mucosa. Results from the current study suggest that MOS can improve the apparent energy utilisation of the diet and tend to improve FCE of birds in the first three posthatch weeks, which may be partly related to the modulatory effects of MOS on the gut microflora.
机译：进行了一项研究，以评估饲喂高粱小麦饮食的甘露寡糖（MOS，Bio-MOS，Alltech Inc.）对鸟的生长性能，能量利用，养分消化率和肠道菌群的影响。饮食中包括两个MOS水平（1和2 g / kg）。在饮食中同时添加MOS可以改善饮食的表观代谢能（AME）值。但是，这些作用并不像杆菌肽锌（ZnB）处理那样明显。饮食中的ZnB还可以显着改善饮食的净能量值。在饲料的生长性能，AME和净能量值上，不同水平的MOS之间没有显着差异。与阴性对照相比，在启动阶段加入2 g / kg MOS可以提高饲料转化效率（FCE）。与阴性对照相比，饮食中的MOS不会影响营养物质的表观总消化率。相反，ZnB显着提高了蛋白质的消化率，并倾向于增加淀粉的消化率。 MOS的添加降低了禽类粪便中可溶性非淀粉多糖（NSP）组分中阿拉伯糖的浓度; ZnB增加了不溶性NSP和游离糖组分中单个糖的浓度。对于MOS和ZnB处理，回肠和盲肠管腔中的乳酸杆菌和大肠菌群减少。相应地，肠道中的pH和微生物发酵也发生了变化。 MOS的添加倾向于减少肠粘膜上的大肠菌量。当前研究的结果表明，MOS可以提高饲料的表观能量利用率，并倾向于在孵化后的前三周提高禽的FCE，这可能与MOS对肠道菌群的调节作用有关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号