• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>General Meeting of The European Grassland Federation >Effect of season and species on the nutritive value of leaves of high stem trees
【24h】

Effect of season and species on the nutritive value of leaves of high stem trees

机译：季节和物种对高茎树叶叶营养价值的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to investigate their potential contribution to ruminant diets, the nutritive value of the leaves of five tree species was evaluated across the seasons. The sampling campaign was conducted on a French network of agroforestry paddocks implemented 25 years ago located in the north, the centre and the south of France. Tree leaves were collected on ash (Fraxinus excelsior), service tree [Sorbus domestica), sycamore tree {Acerpseudoplatanus), walnut (Juglans x regia x nigra) and wild cherry {Prunus avium). The nutritive value of the collected leaves was evaluated in June, August and October 2016 by analysing their protein and fibre contents and in vitro digestibility. Tree leaves composition exhibited large variations between species and betweenseasons. From spring to autumn, average DM varied from 288 to 450 g kg~(-1), fibre content from 383 to 338 gkg~(-1) and crude protein content from 160 to 110 gkg~(-1). On the contrary, in vitro digestibility remained quite constant across the seasons (from 67.7 to 66.9%). This result contrasts with what is observed on grasses and herbaceous legumes in which in vitro digestibility decreases in autumn.
机译：为了调查对反刍动物饮食的潜在贡献，在季节评估了五种树种叶片的营养价值。采样运动是在25年前在法国的北部，该中心和法国南部实施的法国农业剧围场网络上进行了法国网络。树叶被收集在灰烬（Fraxinus Excelsior），服务树[Sorbus domestica），梧桐树{acerpseudoplatanus），核桃（Juglans x Regia x Nigra）和野生樱桃{prunus avium）。通过分析其蛋白质和纤维含量和体外消化率，在2016年6月和2016年10月评估所收集的叶片的营养价值。树叶组成在物种和belfeenseasons之间表现出大的变化。从春天到秋季，平均dm从288到450g kg〜（-1），纤维含量为383至338gkg〜（-1），粗蛋白质含量为160-110gkg〜（-1）。相反，体外消化率在季节仍然相当持续（从67.7至66.9％）。这结果与在秋季的体外消化率降低的草地和草本豆类上观察到的造影作用对比。

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