The conserve or improve floristically diverse grassland areas, there is a need for some agricultural management to avois scrub vegetation. Description of the forage quality of the most common species in these swards will make it easier to make appropriate use of the forage produced. The objective was to determine forage quality by analysing for in vitro organic matter digestibility (IVOMD) and neutral detergent fibres (NDF) of individual species commonly occurring in low lying semi-natural grasslands in Denmark. Eight species of grasses, eight herb species and one species of rush were collected in June and July under grazing and cutting. However, a large variation between species was found. The IVOMD varied from 416 to 780 g kg-1 organic matter (OM) and NDF from 287 to 714 g kg-1 dry matter (DM). The herbs maintained a relatively high IVOMD in mid-summer cuts, contrary to the grasses, where a later cut resulted in a lower IVOMD. Two species often occurring in substantial amounts in such swards, Deschampsia caespitose and Juncus effuses, had low IVOMD and high NDF, and it was concluded that management strategies that reduce the occurrence of these species will increase the forage quality.
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机译：为了保护或改善植物区系多样化的草原地区，需要一些农业管理来使阿沃瓦草丛灌木丛化。描述这些草中最常见物种的草料质量将使更容易适当地利用所产生的草料。目的是通过分析丹麦低洼半天然草原中常见的单个物种的体外有机物消化率（IVOMD）和中性洗涤剂纤维（NDF）来确定草料质量。 6月和7月在放牧和切割下收集了8种草，8种草药和1种草皮。但是，发现物种之间的差异很大。 IVOMD的有机物含量从416到780 g kg-1不等（OM），NDF的干物质从287到714 g kg-1不等（DM）。与草相反，草在仲夏割期维持相对较高的IVOMD，而在草期后期则导致较低的IVOMD。经常在这种草皮中大量出现的两个物种，即去壳甘蔗（Caschpitose caespitose）和杜鹃（Juncus effuses），其IVOMD低而NDF高，因此得出结论，减少这些物种发生的管理策略将提高草料质量。
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