摩尔多瓦共和国种植的罗马尼亚羊茅品种的绿色质量和干草的产量

V. Țîței, V. Blaj, T. Marușca
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引用次数: 1

摘要

草被认为是低成本动物饲料中最重要的来源之一,也是生产可再生能源的基质。我们研究了罗马尼亚高羊茅品种“Adela”、“Brio”、“m gurele 5”的新鲜收获生物量和干草的质量,这些品种由罗马尼亚bra诺夫草原研究与发展研究所创建,并在摩尔多瓦共和国基希纳乌“Alexandru Ciubotaru”国家植物园(研究所)的试验区种植。评估样品采集于植株生长2年期间,当时植株被剪了1次。分析了干物质(DM)、粗蛋白质(CP)、粗灰分(CA)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、酸性洗涤木质素(ADL)、纤维素(Cel)、半纤维素(HC)、可消化干物质(DDM)、有机物消化率(OMD)、相对饲料价值(RFV)、代谢能(ME)、哺乳净能(NEl)、生物甲烷生产潜力(BMP)的含量。结果表明,高羊茅品种绿色质量生产力为30.83 ~ 36.96 t/ha,干物质含量为114 ~ 136 g/kg CP、74 ~ 89 g/kg CA、582 ~ 593 g/kg NDF、392 ~ 396 g/kg ADF、34 ~ 41 g/kg ADL、322329 g/kg Cel、226 ~ 229 g/kg HC、60.363.8% DDM和57.2 ~ 62.2% OMD、9.12 ~ 9.62 MJ/kg ME和5.69 ~ 5.86 MJ/kg NEl;干草干物质含量为99 ~ 117 g/kg CP、80 ~ 86 g/kg CA、582 ~ 593 g/kg NDF、356 ~ 366 g/kg ADF、34 ~ 37 g/kg ADL、351 ~ 356 g/kg Cel、236 ~ 260 g/kg HC、55.8 ~ 57.2% DDM和51.4 ~ 53.3% OMD、9.51 ~ 9.59 MJ/kg ME和5.53 ~ 5.59 MJ/kg NEl,是反刍动物粗饲料的最佳品质。以新鲜高羊茅为厌氧消化基质,生物甲烷产量可达349 ~ 354 L/kg。所研究的高羊茅品种可以在摩尔多瓦共和国用于恢复退化的永久草地,作为创建临时草地的混合草的一个组成部分,可以种植在葡萄园和果园的行之间。此外,获得的生物质可以用作动物饲料或作为生物甲烷生产工厂的底物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
THE PRODUCTIVITY AND THE QUALITY OF GREEN MASS AND HAY FROM ROMANIAN CULTIVARS OF FESTUCA ARUNDINACEA, GROWN IN THE REPUBLIC OF MOLDOVA
Grasses are considered as one of the most important sources in low-cost feed for for animals, but also a substrate for the production of renewable energy. We studied the quality of the freshly harvested biomass and hay of Romanian cultivars of tall fescue Festuca arundinacea: 'Adela', 'Brio', 'Măgurele 5', created at the Research and Development Institute for Grasslands, Braşov, Romania and cultivated in the experimental plot of the National Botanical Garden (Institute) “Alexandru Ciubotaru”, Chisinau, Republic of Moldova. The samples for assessment were taken in the 2 year of growth, when the plants were cut for the 1 time. The amount of dry matter (DM), crude protein (CP), crude ash (CA), neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), cellulose (Cel), hemicellulose (HC), digestible dry matter (DDM), organic matter digestibility (OMD), relative feed value (RFV), the metabolizable energy (ME), the net energy for lactation (NEl), biomethane production potential (BMP) were analyzed. It has been determined that the green mass productivity of the tall fescue cultivars achieved 30.83-36.96 t/ha, the dry matter contained 114-136 g/kg CP, 74-89 g/kg CA, 582-593 g/kg NDF, 392-396 g/kg ADF, 34-41 g/kg ADL, 322329 g/kg Cel, 226-229 g/kg HC, 60.363.8% DDM and 57.2-62.2% OMD, 9.12-9.62 MJ/kg ME and 5.69-5.86 MJ/kg NEl; the hay dry matter contained 99-117 g/kg CP, 80-86 g/kg CA, 582-593 g/kg NDF, 356-366 g/kg ADF, 34-37 g/kg ADL, 351-356 g/kg Cel, 236-260 g/kg HC, 55.8-57.2% DDM and 51.4-53.3% OMD, 9.51-9.59 MJ/kg ME and 5.53-5.59 MJ/kg NEl, this fact indicates a optimal quality of the roughage feed for ruminants. The substrate for the anaerobic digestion, consisting of fresh mass of tall fescue, had a biomethane production potential of 349-354 L/kg of organic matter. The studied cultivars of tall fescue could be used in the Republic of Moldova for the restoration of degraded permanent grasslands, as a component of the mix of grasses for the creation of temporary grasslands and can be planted between rows in vineyards and orchards. Besides, the obtained biomass can be used as feed for animals or as substrate at biomethane production plants.
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