The productivity and qualiti of Arrhenatherum elatius grasslands from the Orhei National Park, Republic of Moldova [Articol]

Abstract

This article presents new findings on the productivity of grasslands in Orhei National Park (Republic of Moldova). The research was conducted during 2021-2022 on a grassland dominated by Arrhenatherum elatius, located in the village of Neculaeuca, Orhei district. Hay yield ranged from 4.13 to 5.63 t/ha. The dry matter of the hay contained 107-142 g/kg CP, 343-373 g/kg CF, 93-106 g/kg ash, 373-395 g/kg ADF, 595-648 g/kg NDF, 43-44 g/kg ADL, 57-85 g/kg TSS, 330-351 g/kg Cel, and 22 g/kg HC. The nutritive and energy values were as follows: 58.1-61.9% DMD, RFV = 83-97, 11.53-12.21 MJ/kg DE, 9.47-10.03 MJ/kg ME, and 5.49-5.74 MJ/kg NEl. In addition to its fodder value, the hay substrate demonstrated an optimal lignin and hemicellulose content for anaerobic digestion, with an estimated biochemical methane potential ranging from 313 to 362 l/kg VS.