Browsing by Author "Tod, Monica"

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BIOLOGICAL FEATURES OF ISATIS TINCTORIA AND THE QUALITY OF ENSILED BIOMASS UNDER THE CONDITIONS OF THE REPUBLIC OF MOLDOVA
(CEP USM, 2024) Guţu, Ana; Ţiţei, Victor; Ababii, Alexei; Gadibadi, Mihail; Dorofte, Veaceslav; Cozari, Sergiu; Gudima, Andrei; Andreoiu, Andreea Cristina; Tod, Monica; Cîrlig, Natalia; Mazăre, Veaceslav; Mazăre, Romina
We studied some biological features and the quality of the silage prepared from Isatis tinctoria plants cultivated in the experimental plot of the “Alexandru Ciubotaru” National Botanical Garden (Institute), Chisinau, R. Moldova. In the second growing season the local ecotype of Isatis tinctoria was characterized by fast growth and development rate, reaching 118-147 cm in height, with a content of leaves and inflorescences of 57%. I t has been determined that the dry matter of ensiled mass from the local ecotype of Isatis tinctoria was characterized by 196 g/kg CP, 160 g/kg ash, 314g/kg CF, 335 g/kg ADF, 521 g/kg NDF, 37g/kg ADL, 298 g/kg Cel, 201g/kg HC with nutritive value 628 g/kg DDM, 10.16 MJ/kg ME, 6.18 MJ/kg NEl and RFV=112, this fact indicates an optimal quality of the silages prepared for ruminants. The biochemical methane production potential of Isatis tinctoria silage substrates reached 361 L/kg VS. The ensiled biomass from the local ecotype of Isatis tinctoria can be used as alternative forage for ruminant animals, or as substrates in biogas generators for the production of renewable energy.
Evaluarea indicilor de calitate a fitomasei energetice de Dactylis glomerata L. şi Festuca pratensis Huds
(CEP USM, 2024-10-07) Ţîţei, Victor; Ababii, Alexei; Blaj Vasile; Doroftei, Veaceaslav; Gadibadi, Mihai; Andreoiu, Andreea; Marușca, Teodor; Gudima, Andei; Tod, Monica; Daraduda, Nicolae
We studied the quality indices of the energy phytomass from perennial grass Dactylis glomerata and Festuca pratensis, collected from the experimental field of the National Botanical Garden (Institute) MSU, Chişinău. The quality indices of green mass substrates for anaerobic digestion: 92-98 g/kg CP, 359-389 g/kg CF, 76-80 g/kg CA, 648-682 g/kg NDF, 380-412 g/kg ADF, 33-41 g/kg ADL, 347-371 g/kg Cel, 269-270g/kg HC, with C/N=32.74-34.72 and biochemical methane potential 337-350 l/kg ODM. The quality indices of phytomass (straw) substrates: 771-799 g/kg NDF, 478-484 g/kg ADF, 54-65 g/kg ADL, 419-424 g/kg Cel, 293- 315g/kg HC and theoretical ethanol yield from structural carbohydrates averaged 522-533 L/t. The quality indices of solid biofuel–pellets: 8.01-9.03% ash, 18.10-18.44 MJ/kg GCV, 16.73-17.07 MJ/kg NCV with bulk density 595-652 kg/m3 and durability 93-96%.
Evaluarea producţiei şi calităţii speciei Alopecurus pratensis în condiţiile specifice Depresiunii Başovului
(CEP USM, 2024-10-07) Tod, Monica; Bălan, Mironela; Zevedei, Paul; Andreoiu, Andreea
The study was carried out based on the experience of a comparative culture, which is composed of 11 genotypes of Alopecurus pratensis and presents the production capacity and the quality of the fodder obtained under the specific conditions of the Brașov Depression in the year 2023. The results obtained showed that the production of dry matter of the species was obtained between 8.68 and 10.27 tons per hectare. The fodder quality of the species was good, having an average content of crude protein (CB) of 13.8%, in crude fiber (CF) of 32.6%, and digestibility coefficients (DMD, DOM) varied between 57.4 and 60.5%. Based on the results obtained, it can be concluded that the species Alopecurus pratensis in culture has a high potential, a minimum of three harvests can be made in an agricultural year, at first cut the highest production of dry matter is obtained, representing 45% of the total production, and depending on the phenophase of the vegetation at harvest, the fodder obtained can ensure a high quality.
INDICII DE CALITATE A BIOMASEI DE PĂIUȘ ÎNALT, FESTUCA ARUNDINACEA ÎN MOLDOVA
(CEP USM, 2024) Ţiţei, Victor; Ababii, Alexei; Blaj, Adrian Vasile; Gadibadi, Mihail; Doroftei, Veaceslav; Andreoiu, Andreea Cristina; Tod, Monica; Maruşca, Teodor
We studied the quality indices of the harvested green mass from romanian cultivars ‘Adela’ and ‘Marvla ‘ of tall fescue Festuca arundinacea grow in the experimental plot of the National Botanical Garden (Institute) “Alexandru Ciubotaru” MSU, Chisinau, R. Moldova. It has been determined that the dry matter of harvested whole plant in the second and third growing seasons from studied tall fescue contained 106-131 g/kg CP, 98-103 g/kg ash, 337-362 g/kg CF, 654-712 g/kg NDF, 338-410 g/kg ADF, 25-39 g/kg ADL, 316- 373 g/kg Cel, 278-313 g/kg HC, 44-161 g/kg TSS, with nutritive and energy value 57.0-62.5% DDM, 9.31-10.11 MJ/kg ME and 5.32-6.14 MJ/kg NEl. The tall fescue green masssubstrates used for anaerobic digestion have optimal C/N ratio, amount of lignin, hemicellulose and the biochemical methane potential of achieved 342-366 l/kg ODM.