Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(6), 239-246 | DOI: 10.11118/actaun201159060239

Analysis of biogas production from grass silage, depending on its quality

Martin Mrůzek, Bořivoj Groda
Ústav zemědělské, potravinářské a environmentální techniky, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika

This article (work) gives information about production of methane from 11 samples of grass silage. Production was studied in two following levels:
* specific methane production per 1 kg of organic total solids,
* specific methane production per 1 kg of fresh material.
These grass silage samples were at the same time analyzed from the point of view of feeding properties and quality: protein, digestible protein, fiber, acid-detergent fiber (ADF), neutral- detergent fiber (NDF), BNVL, lactic acid, acetic acid, butyric acid, starch values, metabolizable energy, total energy, net energy lactation, net energy for fattening, pH, acidity of the water leachate mg KOH, protein PDIA, protein PDIN, protein PDIE, Na, K, P, Mg, Ca and ash.
Statistic dependence was searched between feeding quality and methane production of tested samples. As statistically significant parameters influencing methane production were: lactic acid, pH, acidity of the water leachate mg KOH and total solids. Change of concentration of remaining parameters had not adequately provable influence on methane production.

Keywords: methane, biogas, grass silage, value of reliability, organic total solids, fresh material

Received: June 27, 2011; Published: March 16, 2014  Show citation

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Mrůzek, M., & Groda, B. (2011). Analysis of biogas production from grass silage, depending on its quality. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 59(6), 239-246. doi: 10.11118/actaun201159060239
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