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Showing 1 to 19 of 19 for “"grass silage"”.
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Biomethane production from grass silage: laboratory assessment to maximise yields
… may not be ideally suited to the digestion of grass. Ireland has ca. 3.85 million ha of grassland. Annual excess grass, surplus to livestock requirements, could potentially fuel an anaerobic digestion industry. Biomethane associated with biomass from 1.1 % of grassland in Ireland, could …
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The Effects of Oat Silage and of Legume-Grass Silage on Beef Carcass Quality
Made available in DSpace on 2014-12-05T17:47:24Z (GMT). No. of bitstreams: 1 0013459.pdf: 3864848 bytes, checksum: ece49f40e3fd494b31eb8a35fd6bff6d (MD5) Previous issue date: 1955
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Sequential temperature phased enhanced anaerobic digestion using bioaugmentation microbes to enhance biomethane production from alkali pretreated late cut grass and late cut grass silage
… for lignocellulosic feedstock such as late cut grass and late cut grass silage. However, such lignocellulosic feedstock is relatively recalcitrant and suffers from lower biomass biodegradability and lower biomethane production compared to starch and sugar rich waste streams. For the biogas …
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Green grass: developing grass for sustainable gaseous biofuel
Grass is ubiquitous in Ireland and temperate northern Europe. It is a low input perennial crop; farmers are well versed in its production and storage (ensiling). Anaerobic digestion is a well understood technology. Grass is a lignocellulosic feedstock which is fibrous; it can readily cause …
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Design and Optimization of Process Parameters in Bio-Gas Production Systems
… as a new mechanical treatment was applied to grass silage to improve the anaerobic digestion combined with sludge to produce biogas. One of the objectives is to investigate the effect of beating treatment on the AD process to produce biogas from grass silage. The other objective is to optimise …
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Understanding and exploiting bacteriophage-host interactions for the control and detection of listeria monocytogenes
… Phage vB_LmoH_P61, a lytic phage isolated from grass silage, was applied to food matrices for the biocontrol of L. monocytogenes which resulted in the inhibition of L. monocytogenes in artificially inoculated pasteurized milk and baby spinach. The key findings from this study show the importance …
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Scaling down direct dimethyl ether synthesis for biogas conversion
… system was studied. Anaerobic digestion (AD) of grass silage was used as a feedstock for production of biogas and it was found that grass silage has high affinity for methane enriched biogas. A mathematical model was developed to investigate the effect of operation conditions in reforming of this …
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International biogas applications
… on-site co-digestion of pig slurry and grass can be economically feasible if the biogas produced is used to generate electricity. Centralised biogas plants appear less profitable, requiring higher tariffs to break even. The production of biomethane as a transport fuel is not economically …
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Integration of anaerobic digestion with bio-electrochemical technologies in cascading circular bioeconomy systems producing biofuel and chemicals
… potential in batch two-stage co-digestion of grass silage and cattle slurry, with varying dosages of biochar supplementation. Biochar addition at the optimal dosage of 10 g/L in two-stage digesters led to the highest methane yield of 253 L per kilogram (kg) volatile solid (VS), which was 24% …
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The role of higher protein forages and home grown protein sources within Northern Ireland dairy production systems
… annual dry matter (DM) yields. In addition, RC silage normally has a higher protein content than grass silage (GS). Furthermore, as a legume, RC has the ability to fix atmospheric nitrogen (N), thus reducing the need for inorganic fertiliser N. However, due to its high protein content, and the …
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Implications of the ability of Enterococcus spp. to survive the ensiling process and bovine gastrointestinal tract on the risk of bovine mastitis
… ability of enterococci to survive 3 wk ensiling. Grass and corn crops were divided into 3 treatments: 2 commercial silage inoculants, 1 negative control. After wk 1, 2, and 3 of ensiling, dry matter and bacterial enumeration were performed. Addition of silage inoculant led to greater levels of …
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Biogas production from novel substrates
… The C:N ranged from 81:1 (Winter Oats) to 7:1 (Silage Effluent). The BMP yields were recorded ranging from 38 ± 2.0 L CH4 kg−1 VS for pig slurry (weaning pigs) to 805 ± 57 L CH4 kg−1 VS for used cooking oil (UCO). However the selection of the best preforming feedstock in terms of C:N ratio or …
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Reducing the impact of feedstuff transport by a better utilization of plant wastes for livestock: a way to improve meat quality?
… assessed the quality indices of beef from grass silage-fed steers offered concentrate supplements in which barley/soybean meal was replaced with varying levels of CGF (25%, 50% and 75%), CDGS and WDGS (80%), and DCP (40% and 80%), respectively. The inclusion of up to 75% CGF improved the FA …
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Yield, Quality, and Botanical Composition of Autumn-Accumulated Grass-Legume Mixtures and Digestibility of Ensiled Autumn-Accumulated Orchardgrass and Alfalfa
… and reduce feeding costs. Three stockpiled grass-legume mixtures were evaluated for winter grazing. In addition, stockpiled forages were ensiled and evaluated as livestock feed. Four accumulation dates and seven harvest dates were randomized to small plots of tall fescue (Festuca arundinacea …
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Temporal sensory liking methods: an investigation with beef steaks from different production systems
… derived from animals that were fed grain (GF), grass silage and grain (SG) or grazed grass (GG) during finishing and use different methods to determine the data quality and consumers variability. Three separate panels of regular beef-eating consumers (n=51; n=52; n=50) were recruited from …
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The impact of sustainability assessment of renewable gas systems on policy implications and optimum end use
… include food waste, slurry from farming, and grass silage. Gasification and methanation of willow are potential future resources. The 2018 recast European Renewable Energy Directive (RED recast) sets emissions savings criteria for renewable fuels. The criteria are more stringent for use of the …
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The development of systems to improve the health and performance of dairy-origin beef young stock
… for finishing on an ad libitum concentrate and grass silage diet, and slaughtered at a mean age of 15.5 months. Performance was greatest in year one (P<0.001) and for AB bulls (P<0.001). GA bulls had the greatest DMI during both the grower (P<0.001) and finishing period (P<0.001), while that of …
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Soil properties, lime and phosphorus fertiliser management affecting grass production in Ireland
… nutrient and is an essential element required by grasslands for optimum production and herbage P concentration for animal dietary requirements. However phosphorus is a finite resource and efforts must be made to reduce P needs in grassland to prolong its remaining lifespan. In Ireland current P …