Biorefined press cake silage as feed source for dairy cows: effect on milk production and composition, rumen fermentation, nitrogen and phosphorus excretion and in vitro methane production

Serra, Eleonora; Lynch, M.B.; Gaffey, James; Sanders, J.P.M.; Koopmans, Sybrandus; Markiewicz-Kęszycka, Maria; Bock, M.H.; McKay, Z.C.; Pierce, K.M.

doi:10.1016/j.livsci.2022.105135

Cited by 8 publications

(7 citation statements)

References 45 publications

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“…In an Irish study with press cake from grass biorefinery the protein content in cattle feed was reduced from 18% to 15,2% while the milk yield was the same as the control. The N excreted was 17% lower as compared with the control experiment (Serra et al, 2023).…”

Section: Grass Refinerymentioning

confidence: 66%

“…Combining these feed adaptations will probably result in feed that can be fed to cows under most conditions at protein levels lower than 15%, which can reduce the N excretion per litre of milk up to 30%. If by increasing resistance for part of the protein in the diet no longer 17.2% of the dry matter intake is required in the form of protein, but only 15.2%, a feed intake of 2300 kton of protein would result in the same 600 kton milk and meat protein as is now the case based on a feed protein intake of 2600 kton (Serra et al 2023). This reduces the protein need potentially with at least 300 kton, equivalent to 48 kton of N. We assumed that by 2030 10% of this potential is possible, increasing to 25% by 2040, which is 5 and 12 kton N respectively.…”

Section: Increase Resistance Of Proteins In Cows Dietsmentioning

confidence: 99%

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Options to improve the nitrogen use efficiency in the Dutch agriculture sector

Lesschen

Sanders

2023

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Section: Grass Refinerymentioning

confidence: 66%

Section: Increase Resistance Of Proteins In Cows Dietsmentioning

confidence: 99%

Options to improve the nitrogen use efficiency in the Dutch agriculture sector

Lesschen

Sanders

2023

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“…In this approach, fresh grass can be converted into multiple protein sources, including a press cake which is suitable for feeding ruminants and a leaf protein concentrate (LPC) which is suitable for feeding monogastric animals, such as pigs and poultry. Previous work from [70] has highlighted the potential for press cake to replace silage in dairy cow diets, achieving comparable milk yields, while offering a reduction in nutrient (nitrogen and phosphorus) excrement losses and delivering a higher nitrogen use efficiency. Work by [71,72] has shown that the extracted protein LPC can serve as a suitable replacement for imported soya bean meal in the diets of pigs.…”

Section: Opportunities For Further Emission Reductionmentioning

confidence: 99%

A Business Case for Climate Neutrality in Pasture-Based Dairy Production Systems in Ireland: Evidence from Farm Zero C

Rubhara,

Gaffey,

Hunt

et al. 2024

Sustainability

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Agriculture in Ireland is responsible for producing and exporting healthy, nutritional food pivotal for meeting the Sustainable Development Goals (SDGs) such as global food security, economic development and sustainable communities. However, the agricultural sector, dominated by a large bovine population, faces the challenge of reducing greenhouse gas (GHG) emissions to reach climate neutrality by 2050. The objective of the current study was to model the environmental and economic impact of simultaneously applying farm-level climate change mitigation strategies for a conventional grass-based dairy farm in Ireland. An average farm of 52 ha with a spring-calving herd of 93 was used as a reference scenario to create a business case. Partial budgeting was used to calculate the annual net benefit. A cradle-to-grave life cycle assessment (LCA) was used to model the reduction in GHG emissions, which was expressed as kg of carbon dioxide equivalent per kilogram of fat- and protein-corrected milk (kg CO2-eq/kg FPCM). The baseline for average emissions was 0.960 kg CO2-eq/kg FPCM. An average farm would reduce its annual emissions by 12% to 0.847 kg CO2-eq/kg FPCM in Scenario 1, where climate change mitigation strategies were applied on a minimal scale. For Scenario 2, the emissions are reduced by 36% to 0.614 kg CO2-eq/kg FPCM. In terms of annual savings on cash income, an increase of EUR 6634 and EUR 18,045 in net savings for the farm are realised in Scenarios 1 and 2, respectively. The business case provides evidence that farms can move towards climate neutrality while still remaining economically sustainable.

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“…Of the above-mentioned feeding experiments, Damborg et al [ 51 ], Sousa et al [ 49 ] and Serra et al [ 50 ] pressed fresh grass and ensiled the cake, while Savonen et al [ 48 ] used ensiled grass. When fresh grass is pressed, a significant part of water soluble carbohydrates that would be used as substrate for lactic acid production during the silage fermentation process are removed, which could compromise the preservation.…”

Section: Introductionmentioning

confidence: 99%

Novel uses of ensiled biomasses as feedstocks for green biorefineries

Rinne

2024

J Animal Sci Biotechnol

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Perennial forage plants are efficient utilizers of solar radiation and nutrients so that there is a lot of scope to increase the production of green biomass in many areas. Currently, grasses are mainly used as feeds for ruminants and equines, but there could be higher added value use for several components of the green biomass. Interest in green biorefining has risen recently motivated by the increased sustainability pressures and need to break the reliance on fossil fuels. Novel products derived from grass, such as paper and packaging, nanofibers, animal bedding, novel protein feeds, extracted proteins, biochemicals, nutraceuticals, bioactive compounds, biogas and biochar could create new sustainable business opportunities in rural areas. Most green biorefinery concepts focus on using fresh green biomass as the feedstock, but preservation of it by ensiling would provide several benefits such as all-year-around availability of the feedstock and increased stability of the press juice and press cake. The major difference between fresh and ensiled grass is the conversion of water soluble carbohydrates into fermentation end products, mainly lactic and acetic acids, that lower the pH of the silage so that it becomes stable in anaerobic conditions. This has some important consequences on the processability and quality of products, which are partly positive and partly negative, e.g., degradation of protein into peptides, amino acids and ammonia. These aspects are discussed in this review. Graphical Abstract

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Biorefined press cake silage as feed source for dairy cows: effect on milk production and composition, rumen fermentation, nitrogen and phosphorus excretion and in vitro methane production

Cited by 8 publications

References 45 publications

Options to improve the nitrogen use efficiency in the Dutch agriculture sector

Options to improve the nitrogen use efficiency in the Dutch agriculture sector

A Business Case for Climate Neutrality in Pasture-Based Dairy Production Systems in Ireland: Evidence from Farm Zero C

Novel uses of ensiled biomasses as feedstocks for green biorefineries

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