Fossil energy and GHG saving potentials of pig farming in the EU

Nguyen, Thu Lan T.; Hermansen, John E.

doi:10.1016/j.enpol.2009.12.051

Cited by 94 publications

(52 citation statements)

References 15 publications

(11 reference statements)

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“…To eliminate the double accounting, a credit for avoided nutrient field application (including occurring emissions, i.e., leaching to water of mineral fertilizers, which was calculated with the respective emission factors) and fertilizer production is given. The credit given was based on the manure nutrients that were actually available after subtraction of emissions to air and water during storage and field application (Nguyen et al, 2010). Although Nguyen et al (2010) recommend using 75% for manure N credit, a more conservative approach of 50% is used in all alternatives and regions.…”

Section: Description Of Processesmentioning

confidence: 99%

“…The credit given was based on the manure nutrients that were actually available after subtraction of emissions to air and water during storage and field application (Nguyen et al, 2010). Although Nguyen et al (2010) recommend using 75% for manure N credit, a more conservative approach of 50% is used in all alternatives and regions. Because of concern of P loading in the environment, a smaller amount of manure N maybe applied than the crop requirement.…”

Section: Description Of Processesmentioning

confidence: 99%

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Environmental impact of using specialty feed ingredients in swine and poultry production: A life cycle assessment1

Kebreab

Liedke²,

Caro

et al. 2016

Journal of Animal Science

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Livestock production has a variety of environmental impacts such as greenhouse gas emissions, water pollution, acidification, and primary energy consumption. The demand for livestock products is expected to grow substantially, creating even more environmental pressure. The use of specialty feed ingredients (SFI) such as supplemented AA and phytase can reduce nutrient input into the system without compromising productivity and consequently can reduce emissions. The global change impact of using SFI in pig and broiler production systems in Europe and North and South America was studied. A life cycle assessment according to international standards (ISO 14040/44) analyzed contributions from producing SFI and animals to global change. Three different alternatives were analyzed. In addition, partial sensitivity analysis was conducted using 5 scenarios for each region for both production systems. Specialty feed ingredient supplementation in pig and broiler diets reduced greenhouse gas emissions (cradle to farm gate) by 56% and 54% in Europe, 17% and 15% in North America, and 33% and 19% in South America, respectively, compared to an unsupplemented diet. A total of 136 Mt CO 2 equivalent (CO 2 eq) was saved in 2012, rising to 146 Mt CO 2 eq in 2050 on the basis of United Nations population projections. Considerable benefits of supplementation with SFI were apparent in European and South American diets when direct land use change was considered because of the reduced demand for soybean meal. The eutrophication potential of unsupplemented diets was reduced by up to 35% in pig and 49% in broiler production systems compared to supplemented alternatives. The acidification potential of supplemented strategies was reduced by up to 30% in pig and 79% in broiler production systems. The primary energy demand was similar in all alternatives, and this could be an area where the SFI industry can improve. Overall, SFI supplementation substantially reduced the global warming, eutrophication, and acidification potentials in all regions studied.

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Section: Description Of Processesmentioning

confidence: 99%

Section: Description Of Processesmentioning

confidence: 99%

Environmental impact of using specialty feed ingredients in swine and poultry production: A life cycle assessment1

Kebreab

Liedke²,

Caro

et al. 2016

Journal of Animal Science

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“…All of the environmental analyses aim at assessing GHG emissions in order to reduce the climate change related impacts as one of the main requirements for sustainable production [37,39,40]. In this sense, there is a growing need to meet the European Union Climate Action targets, which aim to reduce GHG emissions to 40% of the 1990 levels by 2030 [41].…”

Section: Introductionmentioning

confidence: 99%

Design of Indicators of Circular Economy as Instruments for the Evaluation of Sustainability and Efficiency in Wastewater from Pig Farming Industry

Moreno

Leyva‐Díaz

Montes

et al. 2017

Water

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Circular economy intends to turn waste into resources that can be reintroduced into the production process, eliminating the negative externalities from it. The impact of pig manure on the environment is one of the main challenges in agriculture. The high amount of pig manure coming from the pig farming industry complicates the management of this type of effluents, leading to a serious impact on the environment, as it pollutes the soil, the water, and the air. The concept of the indicator of circular economy was introduced to evaluate the degree of approximation of the pig manure treatment process to the circular economy model. In light of this, these indicators showed the possibility of obtaining 0.97 m 3 water h −1 , 49.40 kg biofertilizer h −1 , and 5.33 m 3 biogas h −1 per 1 m 3 pig manure h −1 treated, allowing us to assess the minimization of waste generation and the efficiency of the use of resources. By applying an anaerobic digestion process to treat pig manure, reductions of water and natural gas consumptions were 47.01% and 5.33%, respectively, which leads to a reduction in emissions of 171.98 kg CO 2 h −1 . Consequently, pig manure can be considered as a technological nutrient that is reintroduced into the productive system, enabling the recovery of energy, water, and biofertilizer contained therein.

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“…In intensive pig or broiler production, animals are most often fed with high-protein and -energy feedstuffs imported from outside the farm, the production of which involves crop products and industrial processes. Therefore, the production of complete feed contributes -E-mail: Jean-Yves.Dourmad@rennes.inra.fr greatly to the environmental impacts of the pork (Blonk et al, 1997;Carlsson-Kanyama, 1998;Basset-Mens and van der Werf, 2005;Nguyen et al, 2010;de Vries and de Boer, 2010) and chicken (Katajajuuri et al, 2008) meat supply chain.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the environmental implications of the incorporation of feed-use amino acids in the manufacturing of pig and broiler feeds using Life Cycle Assessment

Mosnier

Werf

Boissy

et al. 2011

Animal

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The incorporation of feed-use (FU) amino acids (AAs) in diets results in a reduced use of protein-rich ingredients such as soybean meal, recognized to have elevated contributions to environmental impacts. This study investigated whether the incorporation of L-lysine.HCl, L-threonine and FU-methionine reduces the environmental impacts of pig and broiler feeds using Life Cycle Assessment. The following impact categories were considered: climate change, eutrophication, acidification, terrestrial ecotoxicity, cumulative energy demand and land occupation. Several feeds were formulated either to minimize the cost of the formulation (with or without AA utilization), to maximize AA incorporation (i.e. the cost of AA was considered to be similar to that of soybean meal), or to minimize greenhouse gas emissions. For both pig and broiler feeds, calculations were made first using only cereals and soybean meal as main ingredients and then using cereals and several protein-rich ingredients (soybean meal, rapeseed meal and peas). In addition, these calculations were performed using two types of soybean meal (from Brazil, associated with recent deforestation or not). For broiler feeds, two types of maize (from France, irrigated, with mineral fertilization v. not irrigated, with animal manure fertilization) were also tested. Regarding the feeds formulated to minimize cost, incorporation of AA decreased the values for eutrophication, terrestrial ecotoxicity and cumulative energy demand of both pig and broiler feeds, regardless of the base ingredients. Reduction in climate change and acidification due to the incorporation of AA depended on the nature of the feed ingredients, with the effect of AA incorporation being greater when combined with ingredients with high impacts such as soybean meal associated with deforestation. Feeds formulated to maximize AA incorporation generally had a similar composition to those formulated to minimize cost, suggesting that the costs of AA were not the limiting factor in their incorporation. Feeds formulated to minimize greenhouse gas emissions had the lowest values for climate change and cumulative energy demand, but not for other impacts. Further research is needed to elucidate whether the incorporation of additional AA (tryptophan and valine) along with L-lysine, L-threonine and FU-methionine could decrease on the environmental impacts of pig and broiler feeds further.

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Fossil energy and GHG saving potentials of pig farming in the EU

Cited by 94 publications

References 15 publications

Environmental impact of using specialty feed ingredients in swine and poultry production: A life cycle assessment1

Environmental impact of using specialty feed ingredients in swine and poultry production: A life cycle assessment1

Design of Indicators of Circular Economy as Instruments for the Evaluation of Sustainability and Efficiency in Wastewater from Pig Farming Industry

Evaluation of the environmental implications of the incorporation of feed-use amino acids in the manufacturing of pig and broiler feeds using Life Cycle Assessment

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