Life Cycle Assessment of broiler chicken production: a Portuguese case study

González‐García, Sara; Gomez-Fernández, Zaira; Dias, Ana Cláudia; Feijoo, Gumersindo; Moreira, Marı́a Teresa; Arroja, Luís

doi:10.1016/j.jclepro.2014.03.067

Cited by 106 publications

(53 citation statements)

References 31 publications

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“…Also, Gonzalez-Garcia et al . [22] reported the values 0.0305 kg SO 2 eq, 0.0143 kg PO 4 3- eq, 1.588 kg CO 2 eq and 10.941 MJ for AP, EP, GWP 100 and CED, respectively. The differences from this study could be attributed to differences in the systems studied and the LCA methodology followed (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…All transport processes have been taken into account in the analysis. However, the partial life cycles of buildings and machinery as well as those of cleaning and disinfection chemicals and veterinary medicines, have not been taken into consideration due to lack of data and due to their expected low contribution to the total environmental impacts of the system [19, 22]. Moreover, as the purchase of the diets’ additives was less than 1% of the total mass, they were excluded from the analysis, assuming that they will have a very low contribution [18].…”

Section: Methodsmentioning

confidence: 99%

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Effects of Protease Addition and Replacement of Soybean Meal by Corn Gluten Meal on the Growth of Broilers and on the Environmental Performances of a Broiler Production System in Greece

Giannenas

Bonos²,

Anestis

et al. 2017

PLoS ONE

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An experimental study was conducted to examine the combined effects of adding a dietary protease, reducing the levels of soybean meal (SBM) and introducing corn gluten meal (CGM) in the ration of a group of broilers reared on a commercial Greek farm. Five hundred forty chicks were divided into three dietary treatments with six replicates of thirty birds each. The first group (Control) was fed a conventional diet based on corn and soybean meal, containing 21% w/w crude protein (CP). The second group (Soy-Prot) was supplied a corn and SBM-based diet containing a lower level of CP (20% w/w) and 200 mg of the protease RONOZYME® Proact per kg of feed. The third group (Gluten-Prot) was fed a diet without soybean-related constituents which was based on corn and CGM and with CP and protease contents identical to those of the diet of the Soy-Prot group. Body weight, feed intake, feed conversion ratio (FCR), intestinal microbiota populations and morphology, meat quality and cost were evaluated. Furthermore, a partial life cycle assessment (LCA) was performed in order to assess the potential environmental performance of the systems defined by these three dietary treatments and identify their environmental hot-spots. The growth performance of the broilers supplied the Soy-Prot diet was similar to the broilers supplied the Control diet. However, the broilers which were fed the Gluten-Prot diet at the end of the trial showed a tendency (P≤0.010) for lower weight gain and feed intake compared to those of the Control diet. When compared to the Control group, lower counts of C. perfringens (P≤0.05) were detected in the ileum and cecum parts, and lower counts of F. necrophorum (P≤0.001) were detected in the cecum part of the birds from the Gluten-Prot group. The evaluation of intestinal morphometry showed that the villus height and crypt depth values were not significantly different (P>0.05) among the experimental groups for the duodenum, jejunum and ileum parts. No significant differences (P>0.05) were observed in the quality of the breast and thigh meat and in the feed cost per kg body weight gain for the total duration of the growth period between the Control and Gluten-Prot broiler groups. The LCA suggested that the ammonia and nitrous oxide emissions due to litter handling constitute the farm level hot-spots for the Acidification and Eutrophication Potentials of the Control and Soy-Prot systems and the Global Warming Potential of the Gluten-Prot system, respectively. The Latin American soybean production and domestic corn production and lignite mining are important off-farm polluting processes for the studied life cycles. The Soy-Prot and Gluten-Prot systems both performed better than the Control system in nine of Environmental Impact Category Indicators assessed, with the respective differences being generally larger for the Gluten-Prot system. The environmental impact estimates are regarded as initial, indicative figures due to their inherent uncertainty. Overall, the results could be considered as positive indications in t...

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effects of Protease Addition and Replacement of Soybean Meal by Corn Gluten Meal on the Growth of Broilers and on the Environmental Performances of a Broiler Production System in Greece

Giannenas

Bonos²,

Anestis

et al. 2017

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…In some articles with the focus on food, instead, it was observed a low detail provided for the modelling of FL and FW recovery and/or disposal (e.g. Gonz alez-García et al, 2014;Meier and Christen, 2013). This can be explained by the prejudice that the end-of-life stage is of relatively low relevance compared to the environmental impacts generated along the FSC.…”

Section: Treatment Of Food Loss In Waste Plantsmentioning

confidence: 99%

“…Some authors did not account for the environmental burden of FL management treatments either because they excluded them from the system boundaries (e.g. Ardente et al, 2006;Gonz alez-García et al, 2014) or because they considered FL management treatments as a negligible source of emissions (e.g. Saarinen et al, 2012).…”

Section: Treatment Of Food Loss In Waste Plantsmentioning

confidence: 99%

Modelling of food loss within life cycle assessment: From current practice towards a systematisation

Corrado

Ardente

Sala

et al. 2017

Journal of Cleaner Production

128

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a b s t r a c tFood loss is a major concern from both environmental and social point of view. Life Cycle Assessment (LCA) has been largely applied to quantify the environmental impact of food and to identify pros and cons of different options for optimisation of food systems management, including the recovery of potential waste occurring along the supply chain. However, within LCA case studies, there is still a general lack of proper accounting of food losses. A discrepancy both in food loss definition and in the approaches adopted to model the environmental burden of food loss has been observed. These aspects can lead to misleading and, sometimes, contrasting results, limiting the reliability of LCA as a decision support tool for assessing food production systems. This article aims, firstly, at providing a preliminary analysis on how the modelling of food loss has been conducted so far in LCA studies. Secondly, it suggests a definition for food loss to be adopted. Finally, the article investigates the consequence of using such definition and it proposes potential paths for the development of a common methodological framework to increase the robustness and comparability of the LCA studies. It discusses the strengths and weaknesses of the different approaches adopted to account for food loss along the food supply chain: primary production, transport and storage, food processing, distribution, consumption and end of life. It is also proposed to account separately between avoidable, possibly avoidable and unavoidable food loss by means of specific indicators. Finally, some recommendations for LCA practitioners are provided on how to deal with food loss in LCA studies focused on food products. The most relevant recommendations concern: i) the systematic accounting of food loss generated along the food supply chain; ii) the modelling of waste treatments according to the specific characteristics of food; iii) the sensitivity analysis on the modelling approaches adopted to model multi-functionality; and iv) the need of transparency in describing the modelling of food loss generation and management.

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“…The animal diets were taken from Portuguese LCA studies and, when necessary, experts were consulted [68][69][70]. Conversions from feed items to crop amounts were determined and complete animal diets were accounted for the requirements of edible meat and eggs sub-categories for each chosen diet ( Figure 2).…”

Section: Food Self-reliance Assessmentmentioning

confidence: 99%

Mapping the Lisbon Potential Foodshed in Ribatejo e Oeste: A Suitability and Yield Model for Assessing the Potential for Localized Food Production

et al. 2017

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Abstract:Research on food planning has been recently proposed in North American and European planning to account for how cities might change their food provision to respond to the rising demands for a more sustainable and ethical food system. The purpose of this paper was to evaluate the agro-ecological potential of the Lisbon city region, Ribatejo e Oeste, to increase its Regional Food Self-Reliance (RFSR), through adopting demand restraint and food system relocalization approaches to food system sustainability. Three new diet scenarios were considered: meat-based, plant-based and strict vegetarian, defined in accordance with healthy dietary patterns. We used agro-climatic and agro-edaphic agricultural suitability models to evaluate the agro-ecological potential for RFSR, and proposed the use of Foodshed Landscape Plans within a landscape planning methodology. Results showed the extent of local food production that could improve food self-reliance, with 72%, 76%, 84% of total food needs in the meat-based, plant-based, and strict vegetarian scenarios, respectively. Thus, food system transformation by means of relocalization, is therefore ecologically feasible and would ensure the sustainable use of the ecological basis of food security. Additionally, a dietary transition would imply significant land sparing, which strengthens the demand restraint perspective for a transition to food system sustainability.

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Life Cycle Assessment of broiler chicken production: a Portuguese case study

Cited by 106 publications

References 31 publications

Effects of Protease Addition and Replacement of Soybean Meal by Corn Gluten Meal on the Growth of Broilers and on the Environmental Performances of a Broiler Production System in Greece

Effects of Protease Addition and Replacement of Soybean Meal by Corn Gluten Meal on the Growth of Broilers and on the Environmental Performances of a Broiler Production System in Greece

Modelling of food loss within life cycle assessment: From current practice towards a systematisation

Mapping the Lisbon Potential Foodshed in Ribatejo e Oeste: A Suitability and Yield Model for Assessing the Potential for Localized Food Production

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