ELFE, a database to determine greenhouse gases and ammonia emissions factors from livestock

ELFE, a database to determine greenhouse gases and ammonia emissions factors from livestock. 20. Nitrogen Workshop. Coupling C-N-P-S cycle

ENJEUX ET EVALUATION DES EMISSIONS GAZEUSES DANS LES ELEVAGES DE VOLAILLES

ENJEUX ET EVALUATION DES EMISSIONS GAZEUSES DANS LES ELEVAGES DE VOLAILLES. 10èmes Journées de la Recherche Avicoles et Palmipèdes à Foie Gra

Treatment of HeartMate III-LVAD driveline infection by negative pressure wound therapy: Result of our case series

Driveline infection is one of the most frequent complications following left ventricular assist device (LVAD) treatment and there is no consensus for its management. The standard approach to treat foreign-body infection is complete device ablation, which is not always feasible and therefore not an elected method for LVAD driveline infections. Here we share the results from a series of cases successfully treated for driveline infection by negative pressure wound therapy (NPWT) therapy. Between 2016 and 2020, five male patients were hospitalized in our unit with a driveline infection of HeartMate III-LVAD®. Ultrasonography and/or thoraco-abdominal CT confirmed the diagnosis, infection localization, and abscess formation. Following an antibiotic treatment, an urgent surgical abscess drainage and debridement of the infected tissues were performed. At the end of the procedure, NPWT was applied. NPWT re-dressing and debridement of wound was performed every 3-4 days. The wound was closed surgically after obtaining negative culture results and good healing. The patients were discharged in good condition, without signs of infection. Two patients underwent successful heart transplantation after 1 and 13 months. Other patients did not show any residual or recurrent infection during the follow-up within 25 months. Driveline infection following LVAD implantation is a significant complication and a challenging in terms of management for both; the surgical team and the patient. These results from our case series report a successful and less invasive approach by using NPWT for the treatment of LVAD driveline infections

Émissions gazeuses de NH3, N2O, CH4 et CO2 en élevage avicole, bovin et porcin

Émissions gazeuses de NH3, N2O, CH4 et CO2 en élevage avicole, bovin et porci

Development of a database to collect emission values for livestock systems

Growing demand for animal products has contributed to an increase in biogeochemical fluxes, leading particularly to gaseous ammonia, methane, and nitrous oxide emissions into the atmosphere. Developing accurate knowledge on the sources and magnitude of gas emissions from the livestock sector is essential to reducing emissions, while meeting other societal expectations, and to implementing effective regulations. To this end, a database called ELFE (ELevage et Facteurs d’Emission; i.e., Livestock and Emission Factors) was recently developed. It currently contains ?5200 gas emission measurements extracted from 345 publications of the international literature published from 1964 to 2018 from 37 countries. One of its innovative aspects is the structured and comprehensive description of both the livestock system and the measurement method associated with emission data. Ammonia emitted by livestock systems represents 40 to 80% of emission values and 45 to 81% of the values concern production systems with slurry, depending on the animal produced. This database will contribute to improved emission factors for national inventories by more thoroughly considering factors influencing emission levels and data quality. It highlights the need for shared and standardized reporting protocols for both the livestock system itself and the measurement conditions, to allow for thorough comparisons and to reduce uncertainty in unit conversions. The database is available online on the Institut national de la recherche agronomique (INRA) platform (https://data.inra.fr/dataset.xhtml?persistentId=doi:10.15454/MHJPYT) and will be updated annually with new gas emissions

Réduire les impacts environnementaux des produits animaux avec des éco-aliments

L’alimentation du bétail est au cœur des problématiques environnementales des élevages. Pour les porcs et les volailles, elle explique entre 50 et 98% de leurs impacts environnementaux au portail de la ferme. Pour les bovins, leurs concentrés représentent 17% des 12.3 millions de tonnes d’aliments composés produits dans le Grand Ouest. Ainsi, cette étude évalue les bénéfices environnementaux associés à la production d’éco-aliments, c’est-à-dire d’aliments avec des impacts environnementaux réduits. Une base de données a été créée sur les impacts environnementaux de 150 intrants alimentaires du bétail calculés par Analyse de Cycle de Vie. Ces données ont été mobilisées dans une fonction multiobjectif pour formuler les aliments en prenant en compte des critères environnementaux en plus du critère prix habituel. Des bénéfices environnementaux et des coûts liés à ces éco-aliments ont été obtenus pour différentes stratégies alimentaires de porc à l’engrais, de poulet de chair, de vaches laitières et de jeunes bovins, à la tonne d’aliment et au kilogramme de produit. Une mise en œuvre à l’échelle du Grand Ouest considérant tous les aliments composés fabriqués et toutes les filières animales montre, à la tonne d’aliment moyen, une réduction possible du changement climatique de 7% pour un surcoût de 2%.Feeding is central for the environmental aspects of animal production. For pig and poultry, feeds explain between 50 and 98% of the environmental impacts of animal product at farm gate. For cattle, the concentrated feeds account for 17% of the 12.3 million tons of compound feeds produced in the West of [br/] France. This study looked at the environmental benefit of eco-feeds which are feeds with lower environmental impacts. A database was built concerning the environmental impacts of 150 feedstuffs calculated by Life Cycle Assessment. Those data were used in a multiobjective function in order to formulate feed with environmental criteria and the usual cost criteria. The environmental benefits and the costs due to eco-feed were obtained for different feeding strategies of fattening pigs, broilers, dairy cows and young cattle at the scale of the ton of feed and the kilogram of animal product. An implementation at territory scale was also performed in the West of France by considering all the feeds and the animal productions: the results showed for instance a possible reduction of 7% for the impact climate change of the average ton of compound feed for an extra cost of 2%

La base de données ELFE : vers une meilleure connaissance des émissions gazeuses liées à l’élevage

National audienceThe increasing demand for animal products is a major challenge for the livestock sector that must reduce its environmental impacts and ensure its sustainability. This sector has been identified as an important contributor to polluting gas emissions. Improving the knowledge on the origin and the magnitude of air pollutants and greenhouse gases emissions from livestock sector is essential to address climate change and to contribute to improve air quality with the evolution of breeding practices (feeding strategy, manure management, etc.). A consortium involving research and extension services partners was created to build a database called ELFE (ELevages et Facteurs d’Emission) with international data from literature references focusing on emissions of ammonia, greenhouse gases, particles and odors on the different steps of manure management of cattle, pig and poultry productions systems and their associated key variables. Around 350 publications (among 1 000 publications collected) are integrated into the database and provide more than 5 200 emission values. The ELFE database allows calculating average of emission and their standard deviation taking into account the diversity of livestock systems. These data can be used to provide emission factor for national inventories for specific livestock systems and also, to evaluate practices on gas emissions mitigation. This database can also be used to analyze the influence of key variables on the emission factor variability using multicriteria assessment (climate, building type, etc.). Moreover, this database propose a classification of emission factor into three classes according to the degree on which information about their most influential key variables was complete (>50 % ; 30-50 % ; 50 % ; 30-50 % ; <30 % des métadonnées renseignées) afin d’évaluer son niveau de description

Une base de données pour caractériser les émissions gazeuses

Improving the knowledge on the magnitude and origin of gaseous emissions from livestock sector is essential toreduce emissions, to meet the societal requirement and to setup regulations at national and European levels. Aconsortium involving research (Inra, Irstea) and technical development (Ifip, Itavi, Idele, CRAB, Terres Innovia,Arvalis) was created to setup a robust database (ELFE) on (inter)national literature references on gaseousemissions of poultry, herbivore, pork productions and related indicators. With help of the database ELFE, weaim to determine emission factors (EF) for NH3, GHG, odors and particles per technical itinerary, in order tointegrate different steps of animal and manure management (i.e. building, manure storage and treatment,spreading and pastures) in the estimations of livestock emissions. Building the structure of the database was thefirst step of this project. Further on, national and international literature data has been integrated in the database.The next steps concentrate on data analysis to determine average EF’s per itinerary and EF-variability due tometadata (i.e. animal type, climate, diet, duration, storage type...). Outcomes will be published in scientificjournals but also made available for stakeholders as guidance document (i.e. fact sheets, technical reports).L’amélioration des connaissances relatives aux émissions d’ammoniac et de GES du secteur de l’élevage estindispensable afin de réduire son impact environnemental et ainsi répondre aux exigences sociétales etréglementaires au niveau national et Européen. Un consortium regroupant des acteurs de la recherche (Inra,Irstea) et du développement (Ifip, Itavi, Idele, CRAB, Terres Inovia, Arvalis) s’est créé pour mutualiser lesréférences relatives aux émissions gazeuses des élevages de volailles, d’herbivores et de porcs dans une base de données intitulée ELFE (ELevages et Facteurs d’Emission). Son objectif principal est de produire des facteursd’émissions (FE) NH3, GES, odeurs et particules par itinéraire technique en intégrant les différents postesd’émissions (bâtiment, stockage, traitement, épandage et pâturage). La première étape du projet a été d’établir lastructure de la base pour intégrer les données d’émissions publiées et les métadonnées associées pouvantexpliquer leur variabilité. La seconde étape est l’alimentation de cette base à partir des références disponiblesdans la littérature internationale. L’étape suivante concerne leurs analyses en vue de calculer des FE moyens paritinéraire technique, mais aussi d’étudier l’influence des métadonnées sur leurs variabilités. La diffusion desrésultats sera réalisée sous forme de publications scientifiques mais aussi sous forme d’un guide qui seralargement diffusé auprès des acteurs des filières animales

Elfe. Une base de données pour caractériser les émissions gazeuses

In France, 70% of ammonia and 18% of greenhouse gas (GHG) originate from the livestock sector. Thus, improving knowledge on the magnitude and origin of gaseous emissions is essential to reduce them, and then meet societal requirements and setup regulations at national and European levels. A consortium involving research (Inra, Irstea) and technical development (Ifip, Itavi, Idele, CRAB, Terres Innovia, Arvalis) was created to implement a robust database (ELFE) gathering (inter)national literature references on gaseous emissions of poultry, pork, herbivore productions and related indicators. With the help of the database ELFE, we aim to determine emission factors (EF) for NH3, GHG, particles and odors in various technical itineraries integrating the different steps of animal and manure management (i.e. building, manure storage and treatment, spreading and pasture). Building the structure of the database was the first step of this project financed by the French Agency of the Environment and the Control of Energy (ADEME). Further on, national and international literature data were integrated into the database. At the moment, around 1,000 publications are recorded, essentially focusing on NH3 and GHG emissions. The next steps concentrate on data analysis to determine average EF’s per itinerary and EF-variability due to metadata (i.e. animal type, climate, diet, duration, storage type...). Outcomes will be published in scientific journals but also made available for stakeholders as guidance documents (i.e. fact sheets, technical reports). The purpose of these documents is to advise agricultural consultants and authorities on ways of reducing emissions and improving air quality in livestock production systems