Guia per al compostatge en granja de dejeccions ramaderes

En un context actual en què els governs, les empreses, el sector agrari i la societat en general posen cada cop més atenció a la sostenibilitat, sembla rellevant posar èmfasi en aquelles actuacions que redueixin els residus, facin un millor ús dels recursos i que vetllin sobre una economia circular. En aquest sentit, el compostatge és considerat com un sistema de tractament aplicable a les dejeccions ramaderes que resulta senzill d’implementar i amb el qual s’obtenen productes de bona qualitat i alt valor per a l’agricultura. Aquesta guia recull informació pràctica sobre la implementació de compostatge a les explotacions ramaderes, amb exemples sobre cosubstrats que es poden utilitzar, característiques de les instal·lacions, així com experiències de compostatge en granja que ja es troben en funcionament.In a current context where governments, enterprises, the agrarian sector and the society are more interested to sustainability, it seems relevant to pay special attention to emphasize on actions that reduce waste generation, improve the resources efficiency and implement the circular economy. In that sense, composting is considered as a feasible manure treatment easy to implement and which offers a final product with high quality and value to the agriculture. This guide provides with practical information to install composting treatments at livestock farms, by including examples of co-substrates materials, installations characteristics, as well as real experiences of farm composting which are already operative.info:eu-repo/semantics/publishedVersio

The evolution of the ventilatory ratio is a prognostic factor in mechanically ventilated COVID-19 ARDS patients

Background: Mortality due to COVID-19 is high, especially in patients requiring mechanical ventilation. The purpose of the study is to investigate associations between mortality and variables measured during the first three days of mechanical ventilation in patients with COVID-19 intubated at ICU admission. Methods: Multicenter, observational, cohort study includes consecutive patients with COVID-19 admitted to 44 Spanish ICUs between February 25 and July 31, 2020, who required intubation at ICU admission and mechanical ventilation for more than three days. We collected demographic and clinical data prior to admission; information about clinical evolution at days 1 and 3 of mechanical ventilation; and outcomes. Results: Of the 2,095 patients with COVID-19 admitted to the ICU, 1,118 (53.3%) were intubated at day 1 and remained under mechanical ventilation at day three. From days 1 to 3, PaO2/FiO2 increased from 115.6 [80.0-171.2] to 180.0 [135.4-227.9] mmHg and the ventilatory ratio from 1.73 [1.33-2.25] to 1.96 [1.61-2.40]. In-hospital mortality was 38.7%. A higher increase between ICU admission and day 3 in the ventilatory ratio (OR 1.04 [CI 1.01-1.07], p = 0.030) and creatinine levels (OR 1.05 [CI 1.01-1.09], p = 0.005) and a lower increase in platelet counts (OR 0.96 [CI 0.93-1.00], p = 0.037) were independently associated with a higher risk of death. No association between mortality and the PaO2/FiO2 variation was observed (OR 0.99 [CI 0.95 to 1.02], p = 0.47). Conclusions: Higher ventilatory ratio and its increase at day 3 is associated with mortality in patients with COVID-19 receiving mechanical ventilation at ICU admission. No association was found in the PaO2/FiO2 variation

La valorització de les dejeccions ramaderes i els residus orgànics

info:eu-repo/semantics/publishedVersio