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Academic literature on the topic 'Porcs – Fumier – Manutention'
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Dissertations / Theses on the topic "Porcs – Fumier – Manutention"
Belzile, Martin. "Bilan de masse de différents systèmes de séparation des fractions solide et liquide des déjections porcines directement sous les lattes." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24942/24942.pdf.
Full textSingh, Parminder. "Optimisation des processus de séparation de matière sèche à partir du lisier de porc en ajoutant du biochar." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29264/29264.pdf.
Full textLachance, Isabelle. "Effets de la séparation des déjections porcines sous les planchers lattés sur les émissions gazeuses et d'odeurs." Thesis, Université Laval, 2005. http://www.theses.ulaval.ca/2005/22978/22978.pdf.
Full textLiterature has shown separating urine from feces and frequently removing both fractions is suitable for diminishing gas and odor emissions from pig building. On average, under-slat separation systems in piggeries can reduce ammonia and odor emissions by up to 50%. The focus of the present research study was to assess, in the same experimental design, the effect of diverse manure handling systems on various aspects relative to air quality. Twelve identical and completely independent experimental rooms were built. Each room housed four grower-finisher pigs from 30 to 80 kg over two 8-week period trials. Five treatments, of which three separation systems (V-shaped scraper, net, belt) were tested simultaneously. The scraping frequency and the effectiveness of the separation process were evaluated. Results showed there was a significant effect of the treatment on ammonia emissions (p=0.02). Without the solid-liquid separation, removing the manure every 2-3 days significantly reduced ammonia emissions by 46% (52.7 mg day-1 kgpig-1) compared to the control. Within a storage period of 2-3 days, the separation of the urine and feces directly under slats allowed a significant 49% (50.0 mg day-1 kgpig-1) reduction of ammonia emissions compared to the control. The different separation systems had the same ammonia reduction capacity. Results revealed there is no advantage at a statistically significant level (P>0.05) for the separation process not for the removal frequency on carbon dioxide and methane emissions, within a week period. For the same period, it was not beneficial at a statistically significant level (P>0.05) to separate excrement and urine directly under slats for reducing odor releases. Manure handling systems did not have an effect on the hedonic tone.
Portejoie, Stéphanie. "Volatisation ammoniacale lors du stockage et à l'épandage de lisiers de porc : impact des apports protéiques, de l'utilisation de couvertures de fosse et d'additifs." Perpignan, 2002. http://www.theses.fr/2002PERP0468.
Full textThis aim of this work was to evaluate the effect of different ammonia reducing techniques during storage and surface application in the field. For each experiment, measurements of ammonia emission were made in a laboratory system during storage and in the field during surface application of slurry. Lowering dietary crute protein from 20 to 12% reduced nitrogen excretion and pH. This consequently reduced ammonia emissions by 63% over the whole process of the slurry Feed-Animals-Storage-Application. During storage, the covers reduced ammonia emission by retaining or by absorbing/adsording ammonia. Following surface application, ammonia emissions were higher from slurries stored with cover than without. Over the whole process studied Storage-Application, all the covers were effective in reducing ammonia emissions : by 40% by oil up to 71% by zeolites
Béline, Fabrice. "Etude des transferts d'azote par nitrification/dénitrification (N2, N2O, NH3) au cours du traitement aérobie et du stockage du lisier de porc. : essais avec 15N." Perpignan, 1998. http://www.theses.fr/1998PERP0323.
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