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	Provedor de dados ArchiMer (3) AgEcon (1) Autor Vandeputte, Marc (3) Aubin, J. (2) Besson, M. (2) De Boer, I. J. M. (2) Komen, H. (2) Van Arendonk, J A M (2) Aubin, Joel (1) Besson, Mathieu (1) Csapo, Zsolt (1) De Boer, I J M (1) Karpati, Laszlo (1) Komen, H (1) Poelman, M. (1) Quillet, E. (1) Quillet, Edwige (1) Van Arendonk, J. A. M. (1) Vancoillie, C. (1) Vanyi Arvane, Georgina (1) Mais... Palavra-chave Economic values (4) Fish farming (3) Thermal growth coefficient (2) Agribusiness (1) Agricultural and Food Policy (1) Bioeconomic model (1) Demand and Price Analysis (1) Environmental impacts (1) Farm Management (1) Feed conversion ratio (1) Food Consumption/Nutrition/Food Safety (1) Food Security and Poverty (1) Genetic improvement (1) Health Economics and Policy (1) Honey bees (1) Honey production (1) Pollination (1) Positive externality (1) Production Economics (1) Productivity Analysis (1) Mais... Tipo do documento Text (3) Conference Paper or Presentation (1) Ano 2016 (1) 2014 (2) 2010 (1) País France (3) United States (1) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Influence of water temperature on the economic value of growth rate in fish farming: The case of sea bass (Dicentrarchus labrax) cage farming in the Mediterranean ArchiMer Besson, M.; Vandeputte, Marc; Van Arendonk, J. A. M.; Aubin, J.; De Boer, I. J. M.; Quillet, E.; Komen, H.. In sea cage farming, fish are exposed to seasonal variations of water temperature, and these variations can differ from one location to another. A small increase in water temperature does not only stimulate growth of the fish (until an optimal level) but also lowers dissolved oxygen concentration in water. Dissolved oxygen may then become a rearing constraint during the production cycle if the oxygen requirement of fish is higher than the supply. The impact of this constraint on production parameters (stocking density of cages and/or batch rotation) and thus on economic profit of a farm will depend on both local thermal regime and growth potential of the fish. Increased growth is one of the most important traits in a breeding objective to increase... Tipo: Text Palavras-chave: Economic values; Bioeconomic model; Fish farming; Genetic improvement; Temperature; Thermal growth coefficient. Ano: 2016 URL: http://archimer.ifremer.fr/doc/00332/44361/43964.pdf Economic values of growth and feed efficiency for fish farming in recirculating aquaculture system with density and nitrogen output limitations: a case study with African catfish (Clarias gariepinus) ArchiMer Besson, M.; Komen, H.; Aubin, J.; De Boer, I. J. M.; Poelman, M.; Quillet, Edwige; Vancoillie, C.; Vandeputte, Marc; Van Arendonk, J A M. In fish farming, economic values (EV) of breeding goal traits are lacking, even though they are key parameters when defining selection objectives. The aim of this study was to develop a bioeconomic model to estimate EV of 2 traits representing production performances in fish farming: the thermal growth coefficient (TGC) and the feed conversion ratio (FCR). This approach was applied to a farm producing African catfish (Clarias gariepinus) in a recirculating aquaculture system (RAS). In the RAS, 2 factors could limit production level: the nitrogen treatment capacity of the biofilter or the fish density in rearing tanks at harvest. Profit calculation includes revenue from fish sales, cost of juveniles, cost of feed, cost of waste water treatment, and fixed... Tipo: Text Palavras-chave: Economic values; Feed conversion ratio; Fish farming; Recirculating aquaculture system; Selective breeding; Thermal growth coefficient. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00245/35593/34277.pdf Economic and Environmental Impacts of Improving Growth Rate and Feed Efficiency in Fish Farming Depend on Nitrogen and Density Limitation ArchiMer Besson, Mathieu; Komen, H; Vandeputte, Marc; Aubin, Joel; De Boer, I J M; Van Arendonk, J A M. The aim of fish breeding is to increase profit by producing faster growing fish with lower feed intake. However, little is known about the economic and environmental impacts of selective breeding programs for fish. We modelled a fish farm producing African catfish in a Recirculating Aquaculture System (RAS) to calculate economic values of growth rate and feed efficiency with production limited by fish density in rearing tanks and fish nitrogen emission. We also calculated “environmental values” with Life Cycle Assessment. The economic and environmental values of growth rate and feed efficiency depended on the limiting factor. When nitrogen was the limiting factor, economic and environmental values of growth rate were zero. But, on the other hand, feed... Tipo: Text Palavras-chave: Economic values; Environmental impacts; Fish farming. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00205/31641/30046.pdf Positiv externality of honey production AgEcon Vanyi Arvane, Georgina; Csapo, Zsolt; Karpati, Laszlo. Bee-keeping and honey production has a long history in Hungary. Honey is an important and healthy food of people and it can be consumed without any human processing. The honey production has important role, too. Some researchers say that if honey bee will extinct the humanity in the world would also extinct. It is true since plant pollination by honey bees is very important. It is confirmed by researchers’ studies that plant pollination by honey bees has significant positive external impacts on potential yields in orchards. Although the contribution of honey production to the GDP in Hungary is only a few per cent, other benefits play more important role. One of them is the positive external effect – mentioned above – and the other is the contribution to... Tipo: Conference Paper or Presentation Palavras-chave: Honey production; Honey bees; Pollination; Economic values; Positive externality; Agribusiness; Agricultural and Food Policy; Demand and Price Analysis; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Production Economics; Productivity Analysis. Ano: 2010 URL: http://purl.umn.edu/109313 Registros recuperados: 4 Primeira ... 1 ... Última

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