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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
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