Data/hora: 11/06/2024 14:40:56

Provedor de dados: | 5
País: | France
Título: | Economic and Environmental Impacts of Improving Growth Rate and Feed Efficiency in Fish Farming Depend on Nitrogen and Density Limitation
Autores: | Besson, Mathieu; Komen, H; Vandeputte, Marc; Aubin, Joel; De Boer, I J M; Van Arendonk, J A M.
Data: | 2014-08
Ano: | 2014
Palavras-chave: | Economic values; Environmental impacts; Fish farming.
Resumo: | 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 efficiency always had positive economic and environmental values. Therefore, fish breeders may need to adapt their breeding objectives according to the limiting factor.
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/00205/31641/30046.pdf
Editor: | Proceedings of the 10th World Congress of Genetics Applied to Livestock Production, Vancouver, Canada, August 17-22, 2014
Relação: | http://archimer.ifremer.fr/doc/00205/31641/
Formato: | application/pdf