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| Martins, C. I. M.; Eding, E. H.; Verdegem, M. C. J.; Heinsbroek, L. T. N.; Schneider, O.; Blancheton, Jean-paul; Roque D'Orbcastel, Emmanuelle; Verreth, J. A. J.. |
| The dual objective of sustainable aquaculture, i.e., to produce food while sustaining natural resources is achieved only when production systems with a minimum ecological impact are used. Recirculating aquaculture systems (RASs) provide opportunities to reduce water usage and to improve waste management and nutrient recycling. RAS makes intensive fish production compatible with environmental sustainability. This review aims to summarize the most recent developments within RAS that have contributed to the environmental sustainability of the European aquaculture sector. The review first shows the ongoing expansion of RAS production by species and country in Europe. Life cycle analysis showed that feed, fish production and waste and energy are the principal... |
| Tipo: Text |
Palavras-chave: Intensive systems; Ecological impact; Waste; Water re-use; Denitrification. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00021/13190/10273.pdf |
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| Fabricio,Edom de Avila; Pacheco,Paulo Santana; Vaz,Fabiano Nunes; Lemes,Daniel Batista; Camera,Angelina; Machado,Gabriella Ibarra Ocaña. |
| ABSTRACT: The objective of this study was to evaluate various financial indicators, estimated deterministically (considering historical quotes twelve consecutive years - 2003 to 2014), on the economic feasibility of finishing steers commercialized with different weights, using the simulation technique. Performance data steers were simulated with average initial weight of 350kg, fed in feedlot and slaughtered with 410, 440, 470, 500, 530, 560 and 590kg. The feeding period varies from 46 to 185 days, respectively. Based in various economic indicators, the viability of the investment decreased linearly according to the increase in slaughter weight. The coefficient of simple linear regression and means from lowest to highest slaughter weight were,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Economic analysis; Beef cattle; Investment projects; Intensive systems; Microeconomics. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300931 |
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