Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/6168
Título: Avaliação do desempenho do camarão Litopenaeus vannamei e das macroalgas Gracilaria birdiae e Ulva fasciata num sistema de cultivo multitrófico integrado
Autor: Raposo, Diogo Manuel Trindade
Orientador: Soriano, Eliane Marinho
Afonso, Fernando Ribeiro Alves
Palavras-chave: integrated multitrophic aquaculture
co-culture
Litopenaeus vannamei
Gracilaria birdiae
Ulva fasciata
bioremediation
Data de Defesa: 2013
Editora: ISA
Citação: Raposo, D.M.T. - Avaliação do desempenho do camarão Litopenaeus vannamei e das macroalgas Gracilaria birdiae e Ulva fasciata num sistema de cultivo multitrófico integrado. Lisboa: ISA, 2013, 80 p.
Resumo: The aquaculture is growing fast, responding to the increase of aquatic products demand. This growth requires sustainable practices. Taking advantages from the complementary functions of the organisms in the ecosystem, the bioremediation technology Integrated Multitrophic Aquaculture proposes to balance the abundance of organisms, avoiding the instability caused by the massive introduction of fed aquaculture. In this study, developed in the Rio Grande do Norte State (Brazil), juvenile shrimps Litopenaeus vannamei (2,78 g ± 0,29 initial weight) and seaweeds were co-cultured in exterior tanks (100 L), during four weeks. Three treatments were evaluated: shrimp monoculture, co-culture with Gracilaria birdiae e co-culture with Ulva fasciata (coUF). All experimental groups were fed with a commercial pellet, at a daily ration of 5% shrimp biomass. The organisms incorporated in the system were beneficed mutually. The two seaweeds used the residual nitrogen nutrients of the animal production for their growth, removing 95% of nitrite and nitrate. The water quality improved and the nutrients in the effluents decreased. The zootecnic performance was superior in coUF. The fresh Ulva complemented the animal nutrition and improved the specific growth rate in 40%.
Descrição: Mestrado em Engenharia Zootécnica - Produção Animal - Instituto Superior de Agronomia / Faculdade de Medicina Veterinária
URI: http://hdl.handle.net/10400.5/6168
Aparece nas colecções:BISA - Dissertações de Mestrado / Master Thesis

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