Data/hora: 09/06/2024 09:38:55

Provedor de dados: | 45
País: | Brazil
Título: | Integrated multi-trophic culture of Nile tilapia (Oreochromis niloticus) and Amazon river prawn (Macrobrachium amazonicum) in brackish water
Autores: | Henry-Silva,G.G.; Maia,C.S.P.; Moura,R.S.T.; Bessa Junior,A.P.; Valenti,W.C.
Data: | 2015-02-01
Ano: | 2015
Palavras-chave: | Aquaculture; Sustainability; Polyculture.
Resumo: | The aim of this study was to assess the feasibility of integrated multi-trophic culture of Nile tilapia (Oreochromis niloticus) and Amazon River prawn (Macrobrachium amazonicum) in brackish water by evaluating its limnological characteristics and economic performance. The experiment was completely randomized with four treatments and four repetitions: control treatment with Nile tilapia only, stocked with 2 tilapias/m² (P2C0) and three integrated multi-trophic culture treatments stocked with 2 tilapias/m² and prawns at densities of 4, 8 and 16 prawns/m² (P2C04, P2C08 and P2C16, respectively). The limnological variables of temperature, pH, dissolved oxygen, turbidity, ammonia, orthophosphate and chlorophyll "a" were evaluated and throughout the experiment remained within the limits recommended for culture. The experiment lasted 150 days with monthly animal sampling. No significant differences were observed for total fish biomass or for fish and prawn total survival rates. However, prawn individual weight decreased as stocking density increased. Gross revenue was not significantly different between treatments, as well as profitability. The profitability was 40.1% (P2C0), 36.7% (P2C04), 41.2% (P2C08) and 50.1% (P2C16). It is concluded that although feasible from the view point of husbandry, the integrated multi-tropic culture of M. amazonicum and O. niloticus did not influence significantly profitability compared to the monoculture system.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000100265
Editor: | Universidade Federal de Minas Gerais, Escola de Veterinária
Relação: | 10.1590/1678-6788
Formato: | text/html
Fonte: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia  v.67 n.1 2015
Fonte: | info:eu-repo/semantics/openAccess