Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange.
Autores:  VINATEA, L.
GÁLVEZ, A.O.
VENERO, J.
LEFFLER, J.
BROWDY, C.
Data:  2009-07-15
Ano:  2009
Palavras-chave:  Litopenaeus vannamei
High density
Microbial biofloc
Oxygen consumption
Raceway system
Alta densidade
Biofloc microbiano
Consumo de oxigênio
Sistema de fluxo contínuo
Resumo:  This work aimed at determining the dissolved oxygen consumption rate of Litopenaeus vannamei juveniles maintained in a microbial biofloc raceway system at high density with no aeration. Three 4 L bottles were filled for each treatment, sealed hermetically, and placed in an enclosed greenhouse raceway system. Four shrimp (13.2±1.42 g) were assigned to two sets of the bottles, which underwent the following treatments: light conditions with no shrimp; dark conditions with no shrimp; light conditions with shrimp; and dark conditions with shrimp. Dissolved oxygen content was measured every 10 min for 30 min. A quadratic behavior was observed in dissolved oxygen concentration over time. Significant differences for oxigen consumption were observed only at 10 and 20 min between shrimp maintained in the dark and those under light conditions. At 10 min, a higher value was observed in shrimp maintained under light, and at 20 min, in the dark. Significant differences between 10 and 20 min and between 10 and 30 min were observed when oxygen consumption was analyzed over time in the presence of light. Under dark conditions there were significant differences only between 20 and 30 min. Lethal oxygen concentration (0.65 mg L-1) would be reached in less than one hour either under light or dark conditions with no aeration.

2009
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  45915

http://www.alice.cnptia.embrapa.br/handle/doc/125883

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/106085/1/Oxygen-consumption.pdf
Editor:  Pesquisa Agropecuária Brasileira, Brasília, v.44, n. 5, p. 534-538, maio 2009.
Relação:  Área de Informação da Sede - Artigo em periódico indexado (ALICE)
Fechar
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional