Data/hora: 01/06/2024 15:09:06

Biblioteca(s): | Epagri-Sede.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | Internacional - B
Data corrente: | 15/01/2015
Data da última atualização: | 15/01/2015
Autoria: | TOLEDO, T. M.; SILVA, B. C.; VIEIRA, F. N.; MOURINO, J. L. P.; SEIFFERT, W. Q.
Título: | Effects of different dietary lipid levels and fatty acids profile in the culture of white shrimp Litopenaeus vannamei (Boone) in biofloc technology: water quality, biofloc composition, growth and health.
Ano de publicação: | 2014
Fonte/Imprenta: | Aquaculture Research, New Jersey, EUA, p. 1-11, 2014.
Série: | ISBN 1365-2109
Idioma: | Inglês
Conteúdo: | The objective of this study was to evaluate the influence of different dietary lipid and fatty acids on the nutritional value of bioflocs used as a feed,as well as shrimp performance and health. A total of 1800 Litopenaeus vannamei juveniles (2.87 0.01 g) were cultured in biofloc technology, with a density of 200 shrimp m2 , and fed with three isoproteic experimental diets at different lipid levels (85 g kg1 , 95 g kg1 and 105 g kg1 ); each treatment was performed in triplicate. After 61 days, no significant difference was observed (P > 0.05) among the water qualityparameters. For the shrimp performance, significant difference was observed (P = 0.011) among the values of survival, where treatments with lower lipid levels had higher survival (92.5  3.5% and 91.0 2.5%). Although there are significant differences in survival, no significant differences in the total haemocytes count (THC) were observed. For other growth performance, no differences were observed (P > 0.05). A positive correlation (r = 0.75) has been observed between the dietary oleic acid and bioflocs. The bioflocs howed ?long-chain? polyunsaturated fat acids (lcPUFA), especially arachidonic acid. The shrimp showed similar growth and stayed healthy at the end of the experimental period.
Palavras-Chave: | healthy; marine shrimp; nutritional value of biofloc; oils.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_35515.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (97754-1) - UPC - AP - DD -  -  -  - DIS