Finishing plant diet supplemented with microalgae meal increases the docosahexaenoic acid content in Colossoma macropomum flesh

Carlos Andre Amaringo Cortegano, Aline Marculino de Alcântara, Allana Feitoza da Silva, Cláudia Maiza Fernandes Epifânio, Sunique Poá Cordeiro Bentes, Vanessa Jorge dos Santos, Jesuí Vergílio Visentainer, Ligia Uribe Gonçalves

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

The need for a sustainable aquaculture is increasing the use of plant ingredients in replacement to fishmeal and fish oil in diets for tambaqui Colossoma macropomum, which is leading to not detectable levels of docosahexaenoic acid (DHA) in its flesh. We evaluated the effect of a finishing plant diet supplemented with 5% of microalgae meal from Schizochytrium sp. (MD) on tambaqui growth, on proximal composition and fatty acid content of its flesh, comparing it to a non-supplemented diet. One hundred and sixty-two fish (489.67 g) were distributed into six tanks (2,000 L) and fed the experimental diets for a 90-day period. Three fish per tank were euthanized for analyses every 15 days. The MD did not affect the growth and proximal composition of fish flesh. The MD increased the DHA content (from 14.81 to 38.60 mg/g of lipids) and the n-3:n-6 ratio (from 0.16 to 0.51) in the flesh of fish, beginning on the 15th day and reaching the highest DHA content on the 71st day (39.81 mg/g of lipids). We recommend C. macropomum to be fed with a finishing diet supplemented with microalgae meal for 71 days before slaughter to improve the DHA content and n-3:n-6 ratio in the flesh.

Idioma originalInglés
Páginas (desde-hasta)1291-1299
Número de páginas9
PublicaciónAquaculture Research
Volumen50
N.º4
DOI
EstadoPublicada - abr 2019

Nota bibliográfica

Publisher Copyright:
© 2019 John Wiley & Sons Ltd

Huella

Profundice en los temas de investigación de 'Finishing plant diet supplemented with microalgae meal increases the docosahexaenoic acid content in Colossoma macropomum flesh'. En conjunto forman una huella única.

Citar esto