RT Journal Article
T1 Growth performance and flesh quality of tilapia (Oreochromis niloticus) fed low concentrations of Rubrivivax gelatinosus, Saccharomyces cerevisiae and Spirulina platensis
A1 Magnani Grassi, Thiago Luis
A1 Mingues Paiva, Natalia
A1 Oliveira, Dayse Licia
A1 Taniwaki, Fabio
A1 Cavazzana, Jefferson Felipe
A1 Rocha da Costa Camargo, Gisele Cristina
A1 Campos Pereira Diniz, Juliana
A1 Bermejo Poza, Rubén
A1 Borghesi, Ricardo
A1 Villarroel, Morris
A1 Giglio Ponsado, Elisa Helena
AB Saccharomyces cerevisiae biomass generated as a by-product in industrial processes and other biomasses grown in industry waste waters like Spirulina platensis and Rubrivivax gelatinous can be used in aquafeed, thus reducing the costs of discard and minimizing environmental damage. In this study, 840 male Nile tilapias (Oreochromis niloticus; 26.8 ± 1.03 g average weight) were distributed among 21 tanks (40 fish/tank, 1.07 kg/m3). Fish were fed to satiation three times a day throughout the trial (72 days). A completely randomized design experiment with 7 treatments (control group and 6 different diets, 3 replicates per treatment) was conducted to investigate the effects of these three microbial biomasses (added at 0.25 and 0.5% into an isoproteic/isoenergetic tilapia diet) on the growth and visceral indexes of the fish and on the composition and texture of the fillets. Feed conversion ratio was significantly lower in fish fed 0.5% R. gelatinosus than that in the control group, but no difference was detected among the treatments either for the other growth indicators or for the organs’ indexes. Including microbial biomass in the diet did not significantly affect either fillet pH or texture parameters. However, the use of microbial biomass increased the protein content and decreased the n-6/n-3 ratio of the fillets compared with that of the control group. So, it was concluded that the dietary intake of low concentrations of S. cerevisiae, S. platensis and R. gelatinosus biomasses did not affect the growth performance of tilapias, increased the nutritional quality and preserved the texture features of the fillets.
PB Springer
YR 2020
FD 2020-02-21
LK https://hdl.handle.net/20.500.14352/116453
UL https://hdl.handle.net/20.500.14352/116453
LA eng
NO Grassi, T.L.M., Paiva, N.M., Oliveira, D.L. et al. Growth performance and flesh quality of tilapia (Oreochromis niloticus) fed low concentrations of Rubrivivax gelatinosus, Saccharomyces cerevisiae and Spirulina platensis. Aquacult Int 28, 1305–1317 (2020). https://doi.org/10.1007/s10499-020-00527-y
NO Fundação de Amparo à Pesquisa do Estado de São Paulo (Brasil)
NO Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil)
DS Docta Complutense
RD 20 ene 2026