RT Journal Article
T1 Dietary Effects of a Short-Term Administration of Microalgae Blend on Growth Performance, Tissue Fatty Acids, and Predominant Intestinal Microbiota in Sparus aurata
A1 García-Márquez, Jorge
A1 Rico, Rosa Maria
A1 Acién-Fernández, Francisco Gabriel
A1 Mancera, Juan Miguel
A1 López-Figueroa, Félix
A1 Vizcaino, Antonio Jesús
A1 Alarcón López, Francisco Javier
A1 Moriñigo-Gutiérrez, Miguel Ángel
A1 Abdala-Díaz, Roberto Teófilo
K1 Microalgas
K1 Ácidos grasos
K1 Piscicultura
K1 Doradas - Alimentación
K1 Peces - Alimentación
AB Given the potential of microalgae as new aquafeed ingredients, this study focuses on using a blend of microalgae, Tisochrysis lutea, Nannochloropsis gaditana, and Scenedesmus almeriensis, as a dietary ingredient for feeding Sparus aurata juveniles. The growth performance, carcass composition, tissue fatty acid profile, and intestinal microbiota were evaluated after a 30 day-feeding period. A microalgae-free diet was used as control, and three experimental diets were formulated containing 5%, 15%, and 25% of the microalgae blend (MB-5%, MB-15%, and MB-25%, respectively). After 7, 15, and 30 days of feeding experimental diets, biological samples were taken. Growth performance and nutrient utilization were not significantly modified at the end of the experiment. Microalgae inclusion tended to decrease body lipids and affected the fatty acid profile, especially MB-25 diet increased DHA levels. Diet MB-25 promoted appropriate microbial diversity, favoring the presence of probiotic bacteria, such as Lactobacillus, and significantly influencing the fatty acid composition and lipid metabolism in fish. In conclusion, using a short pulse of dietary administration of 25% microalgal blend in S. aurata modulates the intestinal microbiota and lipid composition while maintaining growth performance
PB MDPI
YR 2023
FD 2023-02-12
LK https://hdl.handle.net/10630/26580
UL https://hdl.handle.net/10630/26580
LA eng
NO García-Márquez J, Rico RM, Acién FG, Mancera JM, Figueroa FL, Vizcaíno AJ, Alarcón FJ, Moriñigo MÁ, Abdala-Díaz RT. Dietary Effects of a Short-Term Administration of Microalgae Blend on Growth Performance, Tissue Fatty Acids, and Predominant Intestinal Microbiota in Sparus aurata. Microorganisms. 2023; 11(2):463. https://doi.org/10.3390/microorganisms11020463
NO Funding for open access charge: Universidad de Málaga
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026