Villa-Arce, M.Á., L.T., Guzman-Villanueva, M.N., Vélez-Arellano, G., Hernández-Carmona, C.A., Godínez-Pérez, M., Contreras-Olguín, M., Muñoz-Ochoa & F.A., García-Domínguez (2022). Evaluation of the acceptability of diets formulated with hydrolyzed algae for juvenile abalone of Haliotis fulgens. Hidrobiológica. 32(3): 373-382.
Miguel Ángel Villa-Arce 1, Laura Teresa Guzman-Villanueva 2, Mónica Nurenskaya Vélez-Arellano 3, Gustavo Hernández-Carmona 4, Carlos Alonso Godínez-Pérez 5, Mauricio Contreras-Olguín 4, Mauricio Muñoz-Ochoa 4 y Federico Andrés García-Domínguez 4
Background. Abalones are aquaculture resources of greatimportance to the international food market. However, abalone cultivation faces a problem of foodavailability depending on the season, especially in Mexico. Goals. This study aimed to formulate diets for juvenileHaliotis fulgens from hydrolyzed algae. Methods. We evaluated thephysicochemical parameters of the diets and their acceptability to juveniles H. fulgens. Three diets were formulated from different algaespecies: 1) Macrocystis pyrifera (MP), 2) Eisenia arborea (EA) and 3) mixture of both algae (MPEA). The totalamount of hidrolyzed alga in each diet was 26%. Fresh E. arborea blades and the ABKELP commercial diet were usedas negative and positive control, respectively. Finally, the toughness, stabilityand acceptability of each diet were determined at 3, 6, 9,12 and 24h. Results. The toughness and stability of allhydrolyzed algae diets were significantly different (p> 0.05) compared tothe those of positive and negative controls. The toughness of the MP, EA andMPEA diets ranged from 600-630 g cm, whereas that of the ABKELP diet wastougher (700 g cm-2) after 24 h. The stability of the formulateddiets was > 80%, while that of the ABKELP control reached 95% at 24 h.Overall ABKELP stability was significantly higher than those of the other diets(p < 0.01). The EA, MPEA, and ABKELP diets were more attractive to organismsthan fresh E. arborea, although no significant differences in food intake werepresent (p < 0.05). Conclusions. All formulated diets exhibitedphysicochemical and acceptability characteristics that are suitable for H.fulgens.
Palabras clave: Attractability; Eisenia arborea; food intake; green abalone; Macrocystis pyrifera
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