A5082957343- Aquaculture Nutrition and Growth
- Reproductive biology and impacts on aquatic species
- Algal biology and biofuel production
- Aquaculture disease management and microbiota
- Protein Hydrolysis and Bioactive Peptides
- Insect Utilization and Effects
- Aquatic life and conservation
- Meat and Animal Product Quality
- Marine and coastal plant biology
- Marine Bivalve and Aquaculture Studies
- Fish Biology and Ecology Studies
- Neurobiology and Insect Physiology Research
- Seaweed-derived Bioactive Compounds
- Cancer Research and Treatments
- Molecular Biology Techniques and Applications
- Animal and Plant Science Education
- Animal Nutrition and Physiology
University of Almería
2020-2024
The objectives of this study were to evaluate the in vitro protein hydrolysis five algae (Arthrospira sp., Chlorella Tisochrysis Microchloropsis sp. and Ulva rigida) by digestive proteases Scophthalmus maximus, assess effect feeding turbot juveniles on diets supplemented with these a 60-day trial. results revealed that algal was hydrolysed proteases. Besides, quantification total amino acids released during evidenced noticeable acid bioavailability, mainly case Arthrospira up 42.7% after 120...
Abstract The aim of this work was to evaluate two functional feeds for the gilthead seabream, Sparus aurata , containing low inclusion microalgae-based products (LB-GREENboost, LB Gb ; and LB-GUThealth, Gh ). Fish (12–13 g) were fed 13 weeks a control diet or one four diets supplemented with both at 0.5% 1%. did not affect specific growth rate survival, but increased feed efficiency by decreasing intake enlarging intestines. hepatosomatic index reduced cortisol levels in plasma, while...
In recent years, a clear emphasis has been placed on replacing fishmeal and fish oil in aquafeeds with other alternative ingredients, including algae, particularly low trophic omnivorous species. This work aimed at evaluating the effects of moderate dietary supplementation green microalga Chlorella fusca growth, metabolism, digestive functionality juvenile thick-lipped grey mullet ( Chelon labrosus ). Fish were fed control diet (CT) or containing 15% C. (C-15) biomass during 90 days. C-15...
This study aimed to evaluate the combined effect of dietary Chlorella fusca and ethanol-inactivated Vibrio proteolyticus DCF12.2 (C + V diet) in Chelon labrosus juveniles, highlighting their nutritional, physiological, morphological effects. The results showed that inclusion C. V. significantly enhanced growth performance feed utilization compared control group. C diet increased fish lipid quality index (FLQ), n-3 polyunsaturated fatty acids, n-3/n-6 ratio, which might be beneficial terms...
The increasing expansion of the invasive Asian alga Rugulopteryx okamurae along Andalusian coasts is a major challenge to marine biodiversity, and urgent coordinated measures are required for its removal or elimination. Among different actions, biotechnological valorisation could be strategy management alien biomass within frame Blue Economy. This work evaluates potential R. biomass, either raw processed by treatments based on enzymatic hydrolysis fermentation processes, used as dietary...
Abstract Numerous studies evaluating the effects of incorporation microalgae in feeds have reported favourable impacts on different physiological aspects aquacultured fish. Although productivity is major goal terms profitability fish farming, qualitative are gaining attention producers, given relevance quality attributes related to organoleptic parameters, proximal composition, and shelf life commercial value Indeed, acknowledged for their richness substances with potential positive all...
Microalgae are a source of diverse high-value compounds, such as carotenoids and fatty acids, which have potential application in aquafeeds. Some microalgae species present complex cell wall structures, make them poorly digestible, thus limiting their use feed ingredient. Consequently, applying extracted compounds to aquafeeds instead using the whole algal biomass is advantageous this expected increase bioavailability these nutrients. The aim study was evaluate effect dietary inclusion (2%)...
Currently, microalgae are used in fish diets, but their long-term growth effect is unknown. In this experiment, juvenile seabream specimens were fed with microalgae-enriched diets for three months, and then transferred to a microalgae-free diet 10 months assess effects up commercial size (≈27 cm ≈300 g). The contained Nannochloropsis gaditana at 2.5 or 5% inclusion levels, either raw (R2.5 R5 groups) cellulose-hydrolyzed (H2.5 H5 groups). body length weight measured 75 group−1 stage. size,...
This piece of research evaluates the presence protease inhibitors in macroalga Ulva ohnoi and provides an initial overview their mode action. The ability to inhibit digestive proteases three marine fish species, as well capacity hamper hydrolysis a reference protein by those proteases, were assessed. In addition, thermal stability inhibition on trypsin chymotrypsin also studied. Dose-response curves vitro assays revealed noticeable enzymes when concentration increased assay. treatment...
The thick-lipped grey mullet (
Abstract This work addresses the evaluation in vitro of different marine ( Dunaliella salina REC-0214B and Microchloropsis gaditana REC-0251B) freshwater Anabaena sp. BEA-0300B, Arthrospira platensis BEA-0007B, Chlorella vulgaris BEA-0753B, Spirogyra BEA-0666B) microalgae cyanobacteria as potential dietary ingredients aquafeeds. For this purpose, total protein content, amino acid composition, presence protease inhibitors were evaluated. In addition, bioaccessibility was estimated using a...
The aim of this research is to explore the potential effects two microalgae-based additives included in finishing feeds on quality and shelf-life seabream fillets. In a 41-day feeding trial, specimens were fed with experimental aquafeeds containing 10% bioactive supplements. These consisted blend Nannochloropsis gaditana Arthrospira platensis biomass, which was utilized as either raw (LB-CB) or enzymatically hydrolyzed (LB-CBplus). A control group received microalgae-free diet. results...
With the purpose of improving aquaculture sustainability, search for protein alternatives to fishmeal makes it necessary test different variables and possible repercussions new ingredients. The use insect meal as a source is well described, but complex composition meals (fat other components) can affect physiology fish. For this reason, part bigger study, aim current manuscript was diets based on three presentations coming from yellow mealworm (Tenebrio molitor): full fat, partially...
This study raises the question of potential long-term effects a feeding pulse with diets containing algal biomass on quality frozen turbot ( Scophthalmus maximus ) fillets. A trial was carried out this aim, in which juvenile were fed during 60 d six different experimental diets, two enriched macroalgae Ulva rigida (U diets), other microalgae blend (M plus non-supplemented control diet (CT), and finally, commercial aquafeed (COM). Two inclusion levels considered algae-enriched (50 100 g kg -1...
Aquaculture struggles with sustainability due to the use of fishmeal, and insects are one potential alternative. Insects have low long-chain omega−3 polyunsaturated fatty acid content, insect-fed fish reflect this in their composition. In total, 500 rainbow trout (Oncorhynchus mykiss, ~46 g) were fed until reached a commercial size (~415 g). Five diets used: control based on fishmeal as main source protein; two 50% replacement yellow mealworm meal (Tenebrio molitor), full-fat insect, another...
Previous studies have shown that Nannochloropsis gaditana can partially replace fishmeal in the diet of gilthead seabream, Sparus aurata. However, its effect on muscle growth is hardly known. This experiment was carried out with seabream adults were fed N. at two inclusion levels (2.5 or 5%) either raw (R2.5 and R5 groups) cellulose-hydrolyzed (H2.5 H5 for 45 days final fattening phase. The body length weight measured all fish beginning end experiment. Also, white transverse area (WM), size,...
Abstract Numerous studies evaluating the effects of incorporation microalgae in feeds have reported favourable impacts on different physiological aspects aquacultured fish. Although productivity is major goal terms profitability fish farming, however, qualitative are gaining attention producers, given relevance quality attributes related to organoleptic parameters, proximal composition, and shelf life commercial value Indeed, acknowledged for their richness substances with potential positive...