92 documents found, page 1 of 10
Performance, nutrient digestibility and physiological resilience of juvenile gi...
Mendes, Rodrigo; Teodósio, Rita; Dias, Jorge; Fachadas Gato Coelho Gonçalves, Ana Teresa; Galileu Speranza, Lais; Magalhães, Sara; Aires, TiagoAquafeeds formulated with organic or circular economy-derived ingredients aim to enhance sustainability and consumer acceptance. This study evaluated the global warming potential (GWP) and digestibility of such feeds, and assessed their effects on performance, feed utilisation and physiological resilience, defined as the ability to maintain tissue function and integrity under different feeding conditions of juv...
Unravelling the effects of extrusion and drying temperatures on the radical sca...
Pereira, Ricardo; Velasco, Cristina; Gómez-Garcia, Ricardo; Dias, Jorge; Pintado, Manuela; Valente, Luisa M. P.Antioxidant supplementation of aquafeeds with natural sources is a current research trend within the context of a circular economy. However, natural antioxidants are highly vulnerable to thermal conditions during feed manufacturing, particularly during extrusion and drying. This study examines the impact of extrusion and drying temperatures on the antioxidant properties of aquafeeds supplemented with natural an...
Socially acceptable feed formulations may impact the voluntary feed intake and ...
Mendes, Rodrigo; Rena, Paulo; Dias, Jorge; Fachadas Gato Coelho Gonçalves, Ana Teresa; Teodósio, Rita; Engrola, Sofia; Sánchez-Vázquez, Francisco J.Society is becoming more demanding with aquaculture’s environmental footprint and animal wellbeing. In order to potentially mitigate these concerns, feed formulations could be based on eco-efficient (circular economy-driven) or organic ingredients. This study aimed to investigate the growth performance, feed utilization, and health status of juvenile Nile tilapia (Oreochromis niloticus) when fed with such feeds...
Sustainable fish meal-free diets for gilthead sea bream (Sparus aurata): integr...
Fernandes, Ana M.; Calduch-Giner, Josep Àlvar; Pereira, Gabriella V.; Fachadas Gato Coelho Gonçalves, Ana Teresa; Dias, Jorge; Johansen, JohanThe growth of the aquaculture industry requires more sustainable and circular economy-driven aquafeed formulas. Thus, the goal of the present study was to assess in farmed gilthead sea bream (Sparus aurata L.) how different combinations of novel and conventional fish feed ingredients supported proper animal performance in terms of growth and physiological biomarkers of blood/liver/head kidney. A 77-day feeding ...
Strategy combining mammalian fats with supplementation of pungent spices in aqu...
Ruiz, Alberto; Gisbert, Enric; Estevez, Alicia; Reyes-López, Felipe E.; Vallejos-Vidal, Eva; Tort, Lluís; Dias, Jorge; Engrola, Sofia; Magalhães, SaraThe replacement of fish oil (FO) in aquafeeds usually leads to imbalances in the dietary content of n-3 and n-6 polyunsaturated fatty acids (PUFA), with negative consequences for fish performance, health, and fillet quality. Animal-rendered fats are an alternative lipid source high in saturated fatty acids, potentially sparing n-3 PUFA from oxidation, and with lower n-6 PUFA contents than plant-based oils, espe...
O papel do Ensino Superior e da investigação científica em Cabo Verde na concre...
Dias, Jorge; Conde, RitaResumo: A Agenda 2030 das Nações Unidas para o desenvolvimento sustentável estabelece diretrizes que visam o desenvolvimento económico, social e ambiental, a erradicação da pobreza e da desigualdade ao nível mundial. Requer uma participação colaborativa entre pessoas, instituições (públicas e privadas), Governos e Estados, tratando-se de uma Agenda universal que postula 17 Objetivos do Desenvolvimento Sustentáv...
Sustainable feed formulation to community‐based aquaculture: Oreochromis niloti...
Pires, Sílvia F. S.; Vital, Inês; Pereira, Vitória; Bustani, Henriques; Aragão, Cláudia; Engrola, Sofia; Cabano, Miguel; Dias, JorgeCommunity-based aquaculture can reduce dependence on natural resources, promote biodiversity conservation, and improve local economies and food security. However, this activity is highly dependent on local conditions regarding natural resources, such as the availability of produced organisms, adequate feeds, and environmental factors. As ectothermic organisms, fish are more susceptible to temperature fluctuatio...
Taurine supplementation to Plant-Based Diets improves lipid metabolism in Seneg...
Raquel Cêa de Aragão Teixeira, Cláudia; Teodósio, Rita; Colen, R.; Richard, Nadège; Rønnestad, Ivar; Dias, Jorge; Conceição, Luís E. C.; Ribeiro, LauraTaurine is a sulphur-containing amino acid with important physiological roles and a key compound for the synthesis of bile salts, which are essential for the emulsion and absorption of dietary lipids. This study aimed to evaluate the effects of taurine supplementation to low-fishmeal diets on the metabolism of taurine, bile acids, and lipids of Senegalese sole. A fishmeal (FM) and a plant-protein-based (PP0) di...
Physicochemical properties of iodine and selenium biofortified Sparus aurata an...
Barbosa, Vera; Camacho, Carolina; Oliveira, Helena; Anacleto, Patrícia; Maulvault, Ana Luisa; Delgado, Inês; Ventura, Marta; Dias, Jorge; Ribeiro, LauraFish biofortification with natural ingredients like iodine-rich macroalgae and selenized-yeast is an excellent strategy to enhance the nutritional quality of farmed fish. This study aimed to assess the effect of frozen storage during 12-months on physicochemical quality of biofortified seabream (Sparus aurata) and carp (Cyprinus carpio). Frozen storage reduced iodine content in biofortified seabream fillets (17...
Benchmarking Edge Computing Devices for Grape Bunches and Trunks Detection usin...
Magalhães, Sandro Costa; Santos, Filipe Neves; Machado, Pedro; Moreira, António Paulo; Dias, JorgePurpose: Visual perception enables robots to perceive the environment. Visual data is processed using computer vision algorithms that are usually time-expensive and require powerful devices to process the visual data in real-time, which is unfeasible for open-field robots with limited energy. This work benchmarks the performance of different heterogeneous platforms for object detection in real-time. This resear...