Luisa M.P. Valente
University of Porto
Fish mealFeed conversion ratioBiochemistryBiologyAquaculture
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Publications 174
#1Mónica CostaH-Index: 7
#2Benjamín CostasH-Index: 20
Last. Luisa M.P. ValenteH-Index: 33
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Abstract The aim of the present study was to evaluate: 1) the in vitro bactericidal and bacteriostatic activities of four selected marine hydrolysates, from anchovy or giant squid, against several fish pathogens, and 2) if the inclusion of 3% of those hydrolysates in a plant-protein-based diet could result in similar growth, feed efficiency, humoral immune status and haematological parameters of juvenile European seabass (Dicentrarchus labrax), compared to a fish meal-based diet, during an in vi...
#1Yangyang Gong (Chinese Academy of Fishery Sciences)H-Index: 3
#2Solveig L. Sørensen (Nord University)H-Index: 1
Last. Viswanath Kiron (Nord University)H-Index: 41
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Abstract Rigid cell walls of microalgae lower the digestibility and nutrient bioavailability in carnivorous fish. Extrusion is a thermo-mechanical process and a scalable technology that may break cell walls and improves nutrient utilization. It can be hypothesized that certain feed additives may further improve microalgae nutrient digestibility and feed utilization by fish. The aim of the current study was to investigate i) the effect of incorporation of 10% pre-extruded Nannochloropsis oceanica...
1 CitationsSource
#1Ana Basto (University of Porto)H-Index: 2
#2Elisabete MatosH-Index: 8
Last. Luisa M.P. Valente (University of Porto)H-Index: 33
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Abstract Apparent digestibility coefficients (ADCs) of five commercially available insect larvae meals, H. illucens (HI and HId), T. molitor (TM and TMd) and a locust meal (LM), obtained from different producers, were assessed in European sea bass (Dicentrarchus labrax) juveniles. Each experimental diet was obtained by replacing 20% of a commercial-based diet used as reference (DREF), with 1% of chromic oxide added, by a test ingredient. Each diet was fed to quadruplicate groups of fish (initial...
1 CitationsSource
#1Sónia BatistaH-Index: 9
#2Ricardo J. PereiraH-Index: 14
Last. Luisa M.P. ValenteH-Index: 33
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#1Kit Granby (DTU: Technical University of Denmark)H-Index: 29
#2Heidi Amlund (DTU: Technical University of Denmark)H-Index: 15
Last. Bodil Katrine Larsen (DTU: Technical University of Denmark)H-Index: 14
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Aquaculture production is demanding novel feed ingredients that reflect natural marine nutrient levels, that are also essential to humans. In this regard, biofortification through addition of iodine-rich sugar kelp in feed formulations was assessed in a 12 week rainbow trout trial. Yttrium inclusion in feed allowed determinations of apparent absorption coefficients of essential and potentially toxic elements and apparent digestibility coefficient of nutrients. E.g. apparent absorption coefficien...
1 CitationsSource
#1Mariana Ferreira (University of Porto)H-Index: 6
#2Bodil Katrine Larsen (DTU: Technical University of Denmark)H-Index: 14
Last. Isabel Cunha (University of Porto)H-Index: 15
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Abstract This study aimed to evaluate the impact of diets including increasing amounts (1, 2 and 4%) of an iodine-rich macroalgae, Saccharina latissima, on gene expression and fillet composition of commercial-sized rainbow trout. Liver and muscle expression of genes related to growth, iodine, oxidative stress, and lipid metabolism, and the fillet content of fatty acids, cholesterol, and vitamin D3 were assessed. The highest kelp inclusion led to lower final body weight and HSI, without significa...
#1Inês Campos (University of Porto)H-Index: 3
#2Luisa M.P. Valente (University of Porto)H-Index: 33
Last. Fausto Freire (UC: University of Coimbra)H-Index: 21
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Abstract This study presents an environmental life cycle assessment of poultry fat (PF), poultry by-product meal (PBM) and steam hydrolyzed feather meal (HF). These ingredients are obtained by rendering poultry by-products and can be used as valuable feedstuffs for the fish feed industry, displacing traditional fishmeal and fish oil, promoting a circular economy system by reducing waste, adding value to by-products of the poultry production and reintroducing them in the economy as high-value pro...
#1Carla S. SantosH-Index: 8
Last. Marta W. VasconcelosH-Index: 17
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Biological and vegetarian raw food products, in particular based on legume sprouts, are an increasing food trend, due to their improved nutritional value when compared to seeds. Herein, protein and mineral profiles were studied in 12 lentil varieties, with varieties Du Puy, Kleine Schwarze, Rosana, Flora, Grose Rote and Kleine Spaths II demonstrating the highest protein percentages. After sprouting, protein percentages increased significantly in 10 of the 12 varieties, with the highest increases...
#1José SoaresH-Index: 10
#2Teresa DeuchandeH-Index: 3
Last. Rafael ZasH-Index: 26
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In the current situation of a constant increase in the atmospheric CO2 concentration, there is a potential risk of decreased nutritional value and food crop quality. Therefore, selecting strong-responsive varieties to elevated CO2 (eCO2) conditions in terms of yield and nutritional quality is an important decision for improving crop productivity under future CO2 conditions. Using bean and soybean varieties of contrasting responses to eCO2 and different origins, we assessed the effects of eCO2 (8...
2 CitationsSource
#1Ana BastoH-Index: 2
Last. Luisa M.P. ValenteH-Index: 33
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Trabajo presentado en Aquaculture Europe 2019, celebrado en Berlin (Alemania), del 7 al 10 de octubre de 2019