18 documents found, page 1 of 2
Skin mucus and blood plasma as non-lethal sources of malnutrition protein bioma...
Oliveira, Joana; Raposo de Magalhães, Cláudia; Schrama, Denise; Rodrigues, Pedro M.; Barata, Marisa; Soares, Florbela; Pousão-Ferreira, PedroDeveloping dietary formulations for aquaculture that meet nutritional requirements is essential to production, as nutrition is key for fish growth and health. However, novel dietary formulations may induce malnutrition, which is complex to evaluate and often requires animal sacrifice. Therefore, finding reliable non-lethal biomarkers to diagnose malnutrition in fish is important. This study aimed to obtain vita...
Inactivation in vitro of the marine parasite Amyloodinium ocellatum
Sousa, Rui; Laizé, Vincent; Marques, Cátia Lourenço; Barata, Marisa; Ferreira, Pedro Pousão; Soares, FlorbelaThe ectoparasite Amyloodinium ocellatum is a dinoflagellate that causes severe morbidity and mortality in both brackish and marine warmwater aquaculture fishes worldwide. A. ocellatum has a triphasic life cycle based on a free-living flagellate (the dinospore), a parasitic stage (the trophont) and a resting and reproductive cyst (the tomont). Current chemical treatments have shown some efficacy in eliminating d...
Distinguishing the effects of Water volumes versus stocking densities on the sk...
Dellacqua, Zachary; Di Biagio, Claudia; Costa, Corrado; Pousão-Ferreira, Pedro; Ribeiro, Laura; Barata, Marisa; Gavaia, Paulo; Mattei, FrancescoGilthead seabream (Sparus aurata) production is a highly valued aquaculture industry in Europe. The presence of skeletal deformities in farmed gilthead seabream represents a major bottleneck for the industry leading to economic losses, negative impacts on the consumers’ perception of aquaculture, and animal welfare issues for the fish. Although past work has primarily focused on the hatchery phase to reduce the...
Biofortified Diets Containing Algae and Selenised Yeast: Effects on Growth Perf...
Ferreira, Mariana; Ribeiro, Pedro C.; Ribeiro, Laura; Barata, Marisa; Domingues, Valentina F.; Sousa, Sara; Soares, Cristina; Marques, AlexandraEfforts have been made to find natural, highly nutritious alternatives to replace fish meal (FM) and fish oil (FO), which can simultaneously promote fish health and improve the nutritional quality of filets for human consumption. This study evaluated the impact of biofortified diets containing microalgae (as replacement for FM and FO), macroalgae (as natural source of iodine) and selenised yeast (organic source...
Plant‐based diets fed to juvenile meagre Argyrosomus regius with low methionine...
Saavedra, Margarida; Pereira, Teresa G.; Barata, Marisa; Aragão, Cláudia; Requeijo, Bárbara; Conceição, Luís E.C.; Pousão‐Ferreira, PedroMethionine and taurine are amino acids (AA) that are usually deficient when fish meal is replaced by plant proteins. In this study, three diets were tested in juvenile meagre (initial weight: 13.4 g) for 8 weeks. The D1 diet had 0.2% methionine and 1% taurine supplementation; the D2 and D3 diets had 0.6% methionine and 1% and 2% taurine supplementation, respectively. The results showed that meagre fed the D1 di...
Enriched feeds with iodine and selenium from natural and sustainable sources to...
Barbosa, Vera; Maulvault, Ana Luísa; Anacleto, Patrícia; Santosa, Marta; Mai, Mónica; Oliveira, Helena; Delgadoe, Inês; Coelho, Inês; Barata, MarisaDeveloping tailor-made fortified farmed fish is a promising solution to overcome nutritional deficiencies and increase consumer confidence in these products. This study evaluated the supplementation of three fortified diets with I-rich seaweed and selenised-yeast on essential and toxic elements levels in gilthead seabream (Sparus aurata) and common carp (Cyprinus carpio). Fortified diets resulted in increased I...
Sound production in the Meagre, Argyrosomus regius (Asso, 1801): intraspecific ...
Pereira, David; Vieira, Manuel; Pousão-Ferreira, Pedro; Candeias-Mendes, Ana; Barata, Marisa; Fonseca, Paulo; Amorim, Maria Clara PessoaMany fish taxa produce sound in voluntary and in disturbance contexts but information on the full acoustic repertoire is lacking for most species. Yet, this knowledge is critical to enable monitoring fish populations in nature through acoustic monitoring.
Sound production in the Meagre, Argyrosomus regius (Asso, 1801): intraspecific ...
Pereira, Beatriz P.; Vieira, Manuel; Pousão-Ferreira, Pedro; Candeias-Mendes, Ana; Barata, Marisa; Fonseca, Paulo; Amorim, Maria Clara P.Many fish taxa produce sound in voluntary and in disturbance contexts but information on the full acoustic repertoire is lacking for most species. Yet, this knowledge is critical to enable monitoring fish populations in nature through acoustic monitoring.
Sound production in the Meagre, Argyrosomus regius (Asso, 1801): intraspecific ...
Pereira, Beatriz P.; Vieira, Manuel; Pousão-Ferreira, Pedro; Candeias-Mendes, Ana; Barata, Marisa; Fonseca, Paulo J.; Amorim, Maria Clara P.Many fish taxa produce sound in voluntary and in disturbance contexts but information on the full acoustic repertoire is lacking for most species. Yet, this knowledge is critical to enable monitoring fish populations in nature through acoustic monitoring.
Taurine modulates protein turnover in several tissues of meagre juveniles
Matias, Ana Catarina; Dias, Jorge; Barata, Marisa; Araujo, Ravi Luna; Bragança, José; Pousao-Ferreira, PedroThis study aimed to evaluate the modulatory effect of dietary taurine supplementation on protein turnover of meagre juveniles fed semi-purified plant-based diets. For that purpose, fish (3.2 +/- 0.2 g) were fed with five isoproteic (61.2%), isolipidic (16.6%) and isoenergetic (21.9 kJ g(-1)) experimental diets supplemented with 0.5% (Tau0.5), 1% (Tau1), 1.5% (Tau1.5) and 2% (Tau2) taurine or not (Tau0) for 38 d...