19 documents found, page 1 of 2
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...
Modulation of dietary protein to lipid ratios for gilthead seabream on-growing ...
Aragão, Cláudia; Cabano, Miguel; Colen, R.; Teodósio, Rita; Gisbert, Enric; Dias, Jorge; Engrola, SofiaGilthead seabream (Sparus aurata) tend to increase fat deposition during summer farming conditions in the Mediterranean, which may negatively affect productive performance and consumers' quality perception of the final product. Therefore, this study evaluated the impacts of protein to lipid ratios in low fishmeal/fish oil diets on growth performance, body composition, feed conversion and nutrient utilization of...
Multibiomarker approach to fipronil exposure in the fish Dicentrarchus labrax u...
Dallares, Sara; Dourado, Priscila [UNESP]; Sanahuja, Ignasi; Solovyev, Mikhail; Gisbert, Enric; Montemurro, Nicola; Torreblanca, AmparoMade available in DSpace on 2020-12-10T17:06:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-02-01; Spanish Ministry of Economy, Industry and Competivity; Catalonian Government (Excellence Research Groups); Spanish Ministry of Science Innovation and Universities; Fipronil is a phenylpyrazole insecticide widely used to control pests in agriculture even though evidence of harmful side effects in non-tar...
Invasion genetics of the mummichog (Fundulus heteroclitus): recent anthropogeni...
Morim, Teófilo; Bigg, Grant R.; Madeira, Pedro M.; Palma, Jorge; Duvernell, David D.; Gisbert, Enric; Lopes Da Cunha, Regina; Castilho, RitaHuman activities such as trade and transport have increased considerably in the last decades, greatly facilitating the introduction and spread of non-native species at a global level. In the Iberian Peninsula, Fundulus heteroclitus, a small euryhaline coastal fish with short dispersal, was found for the first time in the mid-1970s. Since then, F. heteroclitus has undergone range expansions, colonizing the south...
Temperature responsiveness of gilthead sea bream bone; an in vitro and in vivo ...
Riera-Heredia, Natalia; Martins, Rute; Patricia Mateus, Ana; Costa, Rita; Gisbert, Enric; Navarro, Isabel; Gutierrez, Joaquim; Power, Deborah M.This study aimed to characterize the molecules involved in osteogenesis in seabream and establish using in vitro/in vivo approaches the responsiveness of selected key genes to temperature. The impact of a temperature drop from 23 to 13 degrees C was evaluated in juvenile fish thermally imprinted during embryogenesis. Both, in vitro/in vivo, Fib1a, appeared important in the first stages of bone formation, and Co...
Thermal imprinting modifies adult stress and innate immune responsiveness in th...
Mateus, Ana; A Costa, Rita; Cardoso, João CR; Andree, Karl B.; Estevez, Alicia; Gisbert, Enric; Power, DeborahThe impact of thermal imprinting on the plasticity of the hypothalamic-pituitary-interrenal (HPI) axis and stress response in an adult ectotherm, the gilthead sea bream (Sparus aurata, L.), during its development was assessed. Fish were reared under 4 thermal regimes, and the resulting adults exposed to acute confinement stress and plasma cortisol levels and genes of the HPI axis were monitored. Changes in immu...
Thermal imprinting modifies bone homeostasis in cold-challenged sea bream (Spar...
Mateus, Ana; Costa, Rita; Gisbert, Enric; PI Pinto, PPinto; Andree, Karl B.; Estevez, Alicia; Power, DeborahFish are ectotherms and temperature plays a determinant role in their physiology, biology and ecology, and is a driver of seasonal responses. The present study assessed how thermal imprinting during embryonic and larval stages modified the response of adult fish to low water temperature. We targeted the gilthead sea bream, which develops a condition known as winter syndrome when it is exposed to low water tempe...
Vitamin A affects flatfish development in a thyroid hormone signaling and metam...
Fernandez, Ignacio; Ortiz-Delgado, Juan B.; Darias, Maria J.; Hontoria, Francisco; Andree, Karl B.; Manchado, Manuel; Sarasquete, Carmen; Gisbert, EnricVitamin A (VA) and retinoid derivatives are known morphogens controlling vertebrate development. Despite the research effort conducted during the last decade, the precise mechanism of how VA induces post-natal bone changes, and particularly those operating through crosstalk with the thyroid hormones (THs) remain to be fully understood. Since effects and mechanisms seem to be dose and time-dependent, flatfish ar...
New developments and biological insights into the farming of Solea senegalensis...
Morais, Sofia; Aragão, C.; Cabrita, Elsa; Conceição, L. E. C.; Constenla, Maria; Costas, Benjamín; Dias, Jorge; Duncan, Neil; Engrola, S.Senegalese sole was one of the earliest identified candidate species with high potential for aquaculture diversification in the south of Europe. Its culture has been possible, and commercially attempted, for several decades, but intensive production has been slow to take off. This has been explained mostly by serious disease problems, high mortality at weaning, variable growth and poor juvenile quality. However...
Normal and histopathological organization of the opercular bone and vertebrae i...
Ortiz-Delgado, Juan B.; Fernández Monzón, Ignacio Valentín; Sarasquete, Carmen; Gisbert, EnricThis study provides a comprehensive description of the tissue organization of non-deformed and deformed opercula and vertebrae from gilthead sea bream Sparus aurata juveniles by means of histological, histochemical and immunohistochemical approaches. Two types of opercular anomalies are described: the folding of the opercle and subopercle into the gill chamber, starting at the upper corner of the branchial clef...