Person: Fuente Vázquez, Jesús De La
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First Name
Jesús De La
Last Name
Fuente Vázquez
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Veterinaria
Department
Producción Animal
Area
Producción Animal
Identifiers
9 results
Search Results
Now showing 1 - 9 of 9
Item Effect of ice stunning versus electronarcosis on stress response and flesh quality of rainbow trout(Aquaculture, 2021) Bermejo Poza, Rubén; Fuente Vázquez, Jesús De La; González De Chávarri Echániz, Elisabeth; Díaz Díaz Chirón, María Teresa; Fernández-Muela Garrote, Montserrat; Pérez, Concepción; Torrent, Fernando; Villarroel, Morris; Fuente Vázquez, Jesús De LaIn recent years, concerns about fish welfare have increased in aquaculture, most pointedly regarding the slaughter process. Immersion in ice water (live chilling) is still commonly used as a stunning method in salmonids, but can have negative effects on the stress response and flesh quality. A valid alternative is electronarcosis, but the specific details of the intensity and frequency of the current applied depend on the species and size, and little is known about how that may affect fish welfare or product quality. In this study, adult rainbow trout (294 ± 8.44 g average weight) were subjected to three different stunning methods before slaughter: immersion in ice water and electronarcosis at two different current intensities (200 or 400 mA). Electronarcosis caused fish to lose consciousness faster than those live chilled. Plasma concentration of cortisol was lower in fish stunned with 400 mA (400 mA: 5.2 ± 0.67 vs. Ice: 9.1 ± 0.90; 200 mA: 9.3 ± 1.20 ng/ml). Creatine-phosphokinase enzyme levels were higher in ice stunned fish compared to electronarcosis (Ice: 168 ± 2.32 vs. 200 mA: 114 ± 0.89; 400 mA: 104 ± 0.62 U/l). Regarding flesh quality, initial muscle pH was lower in fish stunned by ice immersion than by electronarcosis (Ice: 6.49 ± 0.034 vs. 200 mA: 6.76 ± 0.050; 400 mA: 6.61 ± 0.04), presenting also an earlier onset of rigor mortis. Fish stunned with 400 mA electronarcosis also presented higher levels of muscle glycogen than those stunned with ice water (0.181 ± 0.029 vs. 0.101 ± 0.013 mg/g). In conclusion, electronarcosis is a stunning method that can produce an immediate loss of consciousness in rainbow trout, reducing stress response before slaughter and improving flesh quality (with higher benefits using a current intensity of 400 mA), in contrast to immersion in ice water.Item Valorisation of an extract from olive oil waste as a natural antioxidant for reducing meat waste resulting from oxidative processes(Journal of Cleaner Production, 2017) Díaz Díaz Chirón, María Teresa; Lauzurica Gómez, María Ascensión Sara; Muíño, Iria; Apeleo, Elizabeth; Pérez-Santaescolástica, Cristina; Rivas-Cañedo, Ana; Pérez, Concepción; Cañeque, Vicente; Fuente Vázquez, Jesús De La; María Teresa Diaz Diaz ChirónSpain is the biggest olive oil producer in the world what means that this area is especially affected by olive mill waste pollution. The main system used for extracting olive oil is the continuous two-phase centrifugation system, which generates olive wet cake waste. This wastage has disposal problems due to its phytotoxicity and high moisture content, so strategies for its use and revalorization are needed. One of these strategies is the extraction of bioactive compounds, as is the case of polyphenols present in the waste, which could be used as natural antioxidants in food. This study evaluated the effect of adding an olive waste extract (100, 200 or 400 mg gallic acid equivalents/kg muscle), as a possible natural polyphenol-rich antioxidant on the stability of lamb meat patties enriched with omega-3 fatty acids, and stored in high-oxygen modified atmosphere packs for up to 9 days at 4 °C. Addition of the extract delayed meat discolouration, lipid oxidation (p ≤ 0.001) and protein carbonylation (p ≤ 0.001), and increased loss of thiol groups (p ≤ 0.05) relative to controls. Fish odour (p ≤ 0.01) and flavour (p ≤ 0.05) were lower and odd odour and flavour (p ≤ 0.001) higher in patties with added the extract compared to controls, but the overall liking score was not affected. The addition of the extract resulted in acceptable lamb meat patties (in terms of oxidation) after 6 days of storage, while patties without extract did not. The results pointed out the potential for using olive waste extracts as natural antioxidants in meat products. With this strategy, the olive oil industry would encourage to follow an eco-friendlier olive oil production chain obtaining marketable products from the wastes generated. At the same time, the shelf-life (in terms of oxidation process) of the lamb patties would be increased reducing food wastes at the point-of-sale and at consumer level, which is especially important in a high perishable food such as minced meat products, and reducing the environmental impact that food waste causes along the food supply chain.Item Using Underwater Currents as an Occupational Enrichment Method to Improve the Stress Status in Rainbow Trout(Fish Physiology and Biochemistry, 2023) Martinez-Villalba, Andrea; De la Llave-Propín, Alvaro; Fuente Vázquez, Jesús De La; Pérez Marcos, Concepción; González De Chávarri Echániz, Elisabeth; Díaz Díaz Chirón, María Teresa; Cabezas Albéniz, Almudena; González-Garoz, Roberto; Torrent, Fernando; Villarroel, Morris; Bermejo Poza, RubénThis study investigated the effects of occupational enrichment, specifically underwater currents, on the stress status of rainbow trout (Oncorhynchus mykiss). A total of 540 fish were divided into three groups: control tanks without artificial currents (CO), tanks with randomly fired underwater currents (RFC), and tanks with continuous current throughout the day (CT). After 30 days, half of the fish in each group underwent a 5-day pre-slaughter fasting (5D), while the others were fed until the day before slaughter (0D). Fish in the RFC group exhibited lower levels of plasma cortisol and acetylcholinesterase enzyme activity in hypothalamus and optic tract than other groups, suggesting an improved stress status. RFC group also showed higher levels of non-esterified fatty acids (NEFA) in 5D fish and higher liver glycogen stores, suggesting improved energy reserves. In comparison, the CT group had higher LDH levels, possibly due to their increased swimming activity. The CO group had significantly lower NEFA levels at 5D compared to the RFC group, suggesting lower energy reserves. The RFC fish had darker and yellow-reddish skin and liver color, suggesting an improved stress status and lower lipid reserves, respectively. Overall, although a significant stress response was not observed in fasted individuals, possibly due to the relatively short fasting period, the study suggests that providing occupational enrichment using randomly fired underwater currents for 1 month helped to improve stress status in rainbow trout, indicating that occupational enrichment during the grow-out phase can positively impact the welfare of rainbow trout during routine handling procedures.- Project number: 408
Item Tecnologías de la Información y la Comunicación (TIC) para la formación en cría y producción ovina(2021) Fuente Vázquez, Jesús De La; Díaz Díaz Chirón, María Teresa; Cabezas Albéniz, Almudena; Pérez Marcos, Concepción; González De Chávarri Echániz, Elisabeth; Lauzurica Gómez, María Ascensión Sara; Arribas García-Velasco, Pablo; Antoñanzas Fayos, Teresa; Rabanal Soto, Adrían; San Matías Álvarez, María; Díez Romera, Mariano; Martín Amores, RuthEl desarrollo de TIC para el aprendizaje de los alumnos es de suma importancia en la situación actual. Se pretende el desarrollo de material audiovisual para que la adquisición de las competencias en materia de manejo, cría y producción ovina. Item CUIDADO DE UN NÚCLEO DE GALLINAS EN PELIGRO DE EXTINCIÓN POR LOS ESTUDIANTES DEL DIPLOMA FORMATIVO UNIVERSITARIO LICEO-ESPECIALIDAD DE CUIDADO DE ANIMALES (GALLICEO)(2023) Ortega Moreno,Carlos; Fernandez de Lis, Gonzalo; de Águeda, Alejandra; Fuente Vázquez, Jesús De La; Díaz Díaz Chirón, María Teresa; Cabezas Albéniz, Almudena; Olivares Moreno, Álvaro; Pineda González, Stefania; Rebolé Garrigós, Almudena; González De Chávarri Echániz, Elisabeth; Ortiz Vera, Luis Tomás; Escudero Portugués, Rosa María; Bermejo Poza, Rubén; Viveros Montoro, Agustín; Arija Martín, Ignacio; Castro Madrigal, Teresa; Laviano Medina, Hernán Darío; García Álvarez, Andrés; Salazar Hijosa, Raúl; Martín Amores, Ruth; Díez Romera, Mariano; Bonel Ayuso, Diego Paul; Encinas Cerezo, María Teresa; Alcides Olivos-Oré, Luis; Arribas Blázquez, Marina; Gilabert Santos, Juan Antonio; Morón Elorza, Pablo; Manso Alonso, Teresa; de las Heras Molina,Ana; Isabel Redondo, BeatrizItem Environmental enrichment improves growthandfillet quality in rainbow trout(Journal of the Science of Food and Agriculture, 2024) De la Llave-Propín, Alvaro; Martínez Villalba, Andrea; Villarroel, Morris; Pérez Marcos, Concepción; González De Chávarri Echániz, Elisabeth; Díaz Díaz Chirón, María Teresa; Cabezas Albéniz, Almudena; González Garoz, Roberto; Fuente Vázquez, Jesús De La; Bermejo Poza, RubénBackground: Some environmental enrichment methods, such as occupational enrichment (OE), can improve fish growth, but little is known about its effects on fillet quality. In this study, we evaluated the effects of OE using underwater currents on different aspects of fillet quality and muscle metabolism in rainbow trout (Oncorhynchus mykiss), before and after a handling procedure (fasting). The trout were placed in groups of 30 in separate tanks in three treatments for 30 days: no artificial currents (CON), randomly fired underwater currents (RFC), and continuous underwater currents (CUC). Additionally, half of the individuals in each treatment were fasted (5 days, 45.2 °C days). Results: Slaughter weight, condition factor, and relative growth were lower in CON fish, indicating a positive effect of OE on growth. Rigor mortis, muscle pH, and muscle glycogen levels were similar among treatments, indicating no effect of OE on classical measures of fillet quality. However, significant differences were found regarding fillet colour and muscle enzymes. The fillets of RFC fish were more salmon-pink in colour, which is favoured by consumers. Also, activity levels of pyruvate kinase and glycogen phosphorylase in muscle were significantly higher in CUC fish, probably due to increased energy demands, as pumps were on continually in that treatment. Conclusion: Overall, RFC fish seemed to have received enough stimulation to improve growth while not being excessive in terms of exhausting the animals (avoiding negative effects on muscle metabolism), whereas OE may have provided a hormetic effect, allowing fish to better adjust to fasting. © 2023 Society of Chemical Industry.- Project number: 170
Item De la granja a la comercialización: Una estrategia de integración en Ciencia y Tecnología de los Alimentos (CYTA)(2022) Cambero Rodríguez, María Isabel; Isabel Redondo, Beatriz; Pérez Sen, Raquel; Olivares Moreno, Álvaro; Pérez Cabal, María De Los Ángeles; Fernández Álvarez, Leonides; Arroyo Pardo, Eduardo; Aguado Ramo, Juan Antonio; Aguilar Jaime, María Victoria; Alonso Monge, Rebeca María del Mar; Arias López, Patricia; Blanco Flores, María Dolores; Cabeza Briales, María Concepción; Cabezas Albéniz, Almudena; Calahorra Fernández, Felipe José; Cervantes Navarro, Isabel; Orozco Arias, David de; Díaz Díaz Chirón, María Teresa; Díez Romera, Mariano; Fernández Álvarez, Manuela; Ferreira García-Osorio, Andrea; Fuente Vázquez, Jesús De La; Gamonal Martos, Miriam; García Álvarez, Andrés; García De Fernando Minguillón, Gonzalo Doroteo; González Aguilera, Guillermo; González De Chávarri Echániz, Elisabeth; Herranz Hernández, María Beatriz; Justo Ruiz, Carolina; López Bote, Clemente José; López Parra, Ana María; Martín Amores, Ruth; Mateos Aparicio, Inmaculada; Monteoliva Díaz, Lucía; Orgaz Martín, Belén; Ortiz Vera, Luis Tomás; Radu Selea, Alexandra Andrea; Ramos Cervantes, Ana María; Rebolé Garrigós, Almudena; Rodríguez Fernández, Carmina; Rodríguez Peña, José Manuel; Salazar Hijosa, Raúl; Santos Arnaiz, Carlos; Santos López, Sergio; Sanz Gonzalez, Javier; Torrecilla Velasco, José Santiago; Velasco De Diego, Raquel; Velasco Villar, SusanaIntegración de la Granja Docente de Veterinaria en las actividades prácticas del Grado en Ciencia y Tecnología de los Alimentos; creación de una plataforma virtual como herramienta de coordinación de la producción-elaboración y comercialización de productos. Item Fasting combined with long catch duration modifies the physio-metabolic response and flesh quality of rainbow trout(Aquaculture Research, 2019) Bermejo Poza, Rubén; Villarroel, Morris; Pérez Marcos, Concepción; González De Chávarri Echániz, Elisabeth; Díaz Díaz Chirón, María Teresa; Torrent, Fernando; Fuente Vázquez, Jesús De LaPre-slaughter handling involves fasting fish and catching them, which can affect fish welfare and flesh quality, but few studies have considered their combined effects. In this study, adult rainbow trout (320 ± 10 g average weight) were fasted for 7 days (135.6 degree days) and subjected to a long catch duration (20 min), compared with controls (no fasting or short catch duration). Condition factor, organ weight indexes and carcass yield decreased with fasting but not catch duration. Plasma concentrations of cortisol, glucose and lactate increased after a long catch, while plasma triglycerides decreased with fasting. Liver glycogen concentration was lower in fasted fish, and liver luminosity and chroma were higher after fasting with a long catch. Regarding flesh quality, rigor mortis resolved more slowly and final muscle pH at 48 hr post-mortem was higher for fasted fish with a long catch time. Muscle glycogen concentration was higher in fasted fish, where chroma was also lower. Fasted fish had lower lipid oxidation, but there were no differences in fat content in muscle. Fasted fish with a long catch duration also had less monounsaturated and more saturated fatty acids. In conclusion, a long catch triggered a stress response that had negative effects on flesh quality, independently of fasting.- Project number: 192
Item Pinterest: Uso de redes sociales para el reconocimiento de capas de caballos y perros(2024) González De Chávarri Echániz, Elisabeth; Arias Álvarez, María; Bermejo Poza, Rubén; Fuente Vázquez, Jesús De La; Cabezas Albéniz, Almudena; Díaz Díaz Chirón, María Teresa; Fernández-Muela Garrote, Montserrat; González Garoz, Roberto; Huertas Vega, Víctor Manuel; Isabel Redondo, Beatriz; Martínez Villalba, Andrea; Olivares Moreno, Álvaro; Pérez Marcos, Concepción; Martín Amores, Ruth; Mallavia León, Blanca; Santacruz Parra, Marta; Fuentes Camacho, Beatriz; Blackledge Cordovilla, Natalia; Gil-Albert Abe, Nanami Andrea; Jiménez Ruiz, Elena; Escobar Fernández, Sofía Escobar; Díez Romera, Mariano