Anomalous top magnetic couplings

The real and imaginary parts of the one-loop electroweak contributions to the left and right tensorial anomalous couplings of the tbW vertex in the Standard Model (SM) are computed

Actores y mirones

La profunda transformación y reestructuración industrial y social de los últimos años permitió a los países industrializados modernizar y adaptar sus estructuras a ese nuevo sistema productivo

Analysis and Optimization of Multi-Winding Toroidal Inductors for Use in Multilayered Technologies

The aim of this paper is to compare the performance of planar toroidal inductors and circular spiral inductors in multilayered technologies, in terms of achievable inductance density. New multi-winding toroidal inductor geometry is proposed to cover as much of the integration area as possible with the component footprint. The optimization of planar multi-winding toroidal inductors in multilayered substrates is investigated theoretically, and closed formulae are derived for their inductances as a function of geometrical parameters for any given value of the number of windings in the coil. The model obtained is validated experimentally and through electromagnetic simulation. Comparing the inductance of multi-winding toroidal inductors and compact spiral inductors allows us to update previously reported selection rules for the most suitable topology that leads to the most compact design

Seasonal Variation of Ectosymbiotic Ciliates on Farmed and Wild Shrimps from Coastal Yucatan, Mexico

High levels of ciliate infestation can affect respiration, feed intake, and locomotion in farmed shrimps in the tropics. Information on seasonal variation of the infestation parameters of ciliates is scarce, but it would be useful for determining the suitability of preventive measures or therapeutic treatment if necessary. This study aimed to describe the prevalence and mean intensity of infestation (MII) of ciliates on wild native shrimps Penaeus (Farfantepenaeus) brasiliensis and P. (Farfantepenaeus) duorarum and farm-cultured juvenile shrimp Penaeus (Litopenaeus) vannamei over an annual cycle and to determine whether an association existed among physicochemical factors and infestation on cultured shrimp. The ectosymbiotic ciliates Acineta tuberosa, Epistylis sp., and Zoothamnium sp. infested both farmed and wild shrimps. Based on examination of 360 farmed specimens of P. vannamei (30 examined each month), the species with highest infestation were Epistylis sp., (prevalence range = 22 –100%; MII range = 13 ± 28 – 126 ± 124) and Zoothamnium sp. (0–87%; 0 – 144 ± 132). For both species, the highest values occurred during the rainy season. A total of 288 wild specimens of P. brasiliensis plus 120 of P. duorarum obtained during three recognized seasons—dry (February to May), rainy (June to September), and north-wind (October to January)—had ciliate infestations that were significantly lower than those from farmed shrimp. For P. brasiliensis, the ciliate species with the highest infestation values were Zoothamnium sp. (0–66%; 0.03 ± 0.2 – 66 ± 92), while on P. duorarum, were for Epistylis sp. (0–46%; 0 – 8 ± 16). Using multiple linear regression, we found significant relationships between stocking density, survival, temperature, turbidity, and intensity of infestation of the ciliates. However, the regression accounted for only 11–26% of the variance (R2), meaning that there are still other environmental and biological variables that should be included to increase the reliability of the model. Thus, the physicochemical conditions of the farm increase the probability of ciliate transmission, especially during the rainy season

Assessment of the adhesive capacity of asphalt binders in the aggregate-binder bonds by means of new methodology

The main goal of this study is to present a new methodology to characterize the adhesive capacity (cohesion and adhesion capacity) of asphalt binders by means of new mechanical parameters. This methodology is based on the Fenix test, a test recently developed in Spain. This method assesses the cracking resistance of the asphalt mixtures, and it has been adapted to characterize the bonding power of asphalt binders. The main parameters achieved with this procedure are related to the energy dissipated during the breaking between the asphalt binder and the aggregate, when these materials are subjected to tensile stress; essential parameters related to the adhesive capacity of asphalt binders. The results of an experimental stage are presented in this research, in which the proposed methodology has been applied to analyse the behaviour of the binder in the aggregate-binder matrix according to temperature variation and the effect of water and ageing; taking into account aggregates of the same origin and with a different shape pattern. The results show that the parameters achieved from this new methodology allows characterizing the adhesive capacity of asphalt binders in the different conditions assessed.Postprint (published version

Apparent digestibility and protein quality evaluation of selected feed ingredients in Seriola dumerili

This is the peer reviewed version of the following article: Tomas-Vidal, A., Monge-Ortiz, Raquel, Jover Cerda, Miguel, Martínez-Llorens, Silvia. (2019). Apparent digestibility and protein quality evaluation of selected feed ingredients in Seriola dumerili.Journal of the World Aquaculture Society, null. DOI: 10.1111/jwas.12597, which has been published in final form at http://doi.org/10.1111/jwas.12597. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.[EN] The apparent digestibility coefficients (ADCs) of dry matter, crude protein, crude lipid, and amino acids in fish, krill, squid, meat, defatted krill, soybean, wheat gluten, wheat, camilina, pea, sunflower, and fava bean meals were determined for juvenile Seriola dumerili. The results showed that the ADC of dry matter for yellowtail ranged from 57.7 to 87.2% for animal ingredients and from 42.2 to 82.2% for plant ingredients. An ADC of protein exceeding 90% was observed in fishmeal, while camilina meal and fava bean meal presented the lowest values. Pea meal presented the lowest lipid ADC (83.5%). The availabilities were generally higher in animal ingredients than those in vegetal ones. Except camilina and fava bean meal, the other ingredients appear to be favorable for S. dumerili diets, especially the ones from animal sources. Lower case chemical score values (minimum value from amino acid ratios [AARs]) were obtained in some vegetal ingredients (14¿18%), while the highest ones were observed in marine ingredients (69¿88%). According to Oser's Index, the most balanced protein for yellowtail with regard to essential amino acids was in krill, defatted krill, and fishmeal (92¿96%). So, animal sources are suitable as protein ingredients, but they could be enhanced through some essential amino acid supplementation.This project was financed by the “Ministerio de Ciencia e Innovación” (reference AGL2011-30547-C03).Tomas-Vidal, A.; Monge-Ortiz, R.; Jover Cerda, M.; Martínez-Llorens, S. (2019). Apparent digestibility and protein quality evaluation of selected feed ingredients in Seriola dumerili. Journal of the World Aquaculture Society. https://doi.org/10.1111/jwas.12597

Laccase/TEMPO-mediated bacterial cellulose functionalization: production of paper-silver nanoparticles composite with antimicrobial activity

Bacterial cellulose (BC) was functionalized applying the Laccase/TEMPO oxidative treatment, leading to a five-fold increase of the concentration of carboxyl groups. Paper produced with this cellulose showed improved mechanical properties while maintaining barrier function against water and greases as compared to paper produced with non-oxidized BC. Also, the negative charge provided by the carboxyl groups on functionalized BC was used to generate silver nanoparticles (AgNPs), obtaining a BC paper and Ag composite. The presence of AgNPs in the composites was validated by SEM, EDS and ICP analysis, showing spherical, uniformly sized particles stabilized in the BC nanofibers matrix. Additionally, antimicrobial property of composites containing AgNPs was tested. The results showed the strong antimicrobial activity of the composites against Gram-positive and Gram-negative bacteria and fungi. The generation of Ag nanoparticles in a matrix that combine the physical characteristics of the BC nanofibers with the stiffness and the mechanical properties of paper produced composites that may have applicability in technological and biomedical uses

Distribution of melanopsin positive neurons in pigmented and albino mice: evidence for melanopsin interneurons in the mouse retina.

Here we have studied the population of intrinsically photosensitive retinal ganglion cells (ipRGCs) in adult pigmented and albino mice. Our data show that although pigmented (C57Bl/6) and albino (Swiss) mice have a similar total number of ipRGCs, their distribution is slightly different: while in pigmented mice ipRGCs are more abundant in the temporal retina, in albinos the ipRGCs are more abundant in superior retina. In both strains, ipRGCs are located in the retinal periphery, in the areas of lower Brn3a(+)RGC density. Both strains also contain displaced ipRGCs (d-ipRGCs) in the inner nuclear layer (INL) that account for 14% of total ipRGCs in pigmented mice and 5% in albinos. Tracing from both superior colliculli shows that 98% (pigmented) and 97% (albino) of the total ipRGCs, become retrogradely labeled, while double immunodetection of melanopsin and Brn3a confirms that few ipRGCs express this transcription factor in mice. Rather surprisingly, application of a retrograde tracer to the optic nerve (ON) labels all ipRGCs, except for a sub-population of the d-ipRGCs (14% in pigmented and 28% in albino, respectively) and melanopsin positive cells residing in the ciliary marginal zone (CMZ) of the retina. In the CMZ, between 20% (pigmented) and 24% (albino) of the melanopsin positive cells are unlabeled by the tracer and we suggest that this may be because they fail to send an axon into the ON. As such, this study provides the first evidence for a population of melanopsin interneurons in the mammalian retina

Intestinal Explant Cultures from Gilthead Seabream (Sparus aurata, L.) Allowed the Determination of Mucosal Sensitivity to Bacterial Pathogens and the Impact of a Plant Protein Diet

[EN] The interaction between diet and intestinal health has been widely discussed, although in vivo approaches have reported limitations. The intestine explant culture system developed provides an advantage since it reduces the number of experimental fish and increases the time of incubation compared to similar methods, becoming a valuable tool in the study of the interactions between pathogenic bacteria, rearing conditions, or dietary components and fish gut immune response. The objective of this study was to determine the influence of the total substitution of fish meal by plants on the immune intestinal status of seabream using an ex vivo bacterial challenge. For this aim, two growth stages of fish were assayed (12 g): phase I (90 days), up to 68 g, and phase II (305 days), up to 250 g. Additionally, in phase II, the effects of long term and short term exposure (15 days) to a plant protein (PP) diet were determined. PP diet altered the mucosal immune homeostasis, the younger fish being more sensitive, and the intestine from fish fed short-term plant diets showed a higher immune response than with long-term feeding. Vibrio alginolyticus (V. alginolyticus) triggered the highest immune and inflammatory response, while COX-2 expression was significantly induced by Photobacterium damselae subsp. Piscicida (P. damselae subsp. Piscicida), showing a positive high correlation between the pro-inflammatory genes encoding interleukin 1 beta (IL1-beta), interleukin 6 (IL-6) and cyclooxygenase 2(COX-2).The research was supported by a grant financed by the Spanish Ministerio de Economia y Competitividad AGL2015-70487-P. and Generalitat Valenciana, IDIFEDER/2020/029 The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. It was additionally granted by Contrato Pre-doctoral para la Formacion de Profesorado Universitario from Subprogramas de Formacion y Movilidad within the Programa Estatal de Promocion del Talento y su Empleabilidad of the Ministerio de Educacion, Cultura y Deporte of Spain.Peñaranda, D.; Bäuerl, C.; Tomas-Vidal, A.; Jover Cerda, M.; Estruch, G.; Pérez Martínez, G.; Martínez-Llorens, S. (2020). Intestinal Explant Cultures from Gilthead Seabream (Sparus aurata, L.) Allowed the Determination of Mucosal Sensitivity to Bacterial Pathogens and the Impact of a Plant Protein Diet. International Journal of Molecular Sciences. 21(20):1-20. https://doi.org/10.3390/ijms21207584S1202120Minghetti, M., Drieschner, C., Bramaz, N., Schug, H., & Schirmer, K. (2017). A fish intestinal epithelial barrier model established from the rainbow trout (Oncorhynchus mykiss) cell line, RTgutGC. Cell Biology and Toxicology, 33(6), 539-555. doi:10.1007/s10565-017-9385-xGómez, G. D., & Balcázar, J. L. (2008). A review on the interactions between gut microbiota and innate immunity of fish: Table 1. FEMS Immunology & Medical Microbiology, 52(2), 145-154. doi:10.1111/j.1574-695x.2007.00343.xJose L Gonzalez Vecino, M. H. (2015). Probiotic and Pathogen Ex-vivo Exposure of Atlantic Salmon (Salmo Salar L.) Intestine from Fish Fed Four Different Protein Sources. Journal of Aquaculture Research & Development, 06(05). doi:10.4172/2155-9546.1000340Nematollahi, A., Decostere, A., Ducatelle, R., Haesebrouck, F., & Pasmans, F. (2005). Development of a gut perfusion model as an alternative to the use of live fish. Laboratory Animals, 39(2), 194-199. doi:10.1258/0023677053739710Lin, Y.-C., & Chen, J.-C. (2001). Acute toxicity of ammonia on Litopenaeus vannamei Boone juveniles at different salinity levels. Journal of Experimental Marine Biology and Ecology, 259(1), 109-119. doi:10.1016/s0022-0981(01)00227-1Nematollahi, A., Pasmans, F., Van den Broeck, W., Ducatelle, R., Haesebrouck, F., & Decostere, A. (2005). Association of Flavobacterium psychrophilum strains with intestinal explants of rainbow trout Oncorhynchus mykiss. Diseases of Aquatic Organisms, 67, 67-72. doi:10.3354/dao067067Harper, G. M., Monfort, M., & Saoud, I. P. (2011). An ex vivo approach to studying the interactions of probiotic Pediococcus acidilactici and Vibrio (Listonella) anguillarum in the anterior intestine of rainbow trout Oncorhynchus mykiss. Journal of Aquaculture Research & Development, s1. doi:10.4172/2155-9546.s1-004Løvmo Martinsen, L., Salma, W., Myklebust, R., Mayhew, T. M., & Ringø, E. (2011). Carnobacterium maltaromaticum vs. Vibrio (Listonella) anguillarum in the midgut of Atlantic cod (Gadus morhua L.): an ex vivo study. Aquaculture Research, 42(12), 1830-1839. doi:10.1111/j.1365-2109.2010.02784.xRen, P., Xu, L., Yang, Y., He, S., Liu, W., Ringø, E., & Zhou, Z. (2013). Lactobacillus planarum subsp. plantarum JCM 1149 vs. Aeromonas hydrophila NJ-1 in the anterior intestine and posterior intestine of hybrid tilapia Oreochromis niloticus ♀ × Oreochromis aureus ♂: An ex vivo study. Fish & Shellfish Immunology, 35(1), 146-153. doi:10.1016/j.fsi.2013.04.023Resau, J. H., Sakamoto, K., Cottrell, J. R., Hudson, E. A., & Meltzer, S. J. (1991). Explant organ culture: A review. Cytotechnology, 7(3), 137-149. doi:10.1007/bf00365924Dame, M. K., Bhagavathula, N., Mankey, C., DaSilva, M., Paruchuri, T., Aslam, M. N., & Varani, J. (2009). Human colon tissue in organ culture: preservation of normal and neoplastic characteristics. In Vitro Cellular & Developmental Biology - Animal, 46(2), 114-122. doi:10.1007/s11626-009-9247-9Bäuerl, C., Llopis, M., Antolín, M., Monedero, V., Mata, M., Zúñiga, M., … Pérez Martínez, G. (2012). Lactobacillus paracasei and Lactobacillus plantarum strains downregulate proinflammatory genes in an ex vivo system of cultured human colonic mucosa. Genes & Nutrition, 8(2), 165-180. doi:10.1007/s12263-012-0301-yMonge-Ortiz, R., Martínez-Llorens, S., Márquez, L., Moyano, F. J., Jover-Cerdá, M., & Tomás-Vidal, A. (2016). Potential use of high levels of vegetal proteins in diets for market-sized gilthead sea bream (Sparus aurata). Archives of Animal Nutrition, 70(2), 155-172. doi:10.1080/1745039x.2016.1141743Oliva-Teles, A. (2012). Nutrition and health of aquaculture fish. Journal of Fish Diseases, 35(2), 83-108. doi:10.1111/j.1365-2761.2011.01333.xMartínez-Llorens, S., Moñino, A. V., Tomás Vidal, A., Salvador, V. J. M., Pla Torres, M., & Jover Cerdá, M. (2007). Soybean meal as a protein source in gilthead sea bream (Sparus aurata L.) diets: effects on growth and nutrient utilization. Aquaculture Research, 38(1), 82-90. doi:10.1111/j.1365-2109.2006.01637.xMARTÍNEZ-LLORENS, S., VIDAL, A. T., GARCIA, I. J., TORRES, M. P., & CERDÁ, M. J. (2009). Optimum dietary soybean meal level for maximizing growth and nutrient utilization of on-growing gilthead sea bream (Sparus aurata). Aquaculture Nutrition, 15(3), 320-328. doi:10.1111/j.1365-2095.2008.00597.xKrogdahl, Å., Penn, M., Thorsen, J., Refstie, S., & Bakke, A. M. (2010). Important antinutrients in plant feedstuffs for aquaculture: an update on recent findings regarding responses in salmonids. Aquaculture Research, 41(3), 333-344. doi:10.1111/j.1365-2109.2009.02426.xKrogdahl, Å., Bakke-McKellep, A. M., & Baeverfjord, G. (2003). Effects of graded levels of standard soybean meal on intestinal structure, mucosal enzyme activities, and pancreatic response in Atlantic salmon (Salmo salarL.). Aquaculture Nutrition, 9(6), 361-371. doi:10.1046/j.1365-2095.2003.00264.xURÁN, P. A., SCHRAMA, J. W., JAAFARI, S., BAARDSEN, G., ROMBOUT, J. H. W. M., KOPPE, W., & VERRETH, J. A. J. (2009). Variation in commercial sources of soybean meal influences the severity of enteritis in Atlantic salmon (Salmo salarL.). Aquaculture Nutrition, 15(5), 492-499. doi:10.1111/j.1365-2095.2008.00615.xKokou, F., Sarropoulou, E., Cotou, E., Rigos, G., Henry, M., Alexis, M., & Kentouri, M. (2015). Effects of Fish Meal Replacement by a Soybean Protein on Growth, Histology, Selected Immune and Oxidative Status Markers of Gilthead Sea Bream, Sparus aurata. Journal of the World Aquaculture Society, 46(2), 115-128. doi:10.1111/jwas.12181Pereira, T. G., & Oliva-Teles, A. (2003). Evaluation of corn gluten meal as a protein source in diets for gilthead sea bream (Sparus aurata L.) juveniles. Aquaculture Research, 34(13), 1111-1117. doi:10.1046/j.1365-2109.2003.00909.xMartínez-Llorens, S., Baeza-Ariño, R., Nogales-Mérida, S., Jover-Cerdá, M., & Tomás-Vidal, A. (2012). Carob seed germ meal as a partial substitute in gilthead sea bream (Sparus aurata) diets: Amino acid retention, digestibility, gut and liver histology. Aquaculture, 338-341, 124-133. doi:10.1016/j.aquaculture.2012.01.029Sitjà-Bobadilla, A., Peña-Llopis, S., Gómez-Requeni, P., Médale, F., Kaushik, S., & Pérez-Sánchez, J. (2005). Effect of fish meal replacement by plant protein sources on non-specific defence mechanisms and oxidative stress in gilthead sea bream (Sparus aurata). Aquaculture, 249(1-4), 387-400. doi:10.1016/j.aquaculture.2005.03.031Estensoro, I., Ballester-Lozano, G., Benedito-Palos, L., Grammes, F., Martos-Sitcha, J. A., Mydland, L.-T., … Pérez-Sánchez, J. (2016). Dietary Butyrate Helps to Restore the Intestinal Status of a Marine Teleost (Sparus aurata) Fed Extreme Diets Low in Fish Meal and Fish Oil. PLOS ONE, 11(11), e0166564. doi:10.1371/journal.pone.0166564Kokou, F., Sarropoulou, E., Cotou, E., Kentouri, M., Alexis, M., & Rigos, G. (2017). Effects of graded dietary levels of soy protein concentrate supplemented with methionine and phosphate on the immune and antioxidant responses of gilthead sea bream ( Sparus aurata L.). Fish & Shellfish Immunology, 64, 111-121. doi:10.1016/j.fsi.2017.03.017Couso, N., Castro, R., Magariños, B., Obach, A., & Lamas, J. (2003). Effect of oral administration of glucans on the resistance of gilthead seabream to pasteurellosis. Aquaculture, 219(1-4), 99-109. doi:10.1016/s0044-8486(03)00019-xMauri, I., Romero, A., Acerete, L., MacKenzie, S., Roher, N., Callol, A., … Tort, L. (2011). Changes in complement responses in Gilthead seabream (Sparus aurata) and European seabass (Dicentrarchus labrax) under crowding stress, plus viral and bacterial challenges. Fish & Shellfish Immunology, 30(1), 182-188. doi:10.1016/j.fsi.2010.10.006Reyes-Becerril, M., López-Medina, T., Ascencio-Valle, F., & Esteban, M. Á. (2011). Immune response of gilthead seabream (Sparus aurata) following experimental infection with Aeromonas hydrophila. Fish & Shellfish Immunology. doi:10.1016/j.fsi.2011.07.006Piazzon, M. C., Galindo-Villegas, J., Pereiro, P., Estensoro, I., Calduch-Giner, J. A., Gómez-Casado, E., … Pérez-Sánchez, J. (2016). Differential Modulation of IgT and IgM upon Parasitic, Bacterial, Viral, and Dietary Challenges in a Perciform Fish. Frontiers in Immunology, 7. doi:10.3389/fimmu.2016.00637Monge-Ortiz, R., Tomás-Vidal, A., Gallardo-Álvarez, F. J., Estruch, G., Godoy-Olmos, S., Jover-Cerdá, M., & Martínez-Llorens, S. (2018). Partial and total replacement of fishmeal by a blend of animal and plant proteins in diets for Seriola dumerili : Effects on performance and nutrient efficiency. Aquaculture Nutrition, 24(4), 1163-1174. doi:10.1111/anu.12655Torrecillas, S., Caballero, M. J., Mompel, D., Montero, D., Zamorano, M. J., Robaina, L., … Izquierdo, M. (2017). Disease resistance and response against Vibrio anguillarum intestinal infection in European seabass ( Dicentrarchus labrax ) fed low fish meal and fish oil diets. Fish & Shellfish Immunology, 67, 302-311. doi:10.1016/j.fsi.2017.06.022Estruch, G., Collado, M. C., Peñaranda, D. S., Tomás Vidal, A., Jover Cerdá, M., Pérez Martínez, G., & Martinez-Llorens, S. (2015). Impact of Fishmeal Replacement in Diets for Gilthead Sea Bream (Sparus aurata) on the Gastrointestinal Microbiota Determined by Pyrosequencing the 16S rRNA Gene. PLOS ONE, 10(8), e0136389. doi:10.1371/journal.pone.0136389Estruch, G., Martínez-Llorens, S., Tomás-Vidal, A., Monge-Ortiz, R., Jover-Cerdá, M., Brown, P. B., & Peñaranda, D. S. (2020). Impact of high dietary plant protein with or without marine ingredients in gut mucosa proteome of gilthead seabream (Sparus aurata, L.). Journal of Proteomics, 216, 103672. doi:10.1016/j.jprot.2020.103672Estruch, G., Collado, M. C., Monge-Ortiz, R., Tomás-Vidal, A., Jover-Cerdá, M., Peñaranda, D. S., … Martínez-Llorens, S. (2018). Long-term feeding with high plant protein based diets in gilthead seabream (Sparus aurata, L.) leads to changes in the inflammatory and immune related gene expression at intestinal level. BMC Veterinary Research, 14(1). doi:10.1186/s12917-018-1626-6Evaluation of Prebiotic and Probiotic Effects on the Intestinal Gut Microbiota and Histology of Atlantic salmon (Salmo salar L.). (2011). Journal of Aquaculture Research & Development, s1. doi:10.4172/2155-9546.s1-009Løkka, G., & Koppang, E. O. (2016). Antigen sampling in the fish intestine. Developmental & Comparative Immunology, 64, 138-149. doi:10.1016/j.dci.2016.02.014Secombes, C. J., Wang, T., Hong, S., Peddie, S., Crampe, M., Laing, K. J., … Zou, J. (2001). Cytokines and innate immunity of fish. Developmental & Comparative Immunology, 25(8-9), 713-723. doi:10.1016/s0145-305x(01)00032-5Gomez, D., Sunyer, J. O., & Salinas, I. (2013). The mucosal immune system of fish: The evolution of tolerating commensals while fighting pathogens. Fish & Shellfish Immunology, 35(6), 1729-1739. doi:10.1016/j.fsi.2013.09.032Krogdahl, Bakke-Mckellep, RØed, & Baeverfjord. (2000). Feeding Atlantic salmonSalmo salarL. soybean products: effects on disease resistance (furunculosis), and lysozyme and IgM levels in the intestinal mucosa. Aquaculture Nutrition, 6(2), 77-84. doi:10.1046/j.1365-2095.2000.00129.xSalinas, I., Zhang, Y.-A., & Sunyer, J. O. (2011). Mucosal immunoglobulins and B cells of teleost fish. Developmental & Comparative Immunology, 35(12), 1346-1365. doi:10.1016/j.dci.2011.11.009Chasiotis, H., Effendi, J. C., & Kelly, S. P. (2008). Occludin expression in goldfish held in ion-poor water. Journal of Comparative Physiology B, 179(2), 145-154. doi:10.1007/s00360-008-0297-1Sánchez-Lozano, N. B., Martínez-Llorens, S., Tomás-Vidal, A., & Cerdá, M. J. (2009). Effect of high-level fish meal replacement by pea and rice concentrate protein on growth, nutrient utilization and fillet quality in gilthead seabream (Sparus aurata, L.). Aquaculture, 298(1-2), 83-89. doi:10.1016/j.aquaculture.2009.09.028Savan, R., & Sakai, M. (2006). Genomics of fish cytokines. Comparative Biochemistry and Physiology Part D: Genomics and Proteomics, 1(1), 89-101. doi:10.1016/j.cbd.2005.08.005Torrecillas, S., Montero, D., Caballero, M. J., Robaina, L., Zamorano, M. J., Sweetman, J., & Izquierdo, M. (2015). Effects of dietary concentrated mannan oligosaccharides supplementation on growth, gut mucosal immune system and liver lipid metabolism of European sea bass (Dicentrarchus labrax) juveniles. Fish & Shellfish Immunology, 42(2), 508-516. doi:10.1016/j.fsi.2014.11.033Kono, T., Bird, S., Sonoda, K., Savan, R., Secombes, C. J., & Sakai, M. (2008). Characterization and expression analysis of an interleukin-7 homologue in the Japanese pufferfish, Takifugu rubripes. 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Evaluation of soybean meal as protein source for Argyrosomus Regius (Asso, 1801) (Sciaenidae)

[EN] The meagre (Argyrosomus regius) is a carnivorous fish which requires diets with higher protein content, causing an increment in diets cost. A way to diminish this cost is to use vegetable meals like soybean meal (SB). So the aim of this trial was to determine the optimum inclusion level of defatted soybean meal in experimental diets for this species. 800 fishes (165 g) were distributed in 8 tanks, two replicates per treatment. Four isoproteic (50% CP) and isolipidic (17% Cl) diets were formulated with four levels of soybean meal inclusion, 0, 15, 30 and 45%. The trial lasted 107 days. Meagre fed diets 15 and 30% obtained the highest final weight. There were no significant differences among treatments in the feed conversion rate (FCR) and the protein efficiency (PER). According to the quadratic regression, the optimum SB inclusion to maximize thermal growth coefficient (TGC) was 26.4% and for FCR was 27.6%. No significant differences were observed in energy, protein and amino acid retention among diets. The inclusion of SB in meagre diets can generate a decrease in the use of fish meal and in turn reduce the cost of producing meagre Mediterranean aquaculture industry.Velazco Vargas, JL.; Martínez-Llorens, S.; Jover Cerda, M.; Tomas-Vidal, A. (2013). Evaluation of soybean meal as protein source for Argyrosomus Regius (Asso, 1801) (Sciaenidae). International Journal of Fisheries and Aquaculture. 5(3):25-44. doi:10.5897/IJFA12.062S25445