Article
Fisheries
Hanlin Xu, Shajahan Ferosekhan, Serhat Turkmen, Juan Manuel Afonso, Maria Jesus Zamorano, Marisol Izquierdo
Summary: The study found significant trans-generational effects of both the broodstock fads2 expression and the type of lipid in the broodstock diet on the metabolism and performance of the juvenile progeny challenged with a diet low in FM and FO.
Article
Fisheries
Sara Puchol, Esther Leal, Rita Angotzi, Jesus Rosel, Sofia Morais, Jose Miguel Cerda-Reverter
Summary: This study used self-feeding systems to investigate feeding behavior and dietary discrimination in seabream. The results showed that seabream can easily discriminate bitter compounds and display negative preference towards them. Additionally, the study found that food intake is influenced by agonistic behavior and age.
Article
Biotechnology & Applied Microbiology
F. Naya-Catala, A. Belenguer, D. Montero, S. Torrecillas, B. Soriano, J. Calduch-Giner, C. Llorens, R. Fontanillas, S. Sarih, M. J. Zamorano, M. Izquierdo, J. Perez-Sanchez
Summary: The study found that the influence of broodstock nutrition on gilthead sea bream with different genetic backgrounds results in distinct hepatic transcriptome and genome-wide DNA methylation patterns, with the magnitude of the impact depending on the genetic background.
Article
Agriculture, Dairy & Animal Science
Shajahan Ferosekhan, Serhat Turkmen, Cathaysa Perez-Garcia, Hanlin Xu, Ana Gomez, Nazeemashahul Shamna, Juan Manuel Afonso, Grethe Rosenlund, Ramon Fontanillas, Anselmo Gracia, Marisol Izquierdo, Sadasivam Kaushik
Summary: The study found that gilthead seabream broodstock selected for high growth trait, fed with fish oil-based diet, showed significant improvement in sperm, egg, and larval quality. This indicates that genetic selection based on growth trait has a positive impact on reproductive performance in gilthead seabream.
Article
Fisheries
Marta Carvalho, Daniel Montero, Silvia Torrecillas, Pedro Castro, Marta Jesus Zamorano, Marisol Izquierdo
Summary: This study investigated how the combination of poultry oil with microalgae oils could modulate hepatic lipid metabolism in gilthead sea bream juveniles. It was found that combining microalgae with poultry oil could be an alternative lipid and essential fatty acid source to fish oil in marine fish diets.
Article
Fisheries
Catarina Basto-Silva, Claudia R. Serra, Carolina Castro, Guilherme S. Novoa, Aires Oliva-Teles, Encarnacion Capilla, Ines Guerreiro
Summary: This study evaluated the effects of feeding frequency and dietary protein/carbohydrate ratios on intestinal histomorphology, microbiota profile, and digestive and oxidative stress-related enzyme activities of gilthead seabream. The results showed that feeding frequency and diet composition had no significant effects on intestinal histomorphology and microbiota, but influenced the activity of digestive enzymes. It is recommended to feed gilthead seabream juveniles with a diet containing 40% protein and 20% carbohydrates, twice a day.
AQUACULTURE NUTRITION
(2022)
Article
Agriculture, Dairy & Animal Science
Shajahan Ferosekhan, Samira Sarih, Juan Manuel Afonso, Maria Jesus Zamorano, Ramon Fontanillas, Marisol Izquierdo, Sadasivam Kaushik, Daniel Montero
Summary: Genetic selection for high growth in gilthead seabream broodstock positively impacts reproductive performance, with differences observed in fecundity parameters and egg fatty acid profiles when fed different diets. Replacement of fish oil by rapeseed oil did not significantly affect reproduction as long as essential fatty acid requirements were met.
ANIMAL REPRODUCTION SCIENCE
(2022)
Article
Fisheries
Catarina Basto-Silva, Paula Enes, Aires Oliva-Teles, Encarnacion Capilla, Ines Guerreiro
Summary: This study evaluated the effects of dietary protein/carbohydrate ratio and feeding frequency on the growth, metabolism, and economic efficiency of gilthead seabream juveniles. The results showed that feeding a diet with a protein/carbohydrate ratio of 40%/20% twice a day was the most suitable strategy, as it improved fish growth and economic efficiency.
Article
Fisheries
Eslam Tefal, Ignacio Jauralde, Ana Tomas-Vidal, Silvia Martinez-Llorens, David S. Penaranda, Miguel Jover-Cerda
Summary: This 120-day experiment investigated the effects of new organic raw materials on the growth, nutritional parameters, digestibility, and histology of Gilthead seabream. Results showed that substituting fishmeal with organic raw materials, including rainbow trout remains, Iberian pig viscera, and insects, improved the digestibility, histology, and growth performance of the seabream. The seabream fed on the rainbow trout and insect diets had the highest protein content, while the seabream fed on the control diet had the highest fat content. Except for methionine, there were no significant differences in amino acid retention efficiency among the different diets.
Article
Biotechnology & Applied Microbiology
Beatriz de la Fuente, Jose Pinela, Ricardo C. Calhelha, Sandrina A. Heleno, Isabel C. F. R. Ferreira, Francisco J. Barba, Houda Berrada, Cristina Caleja, Lillian Barros
Summary: The study demonstrates that oil extracted from European sea bass and gilthead sea bream heads have a healthy lipid profile and are a good source of docosahexaenoic acid. Oils obtained through microwave-assisted extraction showed higher antibacterial and antifungal effects against pathogens, indicating potential cardiovascular protective effects.
FOOD AND BIOPRODUCTS PROCESSING
(2022)
Article
Fisheries
Dmitri Fabrikov, Fernando G. Barroso, Ma Jose Sanchez-Muros, Ma Carmen Hidalgo, Gabriel Cardenete, Cristina Tomas-Almenar, Federico Melenchon, Jose Luis Guil-Guerrero
Summary: The use of insect meal in fish diets was found to decrease valuable long chain polyunsaturated fatty acids (LCPUFAs) in fish fillets, particularly in diets with higher insect inclusion levels. However, different fish species showed varying levels of resilience to insect inclusion, with some being more suitable for insect-based diets.
Article
Biochemistry & Molecular Biology
Catarina Basto-Silva, Ana Couto, Juliana Rodrigues, Aires Oliva-Teles, Isabel Navarro, Hiroyuki Kaiya, Encarnacion Capilla, Ines Guerreiro
Summary: The study evaluated the impact of feeding frequency and dietary protein/carbohydrate ratios on appetite regulation in gilthead seabream. The results showed that feeding fish 2 or 3 meals per day and providing a low protein and high carbohydrate diet led to increased feed intake and feed conversion ratio. The specific growth rate was also higher in fish fed multiple meals per day. However, the expression of appetite-related genes in the brain and gut was not affected by feeding frequency or diet composition. Overall, the study suggests that feeding gilthead seabream a low protein and high carbohydrate diet multiple times a day may decrease the feeling of satiation.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
(2022)
Article
Fisheries
D. Montero, F. J. Moyano, M. Carvalho, S. Sarih, R. Fontanillas, M. J. Zamorano, S. Torrecillas
Summary: The promotion of sustainability and efficiency in aquaculture production requires novel nutritional strategies with sustainable raw materials and successful breeding programs. Genetic variability in fish species allows for adaptation to plant-based diets and the utilization of emergent ingredients.
Article
Agriculture, Dairy & Animal Science
Maria Dolores Ayala, Noemi Balsalobre, Elena Chaves-Pozo, Maria Isabel Saez, Alba Galafat, Francisco Javier Alarcon, Tomas Francisco Martinez, Marta Arizcun
Summary: This study investigated the long-term effects of microalgae-enriched diets on the growth of juvenile seabream. Results showed that the inclusion of microalgae in the diet influenced body and muscle growth, with the hydrolyzed diet and higher inclusion levels having a more significant effect. The findings suggest that incorporating microalgae in the juvenile diet can improve subsequent growth, which is beneficial for fish farmers.
Article
Fisheries
Sergio Godoy-Olmos, Ignacio Jauralde, Raquel Monge-Ortiz, Maria C. Milian-Sorribes, Miguel Jover-Cerda, Ana Tomas-Vidal, Silvia Martinez-Llorens
Summary: This study analyzed the performance of biofilters in six individual recirculating aquaculture systems (RAS) where Gilthead sea bream were raised. The study found that fish fed with plant meal-based diet consumed the most oxygen, while fish fed by auto-demand feeders had the highest ammonia removal rate and preserved fish welfare and growth.
AQUACULTURE INTERNATIONAL
(2022)
Article
Fisheries
Mathieu Besson, Nicky Rombout, Germain Salou, Alain Vergnet, Sophie Cariou, Jean-Sebastien Bruant, Marisol Izquierdo, Anastasia Bestin, Frederic Clota
Summary: Genetic improvement of feed efficiency in fish farming is crucial for its economic and environmental sustainability. This study validated a method to evaluate individual feed efficiency based on individual rearing in aquariums under restricted feeding. The results showed that individual feed efficiency had an impact on group feed efficiency, and feed efficiency was heritable but did not have significant associated QTLs. Additionally, feed efficiency was genetically negatively correlated to viscera yield. These findings support the use of individual feed efficiency measurement in aquariums as a reliable phenotyping method for genetic improvement of feed efficiency.
AQUACULTURE REPORTS
(2022)
Article
Fisheries
Yiyen Tseng, Kamil Mert Eryalcin, U. Sivagurunathan, David Dominguez, Carmen Maria Hernandez-Cruz, Clara Boglione, Antony Jesu Prabhu Philip, Marisol Izquierdo
Summary: This study investigated the effects of dietary copper (Cu) levels on the growth, oxidative stress, fatty acid profile, and bone health of gilthead seabream larvae. The results showed that larval growth and survival were not affected by different dietary Cu levels. However, Cu deficiency symptoms, such as increased lipid peroxidation and reduced bone mineralization, were observed in larvae fed a non-supplemented diet. On the other hand, dietary Cu supplementation improved fatty acid composition and reduced anomalies in seabream larvae.
Article
Genetics & Heredity
Ahmed Ibrahem Hafez, Beatriz Soriano, Aya Allah Elsayed, Ricardo Futami, Raquel Ceprian, Ricardo Ramos-Ruiz, Genis Martinez, Francisco Jose Roig, Miguel Angel Torres-Font, Fernando Naya-Catala, Josep Alvar Calduch-Giner, Lucia Trilla-Fuertes, Angelo Gamez-Pozo, Vicente Arnau, Jose Maria Sempere-Luna, Jaume Perez-Sanchez, Toni Gabaldon, Carlos Llorens
Summary: The GPRO suite is an ongoing bioinformatic project for the analysis of -omics data. It introduces a client- and server-side solution for comparative transcriptomics and variant analysis. The client-side includes two Java applications, RNASeq and VariantSeq, which manage pipelines and workflows using common command line tools. The server-side, named GPRO Server-Side, hosts all dependencies and requires a Linux operating system, PHP, SQL, Python, bash scripting, and third-party software. The solution offers both desktop and web applications, with step-by-step and pipeline modes for execution. It also features an experimental support system called GENIE, with a chatbot assistant and expert system for troubleshooting and recommendations.
Article
Fisheries
Marta Carvalho, Silvia Torrecillas, Daniel Montero, Antonio Sanmartin, Ramon Fontanillas, Ana Farias, Katerina Moutou, Jorge Hernandez Velasquez, Marisol Izquierdo
Summary: In recent years, aquaculture research and industry have been searching for novel alternatives to fish meal to make fish feeds more effective and sustainable. Insect meals and single-cell proteins from bacteria have shown promise, but their effects on gilthead sea bream have not been thoroughly studied. This study evaluated the effects of replacing fish meal with insect meal or single-cell protein in practical diets for gilthead sea bream juveniles.
Article
Fisheries
U. Sivagurunathan, David Dominguez, Yiyen Tseng, Maria Jesus Zamorano, Antony Jesu Prabhu Philip, Marisol Izquierdo
Summary: The study investigates the combined effect of vitamin D-3 and vitamin K-3 supplementation in gilthead seabream larvae. Results show that supplementation with 0.06-0.13 mg/kg vitamin D-3 and 70 mg/kg vitamin K-3 promotes larval growth and survival, and enhances the expression of genes related to bone development and calcium homeostasis. However, excessive supplementation of these vitamins leads to reduced larval growth and survival, and imbalanced gene expression. Therefore, maintaining a proper balance between these vitamins in larval diets is crucial.
AQUACULTURE NUTRITION
(2023)
Review
Fisheries
Brett Glencross, Debora Machado Fracalossi, Katheline Hua, Marisol Izquierdo, Kangsen Ma, Margareth Overland, David Robb, Rodrigo Roubach, Johan Schrama, Brian Small, Albert Tacon, Luisa M. P. Valente, Maria-Teresa Viana, Shouqi Xie, Amararatne Yakupityage
Summary: Substantial progress has been made in improving aquaculture feeds and feeding technologies over the past 20 years. The feed conversion efficiency and ingredient sustainability have improved significantly. However, there is still a need to define the requirements, especially for species farmed in the developing world. Precision nutrition approach and diversification of ingredient options are essential for sustainable aquaculture. The use of automated feeding systems is increasing in advanced aquaculture systems, while manual labor is still prevalent in the developing world.
JOURNAL OF THE WORLD AQUACULTURE SOCIETY
(2023)
Article
Fisheries
U. Sivagurunathan, David Dominguez, Yiyen Tseng, Maria Jesus Zamorano, Antony Jesu Prabhu, Marisol Izquierdo
Summary: Despite limited research, this study found that vitamin K is important for growth and bone health in gilthead seabream larvae. Feeding larvae with 4.98 mg kg(-1) of vitamin K-3 resulted in the highest growth, while higher levels of vitamin K-3 reduced growth and survival. The incidence of bone anomalies decreased as the level of vitamin K-3 increased, with the optimal level being 5 mg kg(-1). However, high levels of vitamin K-3 (22.9 and 58.51 mg kg(-1)) caused deformities, reduced mineralization, and imbalances in bone health-related gene expression.
Article
Fisheries
Tilo Pfalzgraff, Pedro Borges, Lidia Robaina, Sadasivam Kaushik, Marisol Izquierdo
Summary: This study aimed to evaluate the dietary requirement of 0.7-0.8% n-3 LC-PUFA for optimal growth and liver health status in juvenile meagre.
Article
Fisheries
Javier Roo, Daniel Montero, Quiros-Pozo Raquel, Christian Monzon-Rivero, Marisol Izquierdo Lopez
Summary: This study evaluated the alternative use of eicosapentaenoic acid (EPA) oils to improve the n-3 long-chain highly unsaturated fatty acid content in enriched Artemia sp. for greater amberjack larvae. The results showed that dietary EPA supplementation significantly improved larval growth and survival, suggesting the successful use of low DHA but high EPA-rich oil enrichment products for the cultivation of S. dumerili larvae.
AQUACULTURE NUTRITION
(2023)
Article
Genetics & Heredity
Beatriz Soriano, Ahmed Ibrahem Hafez, Fernando Naya-Catala, Federico Moroni, Roxana Andreea Moldovan, Socorro Toxqui-Rodriguez, Maria Carla Piazzon, Vicente Arnau, Carlos Llorens, Jaume Perez-Sanchez
Summary: This paper introduces SAMBA, a computational tool that uses a Bayesian network approach to model the network structure and interactions of fish gut microbiomes in aquaculture systems. SAMBA can infer the influence of farming conditions on microbiome diversity and predict changes under different conditions. It is worth noting that SAMBA can be used for modeling microbiome-host network relationships of any vertebrate organism, including humans, in any system and/or ecosystem.
Article
Environmental Sciences
Carmen Navarro-Guillen, Eirik Degre Lorentsen, Erick Perera, Manuel Yufera, Olav Vadstein
Summary: This study investigates the diurnal dynamics and activity of gut microbiota in greater amberjack juveniles by analyzing the qualitative and quantitative composition in feces. The results show that feeding and water temperature have a significant influence on the microbial community, with feeding being the main driver modulating bacterial activity and water temperature modulating the time scale. The study also suggests that analysis of absolute bacterial potential activity provides better resolution of metabolically active gut microbial community.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
F. Naya-Catala, A. Belenguer, D. Montero, S. Torrecillas, B. Soriano, J. Calduch-Giner, C. Llorens, R. Fontanillas, S. Sarih, M. J. Zamorano, M. Izquierdo, J. Perez-Sanchez
Summary: The study found that the influence of broodstock nutrition on gilthead sea bream with different genetic backgrounds results in distinct hepatic transcriptome and genome-wide DNA methylation patterns, with the magnitude of the impact depending on the genetic background.