Review
Fisheries
S. Picchietti, A. Miccoli, A. M. Fausto
Summary: This review summarizes and discusses the trends and findings in scientific literature on the gut mucosa immune role in European sea bass, providing an updated overview on the gastrointestinal tract functional regionalization and defence barriers. The review also covers immune cells in two immunologically-relevant intestinal compartments, mucosal immunoglobulins, gut microbiota, dietary manipulation impacts, and oral vaccination strategies for sea bass vaccine delivery.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Wojciech Luczaj, Anna Jastrzab, Maria do Rosario Domingues, Pedro Domingues, Elzbieta Skrzydlewska
Summary: The study showed that CBD had a regulatory effect on the plasma phospholipid and ceramide profile of rats exposed to UV radiation, reducing inflammation and increasing antioxidant capacity.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Food Science & Technology
Abhishek Bhattacharya, Mathias Wiemann, Henrik Stalbrand
Summary: The study investigates the depolymerization of 13-mannans in legumes and softwoods by a galactose-tolerant 13-mannanase from Bacteroides ovatus. The produced 13-mannan-oligosaccharides showed prebiotic potential by promoting growth of beneficial gut bacteria and production of short-chain fatty acids. This highlights the importance of glycosidases from gut microbiota in the production of dietary prebiotics.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Food Science & Technology
Xinggang Chen, Zhuang Tian, Hongbo Zhou, Guoying Zhou, Haina Cheng
Summary: In this study, beta-mannanase was immobilized on calcium alginate, which showed better thermal and pH stability and lower substrate affinity compared to free enzyme. The immobilized enzyme could be reused multiple times and maintained activity even after 30 days of storage. A significant amount of MOSs with high concentration of mannobiose and mannotriose were produced. This immobilization strategy has great potential in the production of mannan oligosaccharides.
Article
Biochemistry & Molecular Biology
Anjali Purohit, Sudesh Kumar Yadav
Summary: Whole genome sequencing was conducted on Microbacterium sp. CIAB417 to determine its novelty at species level and identify genes encoding enzymes for mannan degradation. The draft genome had a length of 6.53 mbp and contained 41 contigs and 6078 genes. The study also predicted the presence of three novel mannanase coding genes and other related enzymes.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Fisheries
S. Torrecillas, S. Rimoldi, D. Montero, A. Serradell, F. Acosta, R. Fontanillas, F. Allal, P. Haffray, A. Bajek, G. Terova
Summary: The study aimed to replace dietary fishmeal/fish oil without affecting European sea bass performance and health status. The study found that diet and genotype have a significant impact on the gut bacterial composition of sea bass, but without negative effects on their health and growth. Selectively bred sea bass had a more adaptable gut microbiota composition.
Article
Agriculture, Dairy & Animal Science
Zhiyuan Lu, Lin Feng, Weidan Jiang, Pei Wu, Yang Liu, Jun Jiang, Shengyao Kuang, Ling Tang, Shuwei Li, Chengbo Zhong, Xiaoqiu Zhou
Summary: This study investigated the effects of mannoligosaccharides (MOS) on the immune response of grass carp infected with Aeromonas hydrophila. The results showed that supplementation with 400-600 mg/kg MOS could enhance the antioxidant capacity and reduce oxidative damage in the head kidney and spleen. It also inhibited excessive apoptosis.
JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Jacob Tveiten Bjerrum, Yulan Wang, Jingtao Zhang, Lene Buhl Riis, Ole Haagen Nielsen, Jakob Benedict Seidelin
Summary: Improving the long-term prognosis of ulcerative colitis (UC) requires studying the wound healing process and lipid metabolites in colonic tissue regeneration. This study found that UC patients have a prolonged wound healing process and altered disease-specific lipidomic trajectories. Potential novel therapeutic targets for stimulating mucosal regeneration were identified.
INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Luis-Miguel Gomez-Osorio, Janni Ulnits Nielsen, Helle Jakobe Martens, Reinhard Wimmer
Summary: In this study, the action of a beta-mannanase from B. subtilis on PKC was investigated. It was found that the beta-mannanase significantly increased the amount of mannan oligosaccharides in solution while reducing their degree of polymerization. Confocal immunofluorescence microscopy revealed the solubilization of galactomannan in PKC, resulting in disruption of the cellulose and galactomannan structures of the PKC cell walls. These findings suggest that adding beta-mannanase to poultry feed formulation could enhance the utilization of PKC, leading to improved return on investment.
Article
Agronomy
Ting Liu, Fadi Li, Jianfeng Xu, Jing Wang, Zhenfeng Shen, Fan Zhang, Jiaqi Wang, Chen Zheng
Summary: This study investigated the effects of mannan oligosaccharides (MOS) on health, growth performance, fatty acids deposition, and serum and urine metabolites in Hu lambs. The results showed that MOS improved the digestibility of organic matter, crude protein, ether extract, calcium, and phosphorus, as well as the proportion of unsaturated fatty acids in lambs. MOS also reduced the diarrhea rate and the proportion of saturated fatty acids. In addition, MOS regulated the metabolites in serum and urine, which were correlated with nutrient digestibility and fatty acid composition.
Article
Fisheries
Bruno Cavalheiro Araujo, Marlene Rodriguez, Renato Massaaki Honji, Artur Nishioka Rombenso, Oscar Basilio del Rio-Zaragoza, Abraham Cano, Aurora Tinajero, Jose Antonio Mata-Sotres, Maria Teresa Viana
Summary: The study found that different levels of dietary arachidonic acid (ARA) had effects on the growth, survival rate, and feed intake of striped bass exposed to different temperatures. Higher ARA levels in the diet promoted weight gain and survival, while lower levels may hinder growth. Additionally, temperature rise influenced lipid deposition in hepatocytes and modulated gene expression related to prostaglandin and fatty acid synthesis and breakdown.
Article
Multidisciplinary Sciences
Chen Zheng, Juwang Zhou, Yanqin Zeng, Ting Liu
Summary: The study found that dietary supplementation of Mannan oligosaccharides did not affect feed intake, body weight, average daily weight gain, ruminal short-chain fatty acids concentration, or hematological parameters in sheep. However, it improved the digestibility of certain nutrients and decreased ruminal ammonia concentration, particularly at a dose of 1.6%.
Article
Biotechnology & Applied Microbiology
Karine de Melo Santos, Larissa Wuensche Risolia, Mariana Fragoso Rentas, Andressa Rodrigues Amaral, Roberta Bueno Ayres Rodrigues, Maria Isabel Gonzalez Urrego, Thiago Henrique Annibale Vendramini, Ricardo Vieira Ventura, Julio Cesar de Carvalho Balieiro, Cristina de Oliveira Massoco, Joao Paulo Fernandes Santos, Cristiana Fonseca Ferreira Pontieri, Marcio Antonio Brunetto
Summary: This study evaluated the effects of supplementing different levels of dehydrated yeast culture on the fecal microbiota, nutrient digestibility, and immune parameters of healthy adult dogs. The results showed that the yeast addition modulated the proportions of certain phyla and genera in the microbiota, improved nutrient digestibility, and affected fermentative products and immunity in the dogs.
FERMENTATION-BASEL
(2022)
Article
Engineering, Marine
Mary E. M. Larkin, Allen R. Place
Summary: Incorporating environmentally sustainable plant-based protein sources into aquafeeds is important, but the effects of specific plant proteins on different fish species need to be evaluated. Previous studies showed that wheat gluten at less than 4% inclusion had a negative impact on the growth and survival rate of juvenile cobia. In this study, the effects of wheat gluten inclusion in a plant-based diet for juvenile European sea bass were evaluated, and it was found that 4% dietary wheat gluten was well tolerated by the fish.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Microbiology
Chao Yang, Tianxi Zhang, Quanhua Tian, Yan Cheng, Kefyalew Gebeyew, Guowei Liu, Zhiliang Tan, Zhixiong He
Summary: The supplementation of MOS during the neonatal period in goats increases antioxidant capacity, reduces inflammatory response, promotes IgA secretion, and enhances the colonization of Lactobacillus in the ileum.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Carmen Tatiana Kalinowski, Monica B. Betancor, Silvia Torrecillas, Matthew Sprague, Laurence Larroquet, Vincent Veron, Stephane Panserat, Maria Soledad Izquierdo, Sadasivam J. Kaushik, Stephanie Fontagne-Dicharry
Summary: This study investigated the influence of dietary astaxanthin (AX) on glucose and lipid metabolism in rainbow trout liver. The results showed that dietary AX had a significant impact on neutral and polar lipids in the liver, hepatocyte size, cytoplasm vacuolization, and gene expression related to TAG turnover, beta-oxidation, PL and cholesterol synthesis. Overall, dietary AX modulates the oxidative phase of the pentose phosphate pathway and the last step of glycolysis, affecting various aspects of lipid metabolism in rainbow trout liver.
Article
Environmental Sciences
Maria Jose Caballero, Francisco Jose Perez-Torrado, Alicia Velazquez-Wallraf, Monica Beatriz Betancor, Antonio Fernandez, Ayoze Castro-Alonso
Summary: The Canary Islands have experienced two volcanic eruptions in the last decade: a submarine eruption in El Hierro in 2011-12, and a subaerial eruption in La Palma in 2021. Necropsies of fish specimens from El Hierro and La Palma revealed pathological findings associated with both eruption styles. During the submarine eruption, high mortality and congestion in various organs were observed in fishes, while fishes near the lava deltas of the subaerial eruption showed increased mortality, ash particles in their gills, and intestinal impaction with volcanic material.
FRONTIERS IN MARINE SCIENCE
(2023)
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
Agriculture, Dairy & Animal Science
Elena Plamenova Stefanova, Oscar Quesada-Canales, Yania Paz-Sanchez, Maria Jose Caballero, Maria del Pino Quintana-Montesdeoca, Antonio Espinosa de los Monteros, Miguel Antonio Rivero, Ayoze Castro, Valentin Perez, Marisa Andrada
Summary: This study examined the pathological findings and lesions caused by Mycobacterium avium subspecies paratuberculosis (MAP) in naturally infected goats. It was found that MAP infection can lead to significant damage in the organs, particularly the hemolymphatic, respiratory, and gastrointestinal systems. Vaccination was found to reduce the risk of pneumonia and non-PTB gastrointestinal diseases in goats.
Article
Environmental Sciences
Airam N. Sarmiento-Lezcano, M. Pilar Olivar, Maria Jose Caballero, Maria Couret, Santiago Hernandez-Leon, Arturo Castellon, Marian Pena
Summary: This study provides information on the swimbladder properties of six Cyclothone species, including swimbladder location, fat tissue content, morphology, morphometry, and fish body-mass density. The results demonstrate the change in scattering behavior of Cyclothone species from gas-bearing organisms in the upper mesopelagic zone to the fluid-like scattering of the deeper and northern individuals. These findings are important for developing acoustic backscattering models to estimate the echo of Cyclothone species.
FRONTIERS IN MARINE SCIENCE
(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
D. Montero, M. Carvalho, G. Terova, R. Fontanillas, A. Serradell, R. Gines, V. Tuset, F. Acosta, S. Rimoldi, A. Bajek, P. Haffray, F. Allal, S. Torrecillas
Summary: The present study aimed to determine the effectiveness of genetic selection for growth in European sea bass in response to a challenge with an alternative diet. The results showed that European sea bass selected for 7 generations performed better in terms of growth, with decreased fat content and increased nutritional value of flesh. The dietary treatment had little effect on fish growth performance, indicating successful replacement of fishmeal and fish oil. Therefore, multi-trait genetic selection can improve the ability of European sea bass to adapt to alternative feeds with low fishmeal and fish oil.
Article
Fisheries
S. Torrecillas, S. Rimoldi, D. Montero, A. Serradell, F. Acosta, R. Fontanillas, F. Allal, P. Haffray, A. Bajek, G. Terova
Summary: The study aimed to replace dietary fishmeal/fish oil without affecting European sea bass performance and health status. The study found that diet and genotype have a significant impact on the gut bacterial composition of sea bass, but without negative effects on their health and growth. Selectively bred sea bass had a more adaptable gut microbiota composition.
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
Environmental Sciences
Maria Jose Ramos-Sosa, Natalia Garcia-Alvarez, Andres Sanchez-Henao, Daniel Padilla, Freddy Silva Sergent, Ana Gago-Martinez, Jorge Diogene, Maria Jose Caballero, Antonio Fernandez, Fernando Real
Summary: This study aims to assess the distribution of CTXs in fish, considering different muscle samples, the liver, and gonads. The results show that the caudal muscle next to the tail is a reliable part for use in determining the toxicity of fish flesh for safe consumption. Additionally, the analysis of the liver and gonads could provide further information on doubtful samples and be used for CTX monitoring in areas with an unknown prevalence of ciguatera.
ENVIRONMENTAL RESEARCH
(2023)
Article
Multidisciplinary Sciences
Alicia Velazquez-Wallraf, Maria Jose Caballero, Antonio Fernandez, Monica B. Betancor, Pedro Saavedra, Holden W. Hemingway, Yara Bernaldo de Quiros
Summary: Fish exposed to supersaturated water are susceptible to gas embolism, leading to gas bubble disease similar to decompression sickness in mammals. Biomarkers of cell damage, such as the HSP family, ET-1, and ICAM-1, show increased expression in response to gas embolism, making them potential targets for further studies. The GBD model, which involves exposing fish to highly supersaturated water, has been shown to induce severe gas embolism, as confirmed by histopathological examination and gas score method.
Article
Agriculture, Dairy & Animal Science
Antonio Serradell, Daniel Montero, Genciana Terova, Simona Rimoldi, Alex Makol, Felix Acosta, Aline Bajek, Pierrick Haffray, Francois Allal, Silvia Torrecillas
Summary: Husbandry practices in aquaculture may cause stress and oxidative damage to fish tissues. Functional ingredients can reinforce the fish's antioxidant response and stress tolerance. Selective breeding strategies have also shown a correlation between fish growth and stress reactiveness, which is important for species domestication.
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
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.