Review
Chemistry, Multidisciplinary
Edo D'Agaro, PierPaolo Gibertoni, Stefano Esposito
Summary: The global aquaculture sector has become more complex and dynamic in recent decades, playing a crucial role in meeting the increasing global demand for fish products. Italy, in particular, has seen significant growth in rainbow trout production, which is the most widely farmed species in the country.
APPLIED SCIENCES-BASEL
(2022)
Article
Fisheries
P. C. Lindholm-Lehto, J. Koskela, H. Leskinen, J. Vielma, A. Kause
Summary: This study found that fish and families with high lipid contents tend to accumulate higher concentrations of off-flavor compounds, particularly when expressed as contents of total lipids. The concentrations of off-flavors in rainbow trout ranged from 0.1 to 3.9 ng g-1 ww (GSM) and from 0.1 to 2.4 ng g-1 ww (MIB). Additionally, reduced levels of GSM were associated with increased levels of health-promoting fatty acids (PUFA and n-3) and decreased levels of MUFA and the n-6:n-3 ratio, which is beneficial for aquaculture practices.
Article
Fisheries
P. C. Lindholm-Lehto, J. Koskela, H. Leskinen, J. Vielma, A. Kause
Summary: This study investigated the relationships between off-flavor compounds, lipid contents, and fatty acids in rainbow trout reared in a recirculating aquaculture system (RAS). The results showed that fish with high lipid contents accumulated high concentrations of off-flavor compounds, but these compounds were negatively correlated with health-promoting fatty acids. Excessive lipid contents may reduce the nutritional value of the fish.
Article
Fisheries
Heidi Mathiessen, Yajiao Duan, Moonika H. Marana, Shaozhi Zuo, Asma M. Karami, Rzgar Jafaar, Louise von Gersdorff Jorgensen, Per W. Kania, Inger Dalsgaard, Lone Madsen, Torben Nielsen, Fabian Grammes, Jorgen odegard, Valeria Macchia, Kurt Buchmann
Summary: Flavobacterium psychrophilum is the causative agent of Bacterial Cold Water Disease (BCWD)/ Rainbow Trout Fry Syndrome (RTFS) in rainbow trout. The disease causes significant mortality in trout farms and leads to economic losses in the aquaculture industry. The immature development of adaptive immunity in young life cycle stages hinders successful vaccination, resulting in the widespread use of antibiotics. Selective breeding and identification of markers associated with disease resistance may improve breeding efforts for more resilient strains.
AQUACULTURE REPORTS
(2023)
Article
Environmental Sciences
Zhen Ma, Jia Zhang, Xu Zhang, Haixia Li, Ying Liu, Lei Gao
Summary: Light and temperature are necessary for migratory fish, and assessing fish physiology and behavior is crucial for fish welfare and the optimal setting of aquaculture systems. This study explores the interactive effect of photoperiod and temperature on steelhead trout culture, providing important insights for effective aquaculture systems.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Fisheries
Omolola C. Betiku, Carl J. Yeoman, T. Gibson Gaylord, Suzanne L. Ishaq, Glenn C. Duff, Wendy M. Sealey
Summary: In this study, the gut microbiome of rainbow trout was analyzed using whole shotgun metagenomic analysis. It was found that the trout responded well to both animal and plant protein diets. The gut-dwelling microbes were mainly bacteria (89.9%), with differences in composition and function between different gut locations modulated by dietary treatments. This study highlights the potential nutritive contributions of gut microbes to trout and the crucial functional division along the gut.
AQUACULTURE REPORTS
(2023)
Article
Fisheries
Nalan Ozgur Yigit, Secil Metin, Behire Isil Didinen, Hakan Didinen, Ozlem Ozmen
Summary: In this study, the anesthetic effects of lavender and laurel essential oils on rainbow trout were investigated. It was found that specific concentrations of these oils showed ideal anesthetic effects with negligible histopathological effects on the fish tissues.
Article
Environmental Sciences
Karina Godoy, Cristian Sandoval, Claudio Vasquez, Carlos Manterola-Barroso, Barbara Toledo, Joel Calfuleo, Carolina Beltran, Marion Bustamante, Sebastian Valderrama, Mariana Rojas, Luis A. Salazar
Summary: In this study, we evaluated the gene expression during bone formation and regeneration and their relationship with mineralization in rainbow trout with mandibular deformation. The results showed marked elevation of bone morphogenetic protein 2 (Bmp2) and distinct expression patterns for transcriptional factors. This deformation was characterized by demineralization, increased porosity, and a moderate decrease in bone mineral content.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Fisheries
Izzet Burcin Saticioglu, Hilal Ay, Soner Altun, Nevzat Sahin, Muhammed Duman
Summary: In the study of farmed rainbow trout samples in Rize, Turkey, two novel Flavobacterium species were discovered, and their taxonomic positions were confirmed through 16S rRNA gene sequence analysis. A polyphasic taxonomy approach was employed to establish the novelty of these strains, leading to the proposal of Flavobacterium bernardetii sp. nov. The isolates were found to have unique genomic and phenotypic characteristics, indicating a possible correlation with mortality in rainbow trout.
Editorial Material
Biology
Suzanne E. McGaugh, Aaron J. Lorenz, Lex E. Flagel
Summary: Genomic prediction methods, based on contributions from many loci of small effect, have been used in plant and animal breeding for almost two decades to predict breeding value for an individual. However, the application of these techniques in evolutionary genomics studies has been slow, with challenges still remaining to be overcome.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Environmental Sciences
Joan Sanchez-Matos, Leticia Regueiro, Sara Gonzalez-Garcia, Ian Vazquez-Rowe
Summary: Aquaculture is becoming increasingly important for global food supply, but its growth is constrained by environmental impacts. Spain, as a major supplier, accounts for 25% of aquaculture production in the European Union. This study used Life Cycle Assessment (LCA) to evaluate the production of rainbow trout in a medium-sized plant in Galicia, Spain. The results showed that aquafeed had a significant impact on most categories, and farm operation was responsible for freshwater eutrophication.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Veterinary Sciences
Aimee N. N. Reed, Freya E. E. Rowland, Jennifer A. A. Krajcik, Donald E. E. Tillitt
Summary: Steelhead fry reared in Oregon hatcheries have a high mortality rate and show signs of vitamin B1 deficiency. This study explores whether thiamine supplementation can improve their health and survival. The results demonstrate that thiamine-treated fry had significantly higher survival and growth rates compared to those without thiamine supplementation.
VETERINARY SCIENCES
(2023)
Article
Agriculture, Dairy & Animal Science
Ruben Groot, Philip Lyons, Johan W. Schrama
Summary: Accurate feed evaluation is crucial for feed formulation in aquaculture. This study tested a net energy (NE) evaluation method in predicting growth performance of rainbow trout feeds, showing that replacing fat with carbohydrates reduced energy utilization for growth, especially at high carbohydrate levels. The NE approach using linear efficiencies of digestible macronutrients demonstrated improved prediction precision of growth rate compared to the digestible energy (DE) approach. However, assuming a curvilinear effect of carbohydrates did not lead to an improved prediction of growth rate in this study.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Article
Food Science & Technology
Salud Maria Serrano Heredia, Javier Sanchez-Martin, Veronica Romero Gil, Francisco Noe Arroyo-Lopez, Antonio Benitez-Cabello, Elena Carrasco Jimenez, Antonio Valero Diaz
Summary: This study aimed to evaluate the hygienic-sanitary status of fresh-farmed rainbow trout fillets produced in a local fish farm in Andalusia, Spain. The results showed potential transmission of microbial contamination and suggested the implementation of control measures in fish farm facilities to extend the shelf-life of farmed fishery products.
Article
Fisheries
Dagoberto Sepulveda, Mie Johanne Hansen, Inger Dalsgaard, Jakob Skov, Niels Lorenzen
Summary: Despite vaccination, outbreaks of vibriosis still occur in sea-reared rainbow trout in Denmark. This study found that the antigenic variability within V. anguillarum serotype O2a strains can affect the antibody response and protection induced by bacterin-based vaccines. The study also found that the antibody reactivity classification of strains is correlated with genotyping and variability in the accessory genome.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Multidisciplinary Sciences
Martin Prchal, Antti Kause, Marc Vandeputte, David Gela, Jean-Michel Allamellou, Girish Kumar, Anastasia Bestin, Jerome Bugeon, Jinfeng Zhao, Martin Kocour
Article
Genetics & Heredity
Pieter W. Knap, Antti Kause
FRONTIERS IN GENETICS
(2018)
Article
Fisheries
Jinfeng Zhao, Martin Prchal, Christos Palaiokostas, Ross D. Houston, Antti Kause, Marc Vandeputte, Alain Vergnet, Jerome Bugeon, Anastasia Bestin, Tomas Vesely, Dagmar Pokorova, Veronika Piackova, Lubomir Pojezdal, Lucie Genestout, David Gela, Hana K. Kroupova, Martin Kocour
Article
Fisheries
Martin Prchal, Martin Kocour, Marc Vandeputte, Antti Kause, Alain Vergnet, Jinfeng Zhao, David Gela, Vojtech Kaspar, Lucie Genestout, Anastasia Bestin, Pierrick Haffray, Jerome Bugeon
Article
Multidisciplinary Sciences
Tuomas Leinonen, Jorma Piironen, Marja-Liisa Koljonen, Jarmo Koskiniemi, Antti Kause
Article
Fisheries
Hanna Kuukka-Anttila, Nina Peuhkuri, Irma Kolari, Antti Kause
AQUACULTURE RESEARCH
(2020)
Article
Fisheries
Anna Maria Eriksson-Kallio, Riikka Holopainen, Perttu Koski, Antti Nousiainen, Heikki Koskinen, Antti Kause, Tuija Gadd
DISEASES OF AQUATIC ORGANISMS
(2020)
Article
Fisheries
Jinfeng Zhao, Martin Prchal, Antti Kause, Marc Vandeputte, David Gela, Hana Kocour Kroupova, Veronika Piackova, Pavel Sauer, Christoph Steinbach, Jean-Michel Allamellou, Christos Palaiokostas, Ross D. Houston, Martin Kocour
Summary: This study investigated the genetic and phenotypic background of energy reserves in Amur mirror carp and their impact on fish performance during the first winter. Results showed most traits related to energy reserves significantly decreased after the first winter, with differing genetic correlations and heritability before and after the winter. Interestingly, genetic correlations between HP glycogen traits and survival in the third growing season were positive, suggesting a genetically based strategy for energy mobilization in common carp. Monitoring FC and HSI could be useful for managing carp stocks.
Article
Fisheries
P. C. Lindholm-Lehto, J. Koskela, H. Leskinen, J. Vielma, A. Kause
Summary: This study investigated the relationships between off-flavor compounds, lipid contents, and fatty acids in rainbow trout reared in a recirculating aquaculture system (RAS). The results showed that fish with high lipid contents accumulated high concentrations of off-flavor compounds, but these compounds were negatively correlated with health-promoting fatty acids. Excessive lipid contents may reduce the nutritional value of the fish.
Article
Fisheries
Silvia Garcia-Ballesteros, Jesus Fernandez, Antti Kause, Beatriz Villanueva
Summary: Carcass and fillet yields are economically important traits in aquaculture, and headless gutted carcass percentage (HC) is a convenient selection criterion. However, HC is a sib trait that cannot be recorded on selection candidates. This study compared different selection strategies for improving HC in rainbow trout breeding programs and found that a combination of genomic and indirect selection is the most effective approach.
Article
Fisheries
Clemence Fraslin, Heikki Koskinen, Antti Nousianen, Ross D. Houston, Antti Kause
Summary: This study demonstrates that selective breeding for improved resistance to columnaris disease in rainbow trout is feasible. A natural outbreak of the disease in a farm environment can be utilized to select fish with greater resistance, and genomic selection is an effective approach to expedite this process.
Article
Agriculture, Dairy & Animal Science
Antti Kause, Antti Nousiainen, Heikki Koskinen
Summary: Improvement in feed conversion ratio (FCR) and reduction in nutrient loading in rainbow trout farming have significantly improved resource efficiency. Selective breeding has contributed to this improvement with an estimated genetic gain of 1.74% per generation in FCR. The use of genetically improved trout reduces feed and production costs.
JOURNAL OF ANIMAL SCIENCE
(2022)
Article
Genetics & Heredity
Federico C. F. Calboli, Heikki Koskinen, Antti Nousianen, Clemence Fraslin, Ross D. Houston, Antti Kause
Summary: This study conducted a comparative genetic analysis of the quantitative trait loci for resistance to warm water columnaris disease in two farmed rainbow trout populations. The results identified a major quantitative trait loci on chromosome Omy03 and a smaller quantitative trait loci on Omy05. These findings provide insights into the genetic basis of disease resistance and offer potential markers for breeding programs aiming to increase resistance against columnaris disease.
G3-GENES GENOMES GENETICS
(2022)
Article
Agriculture, Multidisciplinary
Luis Gomez-Raya, Wendy M. Rauw, Santiago Cabaleiro, Ruben Caamano, L. Alberto Garcia-Cortes, Antti Kause
SPANISH JOURNAL OF AGRICULTURAL RESEARCH
(2018)
Article
Fisheries
Matti Janhunen, Antti Nousiainen, Heikki Koskinen, Harri Vehvilainen, Antti Kause