Article
Fisheries
Yelehi Diane Ahongo, Thierry Kerneis, Lionel Goardon, Laurent Labbe, Jerome Bugeon, Pierre-Yves Rescan, Florence Lefevre
Summary: The study examined the changes in technological and organoleptic qualities of female rainbow trout flesh after spawning and found that fillet quality gradually recovered over a period of approximately 24 weeks post-spawning. By around 1400 degree C.days after spawning, the quality parameters of the flesh were mostly restored to pre-spawning levels.
Article
Biochemistry & Molecular Biology
Tayyeb Ghadimi, Soheila Naderi Gharahgheshlagh, Noorahmad Latifi, Ahmad Hivechi, Vahid Hossienpour Sarmadi, Siama Farokh Forghani, Naser Amini, Peiman B. Milan, Fatemeh Latifi, Masoud Hamidi, Ghazaleh Larijani, Seyed Mohammad Amin Haramshahi, Motahareh Abdollahi, Fatemeh Ghadimi, Saeed Nezari
Summary: In this study, collagen/exo-polysaccharide (Col/EPS 1-3%) scaffolds are synthesized from rainbow trout skins to promote Grade 3 burn wound healing. The results show that the presence of EPS affects the porosity dimensions of the scaffolds. The biological results demonstrate that increasing EPS does not affect the biodegradability and cell viability of the scaffolds, and using Col/EPS 1% on rat models shows a faster healing rate.
MACROMOLECULAR BIOSCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Gregory M. Weber, Jill Birkett, Kyle Martin, Doug Dixon, Guangtu Gao, Timothy D. Leeds, Roger L. Vallejo, Hao Ma
Summary: The study found that differential expression of maternal transcripts between low- and high-quality eggs in rainbow trout can overlap in different populations. There is greater similarity in dysregulated transcripts within year classes of the same line, suggesting insight into causes of decreased viability within a hatchery population. Although many DEGs were identified, there is considerable variability in transcript abundance among eggs of similar quality, making it highly improbable to predict egg quality based on just a few genes.
Article
Food Science & Technology
Yiwen Wu, Manman Zhao, Yuting Xia, Weiqing Sun, Guangquan Xiong, Liu Shi, Yu Qiao, Wenjing Wu, Anzi Ding, Lang Chen, Lan Wang, Sheng Chen
Summary: In order to study the deterioration of rainbow trout muscle quality caused by ammonia exposure, experiments with different concentrations of ammonia stress were conducted. The results showed that higher ammonia exposure led to increased bitterness and decreased umami and sweetness of the muscle, as well as decreased polyunsaturated fatty acids (PUFA) content. The expression of lipid metabolism-related genes was also affected, inhibiting lipid synthesis and promoting lipid oxidation. These findings are important for understanding the relationship between muscle quality, lipid metabolism, and environmental adaptability of rainbow trout (O. mykiss).
Article
Environmental Sciences
Fatemeh Sheykhkanlu Milan, Bahareh Rostamzadeh Sani Maleki, Mir-Hassan Moosavy, Shalaleh Mousavi, Najmeh Sheikhzadeh, Seyed Amin Khatibi
Summary: The study showed that feeding dietary Haematococcus pluvialis to rainbow trout can protect against oxidative stress induced by arsenic, leading to decreased levels of oxidation and increased expression of antioxidant genes.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Fisheries
Yiwen Wu, Manman Zhao, Guangquan Xiong, Weiqing Sun, Wenjin Wu, Anzi Ding, Sheng Chen, Lan Wang, Liu Shi
Summary: The study investigated the impacts of hypoxia during short-time transportation on the muscle quality of rainbow trout and its relief attempt by reoxygenation. The results showed that severe hypoxic trout exhibited lower shearing force, saturated fatty acid content, and delicious amino acids, and higher expressible moisture, Metmyoglobin, and essential amino acids content compared to the sample without hypoxia. Reoxygenation for 24 h effectively relieved the quality deterioration of rainbow trout fillets induced by hypoxia.
Article
Food Science & Technology
Yuqiong Meng, Xiaohong Liu, Lingling Guan, Shoumin Bao, Linying Zhuo, Haining Tian, Changzhong Li, Rui Ma
Summary: This study established a systematic evaluation system for the organoleptic and nutritional quality of triploid rainbow trout, which consisted of 139 indexes. The study also analyzed the effects of different dietary lipid levels on the quality of the fish. The results showed that a high lipid diet could improve the appearance, texture, odor, and taste of the fish fillet, as well as increase the nutritional value.
Article
Biochemistry & Molecular Biology
Wei Zhao, Yu-Cai Guo, Ming-Yan Huai, Lily Li, Chi Man, Wolf Pelletier, Han-Lin Wei, Rong Yao, Jin Niu
Summary: The effects of dietary astaxanthin from different sources on growth, pigmentation, and physiological function in Oncorhynchus mykiss were studied. Astaxanthin supplementation improved pigmentation, growth, intestinal morphology, crude protein content in dorsal muscle, and decreased cholesterol levels and enzyme activity in plasma. Astaxanthin also enhanced antioxidant capacity and stimulated innate immune responses in fish.
Article
Fisheries
Nathan Huysman, Jill M. Voorhees, Eric Krebs, Michael E. Barnes
Summary: This study examined the effects of transferring rainbow trout from hard water to soft water and found that changes in water hardness did not significantly affect trout survival. There was also no significant change in glucose levels.
Article
Fisheries
Manuel Gesto, Kim Joao de Jesus Gregersen, Lars -Flemming Pedersen
Summary: The combined use of ozonation and foam fractionation significantly improves water quality in freshwater recirculating aquaculture systems (RAS), but has modest effects on the welfare of rainbow trout juveniles.
Article
Environmental Sciences
Gilles Tinant, Ineke Neefs, Krishna Das, Jean-Francois Rees, Yvan Larondelle, Cathy Debier
Summary: The study found that MeHg affects lipid metabolism in rainbow trout adipocytes, leading to intracellular accumulation of neutral lipids and up-regulation of adipocyte-specific and lipid-related genes.
Article
Fisheries
Lianqun Sun, Carole R. Engle, Ganesh Kumar, Jonathan van Senten
Summary: This study examines the retail sales of farm-raised trout in the United States from 2016 to 2021. The results show that sales increased steadily during this period, with the fastest growth observed in the West North Central region. The top market regions for trout sales were Seattle/Tacoma and Portland Oregon.
AQUACULTURE REPORTS
(2023)
Article
Agronomy
Eisa Maroufpoor, Younes Aminpour, Barzan Bahrami Kamangar, Jaume Puig Bargues
Summary: The effluents from fish farms are highly fertile for irrigation. This study aimed to evaluate the clogging rate of a drip irrigation system using effluent from a rainbow trout farm. Results showed that the clogging rate varied depending on the emitter type and discharge, with N4 showing the best performance and N12 and M8 showing the highest sensitivity to clogging. Overall, it is possible to use rainbow trout effluent in a drip irrigation system with pressure compensating emitters.
IRRIGATION SCIENCE
(2021)
Article
Engineering, Environmental
Amelie Kierkegaard, Marcus Sundbom, Bo Yuan, James M. Armitage, Jon A. Arnot, Steven T. J. Droge, Michael S. McLachlan
Summary: For alkylamines, the bioconcentration increases with chain length (<= C-14) and is influenced by pH value in water. In contrast, quaternary ammonium compounds show minimal pH dependence and have lower bioconcentration levels compared to alkylamines of the same chain length at pH 7.6.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Fisheries
Rebecca A. Dupre, Ryan Ardoin, Jesse Trushenski, Chris Jackson, Casey Grimm, Brennan Smith
Summary: The present research demonstrates that dietary exposure is an alternative route of geosmin uptake in Rainbow Trout fillets, leading to a significant increase in geosmin concentrations. This finding is important for further investigation of sensory quality and off-flavor mitigation strategies for farm-raised fish.
Article
Genetics & Heredity
Ali Ali, Rafet Al-Tobasei, Daniela Lourenco, Tim Leeds, Brett Kenney, Mohamed Salem
FRONTIERS IN GENETICS
(2019)
Article
Biochemistry & Molecular Biology
Walaa M. Shaalan, Nassr Allah Abd El-Hameid, Sabry S. El-Serafy, Mohamed Salem
FISH PHYSIOLOGY AND BIOCHEMISTRY
(2019)
Article
Biotechnology & Applied Microbiology
Pratima Chapagain, Brock Arivett, Beth M. Cleveland, Donald M. Walker, Mohamed Salem
Article
Biotechnology & Applied Microbiology
Ali Ali, Rafet Al-Tobasei, Daniela Lourenco, Tim Leeds, Brett Kenney, Mohamed Salem
Article
Biotechnology & Applied Microbiology
Ali Ali, Rafet Al-Tobasei, Daniela Lourenco, Tim Leeds, Brett Kennet, Mohamed Salem
Article
Biotechnology & Applied Microbiology
Pratima Chapagain, Donald Walker, Tim Leeds, Beth M. Cleveland, Mohamed Salem
Article
Biotechnology & Applied Microbiology
Rafet Al-Tobasei, Ali Ali, Andre L. S. Garcia, Daniela Lourenco, Tim Leeds, Mohamed Salem
Summary: Genomic evaluation is a feasible strategy to improve fillet yield and quality in rainbow trout, outperforming traditional family-based breeding values. Furthermore, even with low-density SNP panels, genomic predictions show higher predictive abilities than traditional methods.
Article
Genetics & Heredity
Ali Ali, Gary H. H. Thorgaard, Mohamed Salem
Summary: The study achieved a full-length transcriptome assembly of rainbow trout using Iso-Seq, identifying numerous previously unannotated transcripts and isoforms not mapped to the reference genome. Most genes had multiple isoforms, with intron retention and exon skipping being major alternative splicing events. The improved annotation allowed for the identification of characteristic alternative splicing events associated with various phenotypic traits in rainbow trout.
FRONTIERS IN GENETICS
(2021)
Article
Genetics & Heredity
Mohamed Salem, Rafet Al-Tobasei, Ali Ali, Brett Kenney
Summary: This study investigated the DNA methylation and gene expression in rainbow trout muscle, focusing on the association between methylation levels and muscle atrophy. The results showed that hypermethylation of CpG sites near the transcription start site was weakly/moderately associated with reduced gene expression, while hypermethylation of CpG sites in downstream regions was weakly associated with increased gene expression. Only a small number of CpGs were differentially methylated, and these were primarily associated with muscle atrophy. The study also identified potential epigenetic markers and genes involved in muscle atrophy in rainbow trout.
Article
Genetics & Heredity
Ridwan O. Ahmed, Ali Ali, Rafet Al-Tobasei, Tim Leeds, Brett Kenney, Mohamed Salem
Summary: The visual appearance of fish fillet is important for consumers' purchase decisions. This study used weighted, single-step GWAS to explore the genetic basis of fillet color variation in rainbow trout. Several genetic markers related to carotenoid metabolism, myoglobin homeostasis, protection against lipid oxidation, and muscle structural integrity were identified. These findings have significant implications for improving fillet color in rainbow trout.
Article
Cell Biology
Ali Ali, Walaa M. Shaalan, Rafet Al-Tobasei, Mohamed Salem
Summary: The study investigates the molecular mechanisms of muscle atrophy and compensatory growth in Nile tilapia through transcriptome profiling. It identifies genes involved in muscle atrophy, such as those related to the ubiquitin-proteasome and autophagy/lysosome systems. It also reveals genes promoting muscle hypertrophy and microRNAs associated with muscle recovery. The findings provide insights into muscle mass regulation and can be used in breeding programs and future mechanistic studies.
Article
Immunology
Ali Ali, Mohamed Salem
Summary: This study identified 13,503 long noncoding natural antisense transcripts (lncNATs) in rainbow trout using 134 RNA-Seq datasets. Most of the lncNATs showed strong positive correlation with their corresponding sense transcripts. Differential expression analysis revealed that lncNATs complementary to genes related to immunity, muscle contraction, proteolysis, and iron/heme metabolism were differentially expressed following infection. lncNATs complementary to hepcidin, a master negative regulator of plasma iron concentration, were downregulated in resistant fish on day 5 of bacterial infection.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Microbiology
Pratima Chapagain, Ali Ali, Mohamed Salem
Summary: In this study, RNA-Seq was used to compare the expression abundance of protein-coding genes in Flavobacterium psychrophilum (Fp) outer membrane vesicles (OMVs) and whole cells. OMVs were found to contain unique transcripts associated with bacterial translation machinery and histone-like DNA-binding proteins. The study also revealed the importance of OMVs in host-pathogen interactions and identified a highly expressed cell wall-associated hydrolase (CWH) gene in OMVs and susceptible fish.
Article
Fisheries
Walaa Shaalan, Nassr Allah Abd El-Hameid, Sabry S. El-Serafy, Mohamed Salem
Summary: This study characterized the calpain1, calpain2, cathepsin L, cathepsin B, and cathepsin H genes in the tilapia genome and examined their expressions in starved and fed tilapia. The results showed that these genes are involved in muscle atrophy and may serve as potential markers of tilapia muscle accretion.
TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2023)
Article
Microbiology
Ridwan O. Ahmed, Ali Ali, Tim Leeds, Mohamed Salem
Summary: This study identified specific bacterial biomarkers associated with fillet color in rainbow trout, providing potential for genetic selection to improve feed carotenoid retention and reddish-pink fillet color.
