Article
Fisheries
Zhi Weng Josiah Poon, Xueyan Shen, Joseph Angelo Uichanco, Celestine Terence, Shi Wei Gavin Chua, Jose A. Domingos
Summary: This study reveals the molecular mechanisms behind the enhancement of red coloration in Malabar snappers by supplementing feed with astaxanthin, and provides a foundation for breeding and aquaculture practices to produce fish with desired traits favored by consumers.
Article
Fisheries
Chunyan Zhang, Wenxiang Yao, Xiaoqin Li, Zhipeng Duan, Jiangyu Dang, Kailin Cao, Xiangjun Leng
Summary: The study found that adding tea polyphenols and surfactants to the rainbow trout diet effectively improved astaxanthin deposition and antioxidant capacity, while sodium taurocholate mainly promoted astaxanthin deposition.
AQUACULTURE NUTRITION
(2021)
Article
Fisheries
Mojdeh Besharat, Houman Rajabi Islami, Mehdi Soltani, Seyed Abdolmajid Mousavi
Summary: The study found that adding 75 mg/kg of nanoliposome-coated astaxanthin to the rainbow trout diet can have a positive impact on growth indices, reduce liver enzyme activity, and improve skin and fillet pigmentation.
AQUACULTURE RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Shisi Xing, Dan Deng, Wen Wen, Wei Peng
Summary: This study investigated the differences in gene expression in the female midgut between mated and virgin Drosophila suzukii. The results showed that mating had significant effects on metabolism and immune system in the midgut, which may contribute to supplying the female with nutrients and energy required for egg production.
Article
Fisheries
Yawen Zhang, Chen Qian, Jin Huang, Jinghao Li, Xiaodong Jiang, Zhengyou Li, Yongxu Cheng, Jiayao Li
Summary: This study investigated the effects of dietary natural astaxanthin derived from Haematococcus pluvialis on the growth performance, pigmentation, digestion, antioxidant capacity, immunity, and response to air exposure stress of juvenile red swamp crayfish. The results showed that dietary astaxanthin significantly improved the survival rate and weight gain rate of juvenile crayfish. It also enhanced pigmentation and increased carotenoid content in the carapace, muscle, and ovaries. Astaxanthin supplementation increased the activity of digestive enzymes and antioxidant enzymes, and reduced oxidative stress markers in the crayfish. The optimal dietary natural astaxanthin content for juvenile red swamp crayfish was found to be between 63.55 to 84.40 mg kg-1.
Article
Fisheries
Ryan B. Shartau, Heindrich N. Snyman, Lenora Turcotte, Pearse McCarron, Julia C. Bradshaw, Stewart C. Johnson
Summary: This study compared the response of Atlantic and Chinook Salmon to microcystin exposure, and found that acute exposure did not cause NPLD. However, long-term exposure may be associated with higher concentrations of microcystin in food, drinking of contaminated seawater, and interactions with other marine toxins.
JOURNAL OF FISH DISEASES
(2022)
Article
Plant Sciences
Wenbing Su, Changqing Zhu, Zhongqi Fan, Mingkun Huang, Han Lin, Xiuping Chen, Chaojun Deng, Yongping Chen, Yidan Kou, Zhihong Tong, Yaling Zhang, Changjie Xu, Shaoquan Zheng, Jimou Jiang
Summary: This study investigated the mechanisms of fruit pigment formation and its relationship with different loquat species through metabolomics and transcriptomics analyses. The results showed that abundant carotenoid deposition in cultivated loquat peel is correlated with the strong expression of PSY, ZDS, and ZEP genes, while the accumulation of anthocyanins in wild loquat peel is tightly associated with upregulated expressions of F3H, F3'H, ANS, CHS, and CHI genes.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Fisheries
Esmaeil Pirali Kheirabadi, Pezhman Hosseini Shekarabi, Foroud Yadollahi, Mehdi Soltani, Esfandeyar Najafi, Juhani von Hellens, Carlos Luna Flores, Kheibar Salehi, Caterina Faggio
Summary: This study investigated the effects of red yeast (Phaffia rhodozyma) as an additive in rainbow trout feed on performance, carcass composition, antioxidant activity, and fillet pigmentation. The results showed that the addition of red yeast can improve the growth performance, antioxidant activity, and pigmentation of rainbow trout fillets.
AQUACULTURE REPORTS
(2022)
Article
Immunology
Furong Deng, Di Wang, Thomas P. Loch, Fuguang Chen, Tongyan Lu, Yongsheng Cao, Dan Fan, Shaowu Li
Summary: This study utilized RNA-seq analysis to investigate the molecular mechanism of immune response in rainbow trout spleen during Flavobacterium psychrophilum infection. The results revealed key signaling pathways and provided valuable insights for future research on prevention and control of bacterial coldwater disease in salmon culture.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Fisheries
Diane G. Elliott, Carla M. Conway, Constance L. McKibben, Ashley H. Mackenzie, Lucas M. Hart, Maya L. Groner, Maureen K. Purcell, Jacob L. Gregg, Paul K. Hershberger
Summary: The study showed that juvenile Chinook salmon from the Yukon River are more susceptible to Ichthyophonus sp. infections compared to those from the Salish Sea, leading to higher mortality and infection rates. Infection in Yukon River stock fish was persistent and progressed rapidly, while infections in Salish Sea-origin fish were largely transient and cleared relatively quickly. These results suggest that a longer-standing host-pathogen relationship exists among Salish Sea Chinook salmon, resulting in decreased disease susceptibility compared to Yukon River conspecifics.
DISEASES OF AQUATIC ORGANISMS
(2021)
Article
Agriculture, Dairy & Animal Science
Evan J. Wilson, Andrew M. Shedlock
Summary: DNA sequence variation in the MHC genes of Chinook salmon does not have a significant impact on immune health. Wild and hatchery salmon have similar immune health levels, suggesting that genetic diversity can be used as a proxy for maintaining overall genetic variability in populations.
Article
Zoology
W. M. Twardek, K. L. Knight, C. H. Reid, R. J. Lennox, S. J. Cooke, N. W. R. Lapointe
Summary: This study investigated the migration behavior of Chinook salmon in the upper Yukon River and found that the salmon had high survival rates, migrated throughout the day, and larger and late-arriving salmon had faster migration rates. Male salmon were more likely to engage in non-direct homing movements.
CANADIAN JOURNAL OF ZOOLOGY
(2022)
Article
Agriculture, Multidisciplinary
Debao Yi, Hongna Zhang, Biao Lai, Liqin Liu, Xiaolu Pan, Zhiling Ma, Yicheng Wang, Jianghui Xie, Shengyou Shi, Yongzan Wei
Summary: The red pericarp longan has a strong red hue due to the accumulation of cyanidin derivatives in its pericarp. Compared to conventional longan, specific anthocyanins are significantly increased in red pericarp longan, and some structural and controlling genes are upregulated, potentially playing important roles in the biosynthetic pathway of anthocyanin.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Agronomy
Gileung Lee, Jae Wan Park, Jisu Park, Ah-Reum Han, Min Jeong Hong, Yeong Deuk Jo, Jin-Baek Kim, Sang Hoon Kim, Hong-Il Choi
Summary: Proanthocyanidins (PAs) are phytochemicals that accumulate abundantly in red pericarp (RP) rice and have beneficial health effects. Comparative transcriptome analysis of rice grains harvested at different developmental stages from RP and white pericarp rice revealed upregulation of PA synthesis-related genes at 14 DAF in RP rice and the presence of oxidation-related enzyme genes at 28 DAF in RP rice. These findings provide insights into PA biosynthesis in rice and contribute to further understanding of the molecular mechanisms involved.
Article
Marine & Freshwater Biology
Zhongyuan Zhou, Hongmei Chen, Yuanyuan Li, Qian Liu, Keyu Lu, Xiaoshan Zhu, You Wang
Summary: In this study, we investigated the effects of BDE-47 on cell viability, morphology, cell cycle, and apoptosis. The results showed that BDE-47 significantly decreased cell viability and induced morphological alterations. Cell cycle arrest and apoptosis were also observed. Transcriptome analysis and protein analysis provided further evidence for the involvement of specific signaling pathways in regulating the cell cycle and apoptosis.
AQUATIC TOXICOLOGY
(2022)
Article
Fisheries
Mingxu Xie, Yadong Xie, Yu Li, Wei Zhou, Zhen Zhang, Yalin Yang, Rolf Erik Olsen, Chao Ran, Zhigang Zhou
Summary: The study suggests that low-level uPP addition can enhance fish meal replacement, while 5% uPP in the diet has negative effects on gut and liver health of common carp and disrupts intestinal microbiota.
AQUACULTURE REPORTS
(2021)
Article
Multidisciplinary Sciences
Qianwen Ding, Zhen Zhang, Yu Li, Hongliang Liu, Qiang Hao, Yalin Yang, Einar Ringo, Rolf Erik Olsen, Jihong Liu Clarke, Chao Ran, Zhigang Zhou
Summary: Propionate induces intestinal damage in zebrafish fed a high-fat diet, associated with oxidative stress and Sod2 propionylation. Sirt3 plays a crucial role in regulating Sod2 activity by modulating de-propionylation, leading to intestinal oxidative stress and changes in gut microbiota composition. This study highlights the potential mechanism of intestinal problems related to high propionate levels in zebrafish.
Article
Fisheries
Signe Dille Lovmo, Paul Whatmore, Henrik Sundh, Trygve Sigholt, Angelico Madaro, Tora Bardal, Rolf Erik Olsen
Summary: This study investigates the dietary needs and benefits of highly unsaturated fatty acids (HUFA) for Atlantic salmon, finding that a low HUFA diet can sustain growth and intestinal health under controlled conditions but is impaired after chronic stress. Increasing levels of EPA and DHA can strengthen the intestinal barrier response to chronic stress.
Article
Fisheries
Mingxu Xie, Yadong Xie, Yu Li, Wei Zhou, Zhen Zhang, Yalin Yang, Rolf Erik Olsen, Einar Ringo, Chao Ran, Zhigang Zhou
Summary: Probiotics are widely used in aquafeeds to improve fish health and resistance to pathogens. This study examined the effects of a stabilized fermentation product of Cetobacterium somerae on zebrafish gut, liver health, and antiviral immunity. Results showed that the dietary supplement improved liver and gut health while enhancing antiviral immunity in zebrafish.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Nutrition & Dietetics
Qianwen Ding, Qiang Hao, Qingshuang Zhang, Yalin Yang, Rolf Erik Olsen, Einar Ringo, Chao Ran, Zhen Zhang, Zhigang Zhou
Summary: This study investigated the effects of docosahexaenoic acid (DHA) on fatty liver in zebrafish. The results showed that supplementation of DHA reduced hepatic lipid synthesis and promoted lipid beta-oxidation through Cyclin D1 inhibition. Furthermore, DHA facilitated lipid beta-oxidation through gut microbiota. These findings reveal the lipid-lowering effects of DHA and emphasize the importance of fatty acid composition in formulating high-fat diets for fish.
FRONTIERS IN NUTRITION
(2022)
Article
Fisheries
C. Klykken, A. K. Reed, A. S. Dalum, R. E. Olsen, M. K. Moe, K. J. K. Attramadal, L. Boissonnot
Summary: There is a growing concern for fish health and welfare in the salmon industry in Norway. The study found that nephrocalcinosis, characterized by mineral deposits in the kidneys, is common and varies in severity among Atlantic salmon. Most fish had mild forms of nephrocalcinosis with minimal tissue damage, while severely affected fish showed almost complete loss of kidney structure. Mineral deposits mainly consisted of amorphous carbonate apatite, and fish with nephrocalcinosis also exhibited imbalances in plasma chemistry, indicating disturbed osmoregulation and increased stress levels.
Article
Fisheries
Thomas W. K. Fraser, Tom J. Hansen, Sofie C. Remo, Rolf Erik Olsen, Per Gunnar Fjelldal
Summary: Interspecific hybridisation can improve the performance of sterile triploid salmonids, but it also leads to welfare issues, with only fillet coloration being improved.
Article
Fisheries
R. Magalhaes, N. Martins, F. Fontinha, A. Couto, C. R. Serra, R. A. Santos, E. Olsen, H. Peres, A. Oliva-Teles
Summary: The present study investigates the effects of different diet compositions on the oxidative status, histomorphology of liver and intestine, and intestinal microbiota modulation in gilthead sea bream juveniles. The results show that ARA-rich diets reduce liver and intestine lipid peroxidation, while DHA-rich diets increase the activity of antioxidant enzymes in the liver. Additionally, dietary starch improves the oxidative stress index in the liver and has positive effects on glutathione and lipid peroxidation in the intestine. Fish fed high starch diets also experience hepatocyte hypertrophy and alterations in nuclei position. Compared to DHA diets, ARA diets result in reduced diversity of intestinal microbiota. In conclusion, high dietary ARA provides protection to the liver and intestine of gilthead sea bream juveniles, and the balanced ratio of ARA/DHA in the diet has important effects on antioxidant status and intestinal microbiota diversity.
Article
Biochemical Research Methods
Viswanath Kiron, Purushothaman Kathiresan, Jorge M. O. Fernandes, Mette Sorensen, Ghana K. Vasanth, Qingsong Lin, Qifeng Lin, Teck Kwang Lim, Dalia Dahle, Jorge Dias, Viviane Verlhac Trichet
Summary: The study investigates the effects of a dietary health additive on intestinal inflammation in Atlantic salmon by profiling the intestine mucus proteome. The results indicate that the dietary additive reduces the severity of inflammation and the number of altered proteins. This study provides insights into the limited understanding of the inflammation-associated proteome in fish and suggests the potential of dietary approaches in preventing organ dysfunction.
JOURNAL OF PROTEOMICS
(2022)
Article
Fisheries
Mingxu Xie, Qiang Hao, Rolf Erik Olsen, Einar Ringo, Yalin Yang, Zhen Zhang, Chao Ran, Zhigang Zhou
Summary: This study evaluated the effects of a stabilized fermentation product of Cetobacterium somerae (XMX-1) on the growth performance, gut, and liver health of common carp. The results showed that the addition of XMX-1 reduced serum lipopolysaccharide and diamine oxidase activity, increased intestinal total superoxide dismutase activity, and regulated the expression of certain genes. Furthermore, XMX-1 supplementation decreased serum alanine aminotransferase and liver triacylglycerol levels, and influenced the expression of genes related to liver lipid metabolism. L-XMX-1 at a level of 3 g/kg had the best effect on fish health.
AQUACULTURE REPORTS
(2022)
Article
Fisheries
Signe Dille Lovmo, Henrik Sundh, Paul Whatmore, Malene Fosse Nordvi, Trygve Sigholt, Angelico Madaro, Tora Bardal, Rolf Erik Olsen
Summary: The study found that feeding Atlantic salmon a high EPA diet improved intestinal health, while low HUFA fed fish had lower energy utilization. Chronic stress led to intestinal barrier damage and inflammation.
Article
Biochemistry & Molecular Biology
Peng Yin, Bjorn Thrandur Bjornsson, Per Gunnar Fjelldal, Takaya Saito, Sofie Charlotte Remo, Rolf Brudvik Edvardsen, Tom Hansen, Sandeep Sharma, Rolf Erik Olsen, Kristin Hamre
Summary: Accumulating evidence suggests a close relationship between oxidative stress and growth rate in fish, but the underlying mechanisms are not clear. This study investigated the combined effect of dietary antioxidants and growth hormone (GH) on the redox status of liver and muscle in Atlantic salmon. The results show that GH implantation decreases vitamin C and E levels, increases oxidative stress in the liver, and affects the expression of genes and pathways related to antioxidant enzymes and redox balance. Dietary antioxidants do lower oxidative stress but have no effect on the growth rate.
Article
Fisheries
S. Rider, V. Verlhac-Trichet, D. Constant, E. Chenal, S. Etheve, B. Riond, H. Schmidt-Posthaus, R. Schoop
Summary: The vitamin D endocrine system is essential for regulating the expression of various genes in vertebrates, including those related to bone health, growth, nutrient metabolism, and immunity. Salmonids have high requirements for vitamin D compared to other aquaculture species. However, factors such as aquafeed composition, growth in seawater, and production challenges may lead to suboptimal activation of vitamin D hormone in fish.
Article
Fisheries
Ester Santigosa, Rolf Erik Olsen, Angelico Madaro, Viviane Verlhac Trichet, Ian Carr
Summary: This study confirms the effects of partially or fully replacing fish oil (FO) with microalgal oil (AO) on growth, muscle fatty acid profiles, and muscle quality of farmed Atlantic salmon, contributing to the sustainable growth of aquaculture. EPA and DHA digestibility was greater than 96% when the lipid source in the diet was changed. Sensory characteristics of raw fish fillets were similar among treatments, indicating no impact on consumers. Overall, the results suggest that the tested AO enables sustainable growth of Atlantic salmon aquaculture by maintaining EPA and DHA levels in fish fillets while reducing the marine footprint of aquafeeds.
JOURNAL OF THE WORLD AQUACULTURE SOCIETY
(2023)
Article
Food Science & Technology
Yousri Abdelhafiz, Adnan Hussain Gora, Saima Rehman, Soumitra Chowdhury, Youngjin Park, Saraswathy Bisa, Viviane Verlhac Trichet, Jorge M. O. Fernandes, Mette S. orensen, Viswanath Kiron
Summary: Dietary polyphenols improve gut health through direct effects on the host's intestinal barrier, antioxidant and immune systems, as well as through the action of metabolites produced by the microbiota. Specific polyphenols like gallic acid, curcumin, resveratrol, quercetin, daidzein, and anthocyanins have been found to prevent or treat intestinal inflammation and brain disorders by chelating metals and scavenging free radicals. However, only a small fraction of polyphenol catabolites are bioavailable, with the majority being metabolized by the gut microbiota.
JOURNAL OF FUNCTIONAL FOODS
(2023)