Blar i Articles på forfatter "Ørnsrud, Robin"
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Apparent availability of zinc, selenium and manganese as inorganic metal salts or organic forms in plant-based diets for Atlantic salmon (Salmo salar)
silva, Marta Sofia; Kröckel, Saskia; Prabhu, Antony; Koppe, Wolfgang; Ørnsrud, Robin; Waagbø, Rune; Araujo, Pedro; Amlund, Heidi (Journal article; Peer reviewed, 2019)The composition of salmonid diets has changed from the use of mainly marine ingredients to increased use of plant ingredients, and this has an impact on the mineral content and availability. Minerals, like zinc (Zn), ... -
Assessing mineral availability in fish feeds using complementary methods demonstrated with the example of zinc in atlantic salmon
Silva, Marta Sofia; Stewart, Thea; Amlund, Heidi; Sloth, Jens Jørgen; Araujo, Pedro; Lock, Erik Jan Robert; Hogstrand, Christer; Ørnsrud, Robin; Waagbø, Rune; Prabhu, P. Antony Jesu (Peer reviewed; Journal article, 2021)Assessing the availability of dietary micro-minerals is a major challenge in mineral nutrition of fish species. The present article aims to describe a systematic approach combining different methodologies to assess the ... -
Biofortification of selenium in black soldier fly (Hermetia illucens) prepupae reared on seaweed or selenium enriched substrates
Ferrari, L.; Sele, Veronika; Silva, Marta Sofia; Bonilauri, P.; De Filippo, Filippo; Selmin, F.; Ørnsrud, Robin; Pinotti, L.; Ottoboni, M. (Peer reviewed; Journal article, 2022)Selenium (Se) is an essential trace element for livestock. The element can be supplemented to feed in inorganic or organic Se forms, where the chemical form in the diet affects the accumulation of Se in animal tissues. ... -
Developing a framework for open and FAIR data management practices for next generation risk- and benefit assessment of fish and seafood
Pineda-Pampliega, Javier; Bernhard, Annette; Hannisdal, Rita; Ørnsrud, Robin; Mathisen, Gro Haarklou; Solstad, Gisle; Rasinger, Josef (Peer reviewed; Journal article, 2022)Risk and risk–benefit assessments of food are complex exercises, in which access to and use of several disconnected individual stand-alone databases is required to obtain hazard and exposure information. Data obtained from ... -
Effect of levels and sources of dietary manganese on growth and mineral composition of post-smolt Atlantic salmon fed low fish meal, plant-based ingredient diets
Phillip, Antony Jesu Prabhu; Silva, Marta Sofia; Kröeckel, Saskia; Holme, May-Helen; Ørnsrud, Robin; Amlund, Heidi; Lock, Erik-Jan; Waagbø, Rune (Journal article; Peer reviewed, 2019)The impact of dietary manganese (Mn) levels and sources on the growth and mineral composition of post-smolt Atlantic salmon (Salmo salar) fed practical diets was studied. Seven experimental diets were prepared with graded ... -
Erucic acid (22:1n-9) in fish feed, farmed, and wild fish and seafood products
Sissener, Nini; Ørnsrud, Robin; Sanden, Monica; Frøyland, Livar; Remø, Sofie C.; Lundebye, Anne-Katrine (Journal article; Peer reviewed, 2018)The European Food Safety Authority (EFSA) published a risk assessment of erucic acid (22:1n-9) in 2016, establishing a Tolerable Daily Intake (TDI) for humans of 7 mg kg−1 body weight per day. This report largely excluded ... -
Feed-to-fillet transfer of selenite and selenomethionine additives to plant-based feeds to farmed atlantic salmon fillet
Berntssen, Marc; Lundebye, Anne-Katrine; Amund, Heidi; Sele, Veronika; Ørnsrud, Robin (Journal article; Peer reviewed, 2019)This study investigated the transfer kinetics of dietary selenite and selenomethionine (SeMet) to the fillet of farmed Atlantic salmon (Salmo salar). The uptake and elimination rate constants of the two selenium (Se) forms ... -
Identification of ethoxyquin and its transformation products in salmon after controlled dietary exposure via fish feed
Merel, Sylvain Alain Yves; Regueiro, Jorge; Berntssen, Marc; Hannisdal, Rita; Ørnsrud, Robin; Negreira, Noelia (Journal article; Peer reviewed, 2019)Ethoxyquin (EQ) is an additive present in fish feed and its fate in fish should be carefully characterized due to food safety concerns regarding this compound. Therefore, the objective of this work was to identify the ... -
In vitro digestion method to evaluate solubility of dietary zinc, selenium and manganese in salmonid diets
Silva, Marta Sofia; Antony Jesu Prabhu, Antony Jesu Prabhu; Ørnsrud, Robin; Sele, Veronika; Kröckel, Saskia; Sloth, Jens Jørgen; Amlund, Heidi (Peer reviewed; Journal article, 2020)The determination of dietary mineral solubility is one of the main steps in the evaluation of their availability for a given species. -
Multi-tissue proteogenomic analysis for mechanistic toxicology studies in non-model species
Lin, M.S.; Varunjikar, Madhushri Shrikant; Lie, Kai Kristoffer; Søfteland, Liv Ingeborg Rosvoll; Dellafiora, L.; Ørnsrud, Robin; Sanden, Monica; Berntssen, Marc HG; Dorne, J.L.C.M.; Bafna, V.; Rasinger, Josef (Peer reviewed; Journal article, 2023)New approach methodologies (NAM), including omics and in vitro approaches, are contributing to the implementation of 3R (reduction, refinement and replacement) strategies in regulatory science and risk assessment. In this ... -
Polystyrene nanoplastics enhance the toxicological effects of DDE in zebrafish (Danio rerio) larvae
Varshney, Shubham; Gora, Adnan Hussain; Viswanath, Kiron; Siriyappagouder, Prabhugouda; Dahle, Dalia; Kögel, Tanja; Ørnsrud, Robin; Olsvik, Pål Asgeir (Peer reviewed; Journal article, 2022)Anthropogenic releases of plastics, persistent organic pollutants (POPs), and heavy metals can impact the environment, including aquatic ecosystems. Nanoplastics (NPs) have recently emerged as pervasive environmental ... -
Quality of fish sludge as fertiliser to spring cereals: Nitrogen effects and environmental pollutants
Brod, Eva; Henriksen, Trond Maukon; Ørnsrud, Robin; Eggen, Trine (Peer reviewed; Journal article, 2023)The aim of this study was to contribute to development of organic fertiliser products based on fish sludge (i.e. feed residues and faeces) from farmed smolt. Four dried fish sludge products, one liquid digestate after ... -
A ranking method of chemical substances in foods for prioritisation of monitoring, based on health risk and knowledge gaps
Mathisen, Gro Haarklou; Alexander, Jan; Fæste, Christiane Kruse; Husøy, Trine; Knutsen, Helle Katrine; Ørnsrud, Robin; Steffensen, Inger-Lise (Peer reviewed; Journal article, 2020)Chemical contaminants are present in all foods. Data on the occurrence of contaminants in foods that are often consumed or contain high contaminant concentrations are critical for the estimation of exposure and evaluation ... -
Replacing fish meal with insect meal in the diet of Atlantic salmon (Salmo salar) does not impact the amount of contaminants in the feed and it lowers accumulation of arsenic in the fillet
Biancarosa, Irene; Sele, Veronika; Belghit, Ikram; Ørnsrud, Robin; Lock, Erik-Jan; Amlund, Heidi (Journal article; Peer reviewed, 2019)Insects are promising sources of protein and lipid in feeds for farmed animals. In the European Union, the use of insect meal (IM) and insect oil is permitted in fish feed. However, the European Food Safety Authority has ... -
Safe limits of selenomethionine and selenite supplementation to plant-based Atlantic salmon feeds
Berntssen, Marc; Betancor, Mónica B.; Caballero, María José; Hillestad, Marie; Rasinger, Josef Daniel; Hamre, Kristin; Sele, Veronika; Amlund, Heidi; Ørnsrud, Robin (Journal article; Peer reviewed, 2018)The use of plant-based feeds warrants the supplementation with selenium (Se) to cover the requirement for Atlantic salmon. Depending on its chemical form, Se is a trace element with a narrow range between requirement and ... -
Selenium and selenium species in feeds and muscle tissue of Atlantic salmon
Sele, Veronika; Ørnsrud, Robin; Sloth, Jens Jørgen; Berntssen, Marc; Amlund, Heidi (Journal article; Peer reviewed, 2018)Selenium (Se) is an essential element for animals, including fish. Due to changes in feed composition for Atlantic salmon (Salmo salar), it may be necessary to supplement feeds with Se. In the present work, the transfer ... -
Subchronic dietary exposure to ethoxyquin dimer induces microvesicular steatosis in male BALB/c mice
Bernhard, Annette; Rasinger, Josef Daniel; Wisløff, Helene; Kolbjørnsen, Øyvor; Myrmel, Lene Secher; Berntssen, Marc; Lundebye, Anne-Katrine; Ørnsrud, Robin; Madsen, Lise (Journal article; Peer reviewed, 2018)The use of the synthetic antioxidant ethoxyquin (6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline; EQ) in animal feed results in the presence of EQ residues and metabolites, including the EQ dimer (1,8′-bi(6-ethoxy-2,2,4-tr ... -
Tolerance and dose-response assessment of subchronic dietary ethoxyquin exposure in Atlantic salmon (Salmo salar L.)
Bernhard, Annette; Rasinger, Josef Daniel; Betancor, Mónica B.; Caballero, María José; Berntssen, Marc; Lundebye, Anne-Katrine; Ørnsrud, Robin (Journal article; Peer reviewed, 2019)Ethoxyquin (EQ; 6-Ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline) has been used as an antioxidant in feed components for pets, livestock and aquaculture. However, possible risks of EQ used in aquafeed for fish health have not ... -
Use of (Q)SAR genotoxicity predictions and fuzzy multicriteria decision-making for priority ranking of ethoxyquin transformation products
Rasinger, Josef; Frenzel, F.; Braeuning, A.; Bernhard, Annette; Ørnsrud, Robin; Merel, Sylvain Alain Yves; Berntssen, Marc HG (Peer reviewed; Journal article, 2022)Ethoxyquin (EQ; 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline) has been used as an antioxidant in feed for pets and food-producing animals, including farmed fish such as Atlantic salmon. In Europe, the authorization for ... -
Zinc uptake in fish intestinal epithelial model RTgutGC: Impact of media ion composition and methionine chelation
Prabhu, Antony; Stewart, Theodora; Carreiro-Silva, Marina; Amlund, Heidi; Ørnsrud, Robin; Lock, Erik-Jan; Waagbø, Rune; Hogstrand, Christer (Journal article; Peer reviewed, 2018)Apical uptake of zinc as ionic Zn(II) or as Zn-methionine (Zn-Met) was studied in RTgutGC cell line in vitro under media compositions mirroring the gut luminal ionic concentration of freshwater (FW) and seawater (SW) ...