Browsing Bergen Open Research Archive by Author "Amlund, Heidi"
Now showing items 1-12 of 12
-
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 (Peer reviewed; Journal article, 2019-03)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 (Journal article; Peer reviewed, 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 ... -
Chemical characterization of 21 species of marine macroalgae common in Norwegian waters: benefits of and limitations to their potential use in food and feed
Biancarosa, Irene; Belghit, Ikram; Bruckner, Christian Guido; Liland, Nina Sylvia; Waagbø, Rune; Amlund, Heidi; Heesch, Svenja; Lock, Erik-Jan (Peer reviewed; Journal article, 2018-01-18)BACKGROUND: In the past few years, much effort has been invested into developing a new blue economy based on harvesting, cultivating and processing marine macroalgae in Norway. Macroalgae have high potential for a wide ... -
The chemical composition of two seaweed flies (Coelopa frigida and Coelopa pilipes) reared in the laboratory
Biancarosa, Irene; Liland, Nina Sylvia; Day, Nicola; Belghit, Ikram; Amlund, Heidi; Lock, Erik-Jan; Gilburn, Andre S. (Peer reviewed; Journal article, 2018-05-29)Two species of seaweed flies, Coelopa frigida and Coelopa pilipes, were reared in the laboratory and their larvae were sampled for composition of amino acids, fatty acids and elements. The larvae were grown on two different ... -
Chronic Consumption of Farmed Salmon Containing Persistent Organic Pollutants Causes Insulin Resistance and Obesity in Mice
Ibrahim, Mohammad Madani; Fjære, Even; Lock, Erik-Jan; Naville, Danielle; Amlund, Heidi; Meugnier, Emmanuelle; Battistoni, Brigitte Le Magueresse; Frøyland, Livar; Madsen, Lise; Jessen, Niels; Lund, Sten; Vidal, Hubert; Ruzzin, Jérôme (Peer reviewed; Journal article, 2011-09-23)Background: Dietary interventions are critical in the prevention of metabolic diseases. Yet, the effects of fatty fish consumption on type 2 diabetes remain unclear. The aim of this study was to investigate whether a diet ... -
Dietary methylmercury alters the proteome in Atlantic salmon (Salmo salar) kidney
Nøstbakken, Ole Jakob; Martin, Samuel A. M.; Cash, Phillip; Torstensen, Bente Elisabeth; Amlund, Heidi; Olsvik, Pål A. (Peer reviewed; Journal article, 2011-12-19)Background: Methylmercury (MeHg) is an environmental contaminant most known for its severe neurotoxic effects. Although accumulation of MeHg tends to be several folds higher in kidney compared to other tissues, studies on ... -
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 (Peer reviewed; Journal article, 2019-10-15)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 ... -
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 (Journal article; Peer reviewed, 2020)Background The determination of dietary mineral solubility is one of the main steps in the evaluation of their availability for a given species. Methods This study proposed an in vitro digestion method (acidic and ... -
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 (Peer reviewed; Journal article, 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 ... -
Speciation of zinc in fish feed by size exclusion chromatography coupled to inductively coupled plasma mass spectrometry – using fractional factorial design for method optimisation and mild extraction conditions
Silva, Marta Sofia; Sele, Veronika; Sloth, Jens Jørgen; Araujo, Pedro; Amlund, Heidi (Peer reviewed; Journal article, 2019-01)Zinc (Zn) is an element essential to all living organisms and it has an important role as a cofactor of several enzymes. In fish, Zn deficiency has been associated with impaired growth, cataracts, skeletal abnormalities ... -
Tracing simultaneous cadmium accumulation from different uptake routes in brown crab Cancer pagurus by the use of stable isotopes
Wiech, Martin; Amlund, Heidi; Jensen, Karl Andreas; Aldenberg, Tom; Duinker, Arne; Måge, Amund (Peer reviewed; Journal article, 2018-05-24)High concentrations of cadmium in brown crab are an issue of food safety, and large variations between different areas have been found. To investigate the relative importance of dietary and aqueous uptake regarding the ... -
Zinc uptake in fish intestinal epithelial model RTgutGC: Impact of media ion composition and methionine chelation
Prabhu, Antony; Stewart, Theodora; Silva, Marta Sofia; Amlund, Heidi; Ørnsrud, Robin; Lock, Erik-Jan; Waagbø, Rune; Hogstrand, Christer (Peer reviewed; Journal article, 2018-12)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) ...