Sökning: "Fiskfoder"

Visar resultat 1 - 5 av 16 uppsatser innehållade ordet Fiskfoder.

  1. 1. Replacement of fish protein in fish feed : effects on the yeast flora in the gut of Arctic charr (Salvelinus alpinus)

    Master-uppsats, SLU/Dept. of Animal Nutrition and Management

    Författare :Hanna Rydmark; [2023]
    Nyckelord :Microbiota; Saccharomyces cerevisiae; fishmeal; mussel meal; Mytilus edulis; aquaculture;

    Sammanfattning : The aim with this study was to investigate how feeds with different protein sources influence the levels and composition of the yeast flora in the gut of Arctic charr (Salvelinus alpinus). Arctic charr were fed for two weeks on a control diet (C) with fishmeal (FM) or experimental diets with 40% FM replaced by yeast (Saccharomyces cerevisiae) (Y), meal from blue mussel (Mytilus edulis) (M) or a feed with Baltic Sea originated protein; 33% FM, 33% mussel meal (MM) and 33% S. LÄS MER

  3. 2. Fatty acid composition in Arctic char (Salvelinus alpinus) fed with red yeast biomass : a comparison between large and small specimens

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Sofia Jacobsson; [2022]
    Nyckelord :Fatty acid composition; lipid content; oleaginous yeast; Arctic char Salvelinus alpinus ; aquaculture;

    Sammanfattning : Oleaginous yeast has shown to be a promising alternative to replace vegetable oils in fish feed. A problem in aquaculture is that different growth rates can be observed among farm-raised fish, supressing the productions full potential. When different growth rates are observed, it can be questioned if the fish assimilate the feed to the same extent. LÄS MER

  4. 3. Insects raised on food waste : a new source of feed and food?

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Elisabet Henriksson; [2021]
    Nyckelord :mealworm; food waste; insects as food; insects as feed; black soldier fly; nutrition; sustainable food; sustainable feed;

    Sammanfattning : An increasing global population demands an increase in food production, while human impact on the planet necessarily must be decreased to decelerate climate change. Resources currently lost as food waste could potentially be utilized to increase world food production amount and efficiency by feeding it to insects. LÄS MER

  5. 4. Design of fish feeding mechanism for Recirculation Aquaculture System (RAS)

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :NITHIN SIVAKUMAR; [2020]
    Nyckelord :Aquaculture; Hopper; Discrete elements; Mechanical design; Vattenbruk; Hopper; Diskreta element; Mekanisk design;

    Sammanfattning : Fish farming or Aquaculture is a growing food-producing industry to culture the fish in artificially constructed tanks. A large number of fishes are reared in tanks for 100-150 days and produce food for the population. LÄS MER

  7. 5. Life cycle assessment of DHA produced by microalgae using food waste : Assessing global warming, fossil energy use and effects on biodiversity

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Louise Bartek; [2020]
    Nyckelord :Life cycle assessment LCA ; docosahexaenoic acid DHA ; biodiversity loss; volatile fatty acids VFA ; global warming; sustainable development; Livscykelanalys LCA ; dokosahexaensyra DHA ; biodiversitet; flyktiga fettsyror VFA ; global uppvärmning; hållbar utveckling;

    Sammanfattning : Biodiversity is a key component for life on Earth since it contributes to clean water, fresh air and food security. Today, fatty fish farmed in aquaculture is the main Omega 3 source consumed by humans, including the essential fatty acid docosahexaenoic acid (DHA). DHA origin from plants and accumulate in fish via the marine food web. LÄS MER