Sökning: "Oncorhynchus mykiss"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Oncorhynchus mykiss.

  1. 1. Rörelseaktivitet hos regnbågar (Oncorhynchus mykiss) med olika antal eumelaninfläckar, utsatta för stressande sportfiske

    Kandidat-uppsats,

    Författare :Enar Gesslin; [2023]
    Nyckelord :Fish behaviour; Appearance; Heritability; Genetic correlation; Animal personalities; Behaviour; Corticosteroids; Melanin; Pigment; Syndromes; Stress response; Salmonid fish; Angling vulnerability; Fiskars beteende; Utseende; Ärftlighet; Genetisk korrelation; Djurs personlighet; Beteende; Kortikosteroider; Melanin; Pigment; Syndrom; Stressrespons; Laxfiskar; Sportfiske; Oncorhynchus mykiss;

    Sammanfattning : Rainbow trout (Oncorhynchus mykiss) are introduced in large parts of the world and are commonly farmed for consumption as well as a valued sport fish. Many species of salmonids show large intraspecific variation in pigmentation, which has been shown to correlate with stress response and several other behavioral traits. LÄS MER

  3. 2. LOCALISATION OF THE INTERSTITIAL CELLS OF CAJAL IN RAINBOW TROUT

    Kandidat-uppsats, Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Författare :Ellen Nilsson; [2022-07-06]
    Nyckelord :Interstitial cells of Cajal; Immunohistochemistry; Paraffin section; Gastrointestinal; Slow waves;

    Sammanfattning : The interstitial cells of Cajal (ICC) are primarily placed in the gastrointestinal tract, where they play a crucial role in the initiation and control of motility by operating as pacemaker cells. They also have a role in neurotransmission. ICC’s functions have been investigated, especially in mammals, but less is known about the cells in fish. LÄS MER

  4. 3. Potentiell koppling mellan elektrolys och landbaseradfiskodling : En analys av behov och tillgång på syrgas och värme

    Kandidat-uppsats, Högskolan i Gävle/Miljövetenskap

    Författare :Per Hansen; [2021]
    Nyckelord :RAS; PEM; Recirculating aquaculture system; oxygen consumption; oxygen gas; hydrogen; tilapia; rainbow trout; salmon; stocking density; low grade heat; RAS; PEM; Landbaserad fiskodling; syreförbrukning; syrgas; vätgas; tilapia; regnbåge; lax; individtäthet; lågvärdig värme;

    Sammanfattning : Det kommer ske en stor utbyggnad av elektrolys för produktion av vätgas i Sverigeoch övriga världen. För att sänka produktionskostnaden och därmed göra vätgasenbilligare analyserar denna rapport vilket behov av syrgas och värme som en landbaserad fiskodling har, samt hur mycket syrgas och värme fiskodlingen skulle behövaköpa från en elektrolysör. LÄS MER

  5. 4. Filamentous fungus Paecilomyces variotii in feed for Rainbow trout (Oncorhynchus mykiss) : assessment of apparent digestibility and early signs of inflammation

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

    Författare :Amanda Dahlberg; [2019]
    Nyckelord :Rainbow trout; single cell protein; Paecilomyces variotii; apparent digest-ibility coefficient; inflammation;

    Sammanfattning : Aquaculture production has been increasing rapidly over the last few decades and therefore the amount of feed needed for the increasing production is also on the rise. Salmonids and other farmed carnivorous fish require high amount of protein in their diets, which is currently supplied mostly by fish meal or soy bean. LÄS MER

  7. 5. Baltic blue mussel (Mytilus edulis L.) and black soldier fly (Hermetia. illucens) combined with pea protein concentrate as protein sources in feed for rainbow trout (Oncorhynchus mykiss)

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

    Författare :Xiaoqing Cui; [2019]
    Nyckelord :aquaculture; rainbow trout; Baltic blue mussel; black solider fly larvae; digestibility; protein; fishmeal replacement;

    Sammanfattning : A feeding trial was conducted for 9 weeks to test the growth performance, nutrient retention and digestibility in rainbow trout (Oncorhynchus mykiss) in order to assess the potential of Baltic blue mussel meal (Mytilus edulis L) and black solider fly larvae (Hermetia illucens) meal as protein sources. The dietary treatments consisted of one control diet based on high quality fishmeal, one control diet based on pea protein concentrate for testing dietary palatability and two fishmeal-free experimental diets where approximately 20% of the crude protein from the fishmeal was replaced with the protein from either de-shelled blue mussel meal or larvae meal on a dry matter basis. LÄS MER