Sökning: "rainbow trout"

Visar resultat 1 - 5 av 55 avhandlingar innehållade orden rainbow trout.

  1. 1. Eating quality of rainbow trout

    Författare :Lisbeth Johansson; Uppsala universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 2. Quality of Frozen Rainbow Trout. Effects of different freezing and thawing treatments

    Författare :Katarina Nilsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; membrane disintegration; liquid loss; centrifuged tissue fluid; fish; lysosomal enzyme; frozen storage; glazing; freezing; sensory quality; rainbow trout; thawing;

    Sammanfattning : The effects of different freezing, frozen storage and thawing treatments on the muscle tissue of farmed rainbow trout (Oncorhychus mykiss) were studied. Biochemical measurements were correlated to sensory estimated quality changes. The freezing process affects the proteins, the lipid fractions and the membrane structures in the fish muscle. LÄS MER

  4. 3. Dietary L-Tryptophan Suppresses Aggression and Stress Responsiveness in Juvenile Rainbow Trout (Oncorhynchus mykiss) : The Role of Brain Serotonin and Plasma Melatonin

    Författare :Olivier Lepage; Svante Winberg; József Haller; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; serotonin; brain; fish; rainbow trout; Oncorhynchus mykiss; feed; stress; cortisol; melatonin; behaviour; aggression; Biologi; Biology; Biologi;

    Sammanfattning : Juvenile rainbow trout (Oncorhynchus mykiss) fed L-tryptophan (TRP) supplemented feed for 7 days show a suppression of aggressive behaviour along with a reduction in post-stress plasma cortisol levels. However, 3 days of elevated dietary TRP does not have any effects on either aggressive behaviour or post-stress plasma cortisol levels. LÄS MER

  5. 4. Lipid Composition and Deterioration in Light and Dark Muscle of Rainbow Trout (Oncorhynchus mykiss)

    Författare :Torbjörn Ingemansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Docosahexaenoic acid; lipid classes; fatty acids; muscle lipids; Palmitic acid; trout; differences; lipids; fish;

    Sammanfattning : Nutritionally valuable lipids, including lipid classes and their fatty acids in light and dark muscle, have been determined and analyzed in farmed rainbow trout. Dark muscle was found to have a higher content of total lipids than light muscle, 7.3 wt% versus 3.0 wt%, which was mostly accounted for by neutral lipids, especially triacylglycerols. LÄS MER

  7. 5. Roles of Arginine-Vasotocin and Corticotropin-Releasing Hormone in Stress Responses and Agonistic Behaviour of Rainbow Trout

    Författare :Tobias Backström; Svante Winberg; Lynne Sneddon; Uppsala universitet; []
    Nyckelord :Zoophysiology; arginine-vasotocin AVT ; corticotropin releasing hormone CRH ; stress; stress coping; behaviour; rainbow trout; Zoofysiologi;

    Sammanfattning : The neuropeptides arginine-vasotocin (AVT) and corticotropin-releasing hormone (CRH) are involved in the hypothalamic-pituitary-interrenal (HPI) axis. During stress, the HPI axis is activated and cortisol is released into the blood. In addition to their role in the HPI axis, AVT and CRH also have behavioural effects. LÄS MER