Blar i tittel Norges fiskerihøgskole
Viser treff 329-348 av 1576
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Det norske sykdomsregimet og bekjempelsen av infeksiøs lakseanemi
(Master thesis; Mastergradsoppgave, 2023-05-15)Sykdomsbekjempelse i akvakultur er en kontinuerlig og kompleks utfordring med både miljømessige, velferdsmessige og økonomiske konsekvenser. Virussykdommen infeksiøs lakseanemi (ILA) er en av sykdommene som norske myndigheter, veterinærer og oppdrettere har bekjempet lengst og brukt mest innsats på å kontrollere. Når dyrehelseforordningen tredde inn i norsk rett den 28. april i 2021, kom det nye ... -
Detection of specific Atlantic salmon antibodies against salmonid alphavirus using a bead-based immunoassay
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-30)Salmonid alphavirus (SAV) is the etiological cause of pancreas disease (PD) in Atlantic salmon (<i>Salmo salar</i>). Several vaccines against SAV are in use, but PD still cause significant mortality and concern in European aquaculture, raising the need for optimal tools to monitor SAV immunity. To monitor and control the distribution of PD in Norway, all salmonid farms are regularly screened for SAV ... -
Determinants of trip duration for international tourists in Norway; a parametric survival analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-10)How long a tourist stays in a host country acts as an indicator of tourism industry’s contribution towards the national economy. The purpose of this study is to examine how socio-demographic characteristics of international tourists, their travelling purpose, tourism products and characteristics of the destination influence the length of stay in Norway, by estimating a parametric survival model. ... -
Determination of peracetic acid exposure concentration without effect on Atlantic salmon parr health, welfare or growth cultured in RAS.
(Master thesis; Mastergradsoppgave, 2021-11-14)Recirculating aquaculture systems (RAS) are replacing land-based flow through systems in Norway and other producing countries. RAS has many advances but also bring some biological challenges as water disinfection that may compromise biofilters performance and fish health and welfare. For example, Denmark is using peracetic acid (PAA) as a water disinfection strategy to control pathogens for rainbow ... -
Determination of pH in pre rigor fish muscle - method matters
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-06)The determination of post mortem muscle pH are often carried out in studies on how pre-slaughter handling influences the development of rigor mortis and the quality of the fish products. The analysis might be performed by inserting a pH-electrode into the intact flesh or using a suspension containing a minced muscle sample. Although it has been known for a long time that mincing muscle tissue ... -
Development of artisanal fishery in Rama Cay community, Atlantic coast of Nicaragua
(Master thesis; Mastergradsoppgave, 2002-05-31)Development is a term that evokes powerful images. It speaks to the collective aspiration of the people for a life of meaning and dignity. It inspire the hope to achieve what develop countries have achieved and what the poor may one day obtain. This thesis is the first study of Rama indigenous people focussing and its fishing activity in the community of Rama Cay. It examines the fundamental of ... -
Development of Commercial Aquaculture and the Role of Policies. A case study on the development of aquaculture as a tool for poverty reduction and food security in Kenya
(Master thesis; Mastergradsoppgave, 2015-08-17)In Kenya, there is a growing demand for fish food, due to rapid population growth and dwindling fisheries. Aquaculture has been revived, and is now the fastest growing food-producing sector in the country. However, this development has happened in an unprecedented speed whereas the issue with sustainability emerges. The main driver for this growth is by government intervention, heavily involved in ... -
Diagnostikk av parasittsykdommer
(Journal article; Tidsskriftartikkel, 2022)Parasitter er alle snyltere, men de tilhører svært ulike grupper og har et mangfoldig levesett! -
Dietary enrichment of apolipoprotein E-deficient mice with extra virgin olive oil in combination with seal oil inhibits atherogenesis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011) -
Dietary inclusion of Orange peels derived pectin and Lactobacillus plantarum for Nile tilapia (Oreochromis niloticus) cultured under indoor biofloc systems
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-04)A 12-week feeding trial was carried out to investigate possible effects of dietary orange peels derived pectin (OPDP) and <i>Lactobacillus plantarum</i> CR1T5 (LP) singularly or combined on innate immune response, disease resistance, and growth performance of Nile tilapia fingerlings under indoor biofloc system. The fingerlings were fed the following diets: diet 1 (0 g kg<sup>−1</sup> OPDP and ... -
Dietary intake of cod and scallop reduces atherosclerotic burden in female apolipoprotein E-deficient mice fed a Western-type high fat diet for 13 weeks
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-02-02)<b>Background:</b> It is now increasingly recognized that the beneficial effects of seafood consumption is not limited to lipids and fatty acid, but that the protein part, i.e., peptides and amino acids, together with vitamins and even unknown bioactive constituents also are important for disease prevention. This study was designed to evaluate the putative anti-atherogenic effects of different ... -
Dietary Succinate Impacts the Nutritional Metabolism, Protein Succinylation and Gut Microbiota of Zebrafish
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-23)uccinate is widely used in the food and feed industry as an acidulant, flavoring additive, and antimicrobial agent. This study investigated the effects of dietary succinate on growth, energy budget, nutritional metabolism, protein succinylation, and gut microbiota composition of zebrafish. Zebrafish were fed a control-check (0% succinate) or four succinate-supplemented diets (0.05, 0.10, 0.15, and ... -
Dietary supplementation of exopolysaccharides from Lactobacillus rhamnosus GCC-3 improved the resistance of zebrafish against spring viremia of carp virus infection
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-05)Spring viremia of carp virus (SVCV) can cause high mortality of fish. The aim of this study was to investigate the effects of Lactobacillus rhamnosus GCC-3 exopolysaccharides (GCC-3 EPS) on zebrafish (Danio rerio) infected with SVCV and elucidate the underlying mechanisms. Zebrafish were fed with a control diet or diet supplemented with 0.5% and 1% of GCC-3 EPS for 2 weeks. The results showed ... -
Diett hos Atlantisk laks Salmo salar langs kysten av Finnmark
(Master thesis; Mastergradsoppgave, 2012-02-24)Atlantisk laks er en anadrom fisk som vokser fra ca 15-50 g til over 25 kg i løpet av den marine fasen, som generelt strekker seg fra 1 til 3 år. Gytevandringen skjer fra de åpne havområdene inn til kysten og tilbake til oppvekstelven. Laksen er en karnivor opportunist som spiser pelagiske byttedyr. Sild, lodde, sil og krepsdyr er ansett som de byttedyrene laksen hovedsakelig spiser når den vandrer ... -
Diett og posisjoner i næringsnettet til torskefisk i Ullsfjord
(Master thesis; Mastergradsoppgave, 2011-06-03)Dette studiet undersøker diett og posisjoner i næringsnettet til de seks torskefiskene, torsk (Gadus morhua), hyse (Melanogrammus aeglefinus), hvitting (Merlangius merlangus), kolmule (Micromesistius poutassou), øyepål (Trisopterus esmarkii) og sølvtorsk (Gadiculus argenteus thori) i Ullsfjord. Innsamling av prøver ble gjort med bunntrål ved de fem lokalitetene, Arnøy, Eidstranddjupet, Lattervik, ... -
Differences in smolt status affect the resistance of Atlantic salmon (Salmo salar L.) against infectious pancreatic necrosis, while vaccine-mediated protection is unaffected
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-18)In today's aquaculture of Atlantic salmon (<i>Salmo salar</i> L.), a majority of viral disease outbreaks occur after seawater transfer. A relevant question is how the parr–smolt transformation influences the efficacy of viral vaccines and the innate resistance against viral diseases. In this study, vaccinated and unvaccinated A. salmon parr were exposed to different photoperiodic regimens (1‐, 3‐ ... -
Differensiering i pelagisk industri : identifisering av differensieringsstrategier
(Master thesis; Mastergradsoppgave, 2013-05-15)Sammendrag Norsk pelagisk industri kjennetegnes ved relativt lav lønnsomhet, store sesongvariasjoner og produksjon av store volum på kort tid. Dette innebærer at aktørene i pelagisk industri har hatt fokus på å produsere store volum hvor formålet har vært å skape verdiene gjennom effektivitet, lave produksjonskostnader og store mengder produsert råstoff. Oppgaven har derfor valgt å undersøke hvordan ... -
Differensieringsstrategier innen irsk lakseoppdrett
(Master thesis; Mastergradsoppgave, 2008-05-15)Laks blir i all hovedsak solgt som en standardvare og derfor foregår det prinsipielt priskonkurranse på spottmarkedet. Noen oppdrettsnajonser oppnår allikevel gjennomsnittlig mye høyere pris enn andre. Blant disse finner vi Irland som produksjonsmessig er en liten aktør i markedet. Denne studien undersøker hvordan Irland oppnår bedre priser enn konkurrentene i laksemarkedet. Basert på en dyptgående ... -
Different types of intuition at the workplace: an integrative review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-16)To make good decisions, employees must manage their own intuitions and be able to anticipate decision-making in their work environment. How well this is accomplished has significant consequences for the workplace. A closer examination indicates that individuals utilize various types of intuition. People’s work context is frequently omitted from studies on the use of intuition, resulting in a ... -
Direct and social genetic parameters for growth and fin damage traits in Atlantic cod (Gadus morhua)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014)