Blar i Doctoral theses (VetMed) på utgivelsesdato
Viser treff 41-60 av 129
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The microevolution of Renibacterium salmoninarum
(PhD Thesis;2015:50, Doctoral thesis, 2017-07-13)Renibacterium salmoninarum is the causative agent of bacterial kidney disease (BKD), a chronic infection of cultured and wild salmonids, which can result in acute morbidity or mortality or be a slowly progressive disease ... -
Influenza A(H1N1)pdm09 virus infection in swine : virus characterization and NK cell responses to infection
(PhD Thesis;2016:44, Doctoral thesis, 2017-07-14)Influenza viruses balance on the interface between animals and humans, and swine represents a possible intermediate host for human viruses. It is therefore of great importance for animal welfare and to the public health ... -
Introductory studies on bacterial agents infecting cleaner fish
(PhD Thesis;2015:98, Doctoral thesis, 2017-07-14)Cleaner fish (wrasse and lumpsucker) are used extensively in Norwegian salmon farms for biocontrol of sea louse infestation, but cleaner fish health and welfare has only recently become a focus of attention. Bacterial ... -
Effects of the hatchery environment on neurobiology and behaviour in Atlantic salmon : implications for stocking
(PhD Thesis;2018:80, Doctoral thesis, 2018)The Atlantic salmon (Salmo salar) is an iconic fish species with a widespread historic abundance, but recent decades have witnessed a dramatic decline in wild stocks due to a variety of anthropogenic factors, especially ... -
Two-generational study of biological effects from gamma radiation exposure during sensitive life stages in the zebrafish (Danio rerio)
(PhD Thesis;2018:11, Doctoral thesis, 2018)There is growing concern about the harmful effects of ionizing radiation on animal populations, including potential effects on future generations. A number of life stages are particularly sensitive to radiation exposure ... -
Epidemiology of viral haemorrhagic fevers : seroprevalence and risk factor modelling of Ebola and Marburg viruses in Uganda
(PhD Thesis;2018:12, Doctoral thesis, 2018)Ebola and Marburg virus diseases, caused by Ebolavirus and Marburgvirus (filoviruses) respectively, are viral haemorrhagic fevers of public health importance. This is because of associated severity and impact on global ... -
Neuroendocrine regulation of pituitary gonadotropins during puberty in Atlantic salmon parr with focus on melatonin and Gnrh systems
(PhD Thesis;2018:105, Doctoral thesis, 2018)The pituitary gland, gonadotropins, together with neurohormones like gonadotropin-releasing hormone (Gnrh) and melatonin are key players in the control of vertebrate reproduction. In teleosts, despite the numerous studies ... -
Intestinal microbiota, red meat, and colorectal tumours in dogs
(PhD Thesis;2018:42, Doctoral thesis, 2018)Tarmens mikrobiota består av et rikt nettverk av mikrober som har betydning for vertens fysiologi, og således helse og velvære. Mikrobiotaen påvirkes av diettens sammensetning av makronæringsstoffer (karbohydrater, proteiner, ... -
Coccidiosis in lambs : treatment and control
(PhD Thesis;2018:54, Doctoral thesis, 2018)Koksidiose er forårsaket av en gruppe encellede parasitter som kalles Eimeria spp. og er en viktig produksjonsbegrensende sjukdom hos unge dyr blant flere arter, som sau, ku og fjørfe. Disse parasittene gir skader i ... -
Bovine coronavirus in calves : experimental studies on virus shedding, transmission and whole genome sequencing
(PhD Thesis;2018:32, Doctoral thesis, 2018)Bovine coronavirus (BCoV) is a significant cause of respiratory disease and diarrhea in calves and of winter dysentery in adult cattle. These endemic diseases result in substantial economic losses and reduced animal ... -
Non-typhoidal Salmonella in layer hen farms in Uganda : occurrence, biodiversity and antimicrobial resistance
(PhD Thesis;2018:83, Doctoral thesis, 2018)Non-typhoidal Salmonella (NTS) is an important global foodborne pathogen mainly acquired in humans from animal sources through consumption of contaminated animal products, contacts with animals or their environment, ... -
Molecular studies of Piscine orthoreovirus : viral factories, kinetics and vaccination
(PhD Thesis;2017:79, Doctoral thesis, 2018)Piscine orthoreovirus (PRV) is ubiquitous in farmed Atlantic salmon (Salmo salar) and the cause of heart and skeletal muscle inflammation (HSMI). PRV is an orthoreovirus in the family Reoviridae and shows several similarities ... -
Use of zirconium and chitosan coagulants for physicochemical and hygienic water treatment
(PhD Thesis;2018:48, Doctoral thesis, 2018)Use of aluminium and ferric salts for drinking water production is almost global. Beneficial aspects of their use are extensively recognized. However, factors, such as deteriorating water quality, health concerns and ... -
Epidemiological investigations of footrot in the Norwegian sheep population
(PhD Thesis;2015:22, Doctoral thesis, 2018-04-24)Footrot is a contagious disease where Dichelobacter nodosus, a Gram negative bacterium, is the necessary transmitting agent. The disease mainly affects small ruminants. The clinical signs range from mild inflammation in ... -
Healthier Goats disease eradication programme : a healthy initiative
(PhD Thesis;2015:28, Doctoral thesis, 2018-05-03)The Norwegian Goat Health Services (NGHS) initiated the Healthier goats disease eradication programme – Healthier Goats (HG) in 2002. The objectives of HG was to eradicate and control the three contagious diseases caseous ... -
Early environmental effects on laying hen development
(PhD Thesis;2016:57, Doctoral thesis, 2018-05-04)Chickens are widely used by humans in both farm production and in scientific research as model organisms. In the farming industry, they total 27 billion individuals worldwide (FAO, 2013). Over 6 billion of these are laying ... -
Deoxynivalenol in pigs : effects, toxicokinetics, vertical transmission and microbial detoxification
(PhD Thesis;2018:99, Doctoral thesis, 2019)Mycotoxins are secondary metabolites of fungi that can have a variety of adverse effects on animals and humans. One of the most common mycotoxins produced by Fusarium fungi is the trichothecene deoxynivalenol (DON), and ... -
Effects of persistent organic pollutants (POPs) on the steroidogenesis of primary neonatal porcine Leydig cells
(PhD thesis;2019:7, Doctoral thesis, 2019)After World War II the production of manmade chemicals has increased immensely. They are made to give desired practical properties and functions. Some are added to consumer products to provide conductivity, increase flame ... -
Reproductive problems in cattle in Bosnia and Herzegovina
(Doctoral thesis, 2019)The bovine industry represents the most important and the fastest growing branch of agriculture in Bosnia and Herzegovina (BH). Thus, this industry has experienced significant changes over the past twenty years regarding ... -
Nanoparticle based vaccine delivery of recombinant outer membrane proteins and characterization of Aeromonas hydrophila and Edwardsiella species in Asian Aquaculture
(PhD Thesis;2019:50, Doctoral thesis, 2019)Akvakultur startet i Asia og i dag produseres mer enn to tredjedeler av den globale produksjonen i denne regionen. Bærekraftig utvikling av intensiv akvakultur utfordres av sykdom som hovedsakelig skyldes bakterielle ...