Browsing Doctoral theses (VetMed) by Issue Date
Now showing items 1-20 of 86
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Cartilage canals in the pathogenesis of osteochondrosis in horses
(PhD Thesis;2008, Doctoral thesis, 2008)Osteochondrosis (OC) is a common disease that arises in the developing joints of people, horses, pigs, dogs and other species. OC is defined as a disturbance in enchondral ossification, and in horses, the disturbance is ... -
Effects of gonadotropin-releasing hormone agonist on brain development and aging : results from two animal models
(PhD Thesis;2014:32, Doctoral thesis, 2014)Normal brain maturation is the result of many structural and molecular changes that can be modulated by endocrine variables and is associated with brain plasticity and sex- and age specific differences in cognitive ... -
Studies of boar taint, with an emphasis on testicular function and development
(PhD Thesis;2015:43, Doctoral thesis, 2015)Boar taint is an odour reminiscent of sweat, urine or faeces, perceived as off-flavour when meat from entire male swine is heated. The compunds that cause boar taint are androstenone and skatole/indole. Androstenone is ... -
The interplay between IPNV and host cell machinery : possible strategies for immune evasion
(PhD Thesis;2016:46, Doctoral thesis, 2016)The aquatic birnaviruses cause diseases in different aquatic species worldwide. Infectious pancreatic necrosis (IPN), caused by IPN virus (IPNV) in salmonids, has arguably been the most economically important disease caused ... -
Chemotherapeutants against salmon lice Lepeophtheirus salmonis : screening of efficacy
(PhD Thesis;2016:80, Doctoral thesis, 2016)Sea lice constitute a continuous challenge for fish farmers in all salmonid production areas. The salmon louse, Lepeophtheirus salmonis, is the most abundant of these in the Northern hemisphere. Through millions of years ... -
Immunological response profiles to salmon lice infections in Atlantic salmon : modulation by nutrition and selective breeding
(Doctoral thesis, 2016)Infections with the salmon louse Lepeophtheirus salmonis (L. salmonis) represent one of the most important limitations to sustainable Atlantic salmon (Salmo salar) farming today. The parasite exerts negative impacts on ... -
The novel A/J Min/+ mouse as a model for colorectal cancer, and the effects of hemin on intestinal tumorigenesis
(PhD Thesis;2016:41, Doctoral thesis, 2016)Colorectal cancer (CRC) is one of the most common cancers worldwide. Most cases of CRC appear to be caused by somatic mutations, but a small number of cases are the result of germline mutations in the tumor-suppressor gene ... -
Nutrition and intestinal health in Atlantic salmon (Salmo salar) : involvement of antinutrients and microbiota
(PhD Thesis;2016:88, Doctoral thesis, 2016)The use of alternative protein ingredients to replace fishmeal in diets for Atlantic salmon (Salmo salar) can have negative consequences for the fish intestinal health. The most severe intestinal physiological and morphological ... -
Factors affecting calf production in Norwegian suckler herds
(PhD Thesis;2016:68, Doctoral thesis, 2016)The overall aim of this project was to determine factors affecting productivity in Norwegian suckler herds by concentrating on four objectives: 1) to evaluate the usefulness of an automatic activity monitoring system (AAMS) ... -
Epidemiological studies of influenza A(H1N1)pdm09 virus infections in the Norwegian pig population
(PhD Thesis;2016:99, Doctoral thesis, 2016) -
Characterization of NK cells in the dog with a focus on the activating receptor NCR1
(PhD Thesis;2016:39, Doctoral thesis, 2016)NK (natural killer) cells are part of the innate immune system and are important for protection against infectious diseases and destruction of potential malignant cells that can develop into cancer. NK cells represent a ... -
The impact of management on dairy calf welfare
(PhD Thesis;2015:106, Doctoral thesis, 2016-05-19)No universal definition of animal welfare exists. However, an animal allowed expression of natural, innate behaviours, showing good biological functioning and having a positive affective state is generally viewed as having ... -
Cephalosporin-resistant escherichia coli in the Norwegian broiler production pyramid : genetic characterization and determination of risk factors
(PhD Thesis;2016:63, Doctoral thesis, 2016-11-24)Antimicrobial resistance is defined as one of our times’ main public health challenges. The prevalence of Escherichia coli displaying resistance against extended-spectrum cephalosporins, a class of antimicrobials that are ... -
Effects of meat and meat components on intestinal carcinogenesis in the A/J Min/+ mouse model
(PhD Thesis;2017:06, Doctoral thesis, 2017)Colorectal cancer (CRC) represents a major public health burden worldwide, and particularly in the developed countries. Sporadic CRC has been associated with a number of lifestyle factors, including smoking, alcohol ... -
Non-neuronal functions of the prion protein : insights from a unique animal model
(PhD Thesis;2017:68, Doctoral thesis, 2017)The physiological function of the cellular prion protein (PrPC) remains enigmatic. A misfolded, infectious conformer of the protein, known as the scrapie isoform PrPSc, is able to aggregate in brain tissue and cause a group ... -
Waterborne transmission of Toxoplasma gondii : novel approaches to development of analytical techniques
(PhD Thesis;2017:75, Doctoral thesis, 2017)Access to safe drinking water is essential for healthy life. Drinking water contaminated with waterborne pathogens is one of the most significant environmental contributors to human disease burden. Protozoan parasites that ... -
Functional characterization of the germination receptors in the spore-forming species Bacillus licheniformis
(PhD Thesis;2017:80, Doctoral thesis, 2017)The food industry experience extensive losses worldwide due to food spoilage caused by microbial activity. Endospore-forming bacteria, such as members of the genera Bacillus and Clostridium, are becoming increasingly ... -
Intestinal protozoa in wildlife : parasite transmission at the wildlife-human-domestic animal interface
(PhD Thesis;2017:56, Doctoral thesis, 2017)The interfaces between humans, wild animals, and domestic animals are changing. This process is driven by a multitude of factors, including changes in land use, habitat loss and fragmentation, climate change, ecotourism, ... -
Immunological and physiological effects of Piscine orthoreovirus infection in Atlantic salmon (Salmo salar)
(PhD Thesis;2017:33, Doctoral thesis, 2017)Heart and skeletal muscle inflammation (HSMI) is an important viral disease in Norwegian farmed Atlantic salmon (Salmo salar), and was associated with Piscine orthoreovirus (PRV) in 2010. Recently, the causality between ... -
Microbe-associated molecular patterns of Aliivibrio salmonicida : roles in the pathogenesis of cold-water vibriosis
(PhD Thesis;2017:62, Doctoral thesis, 2017)Aliivibrio salmonicida is the cause of cold-water vibriosis, a hemorrhagic septicemia of farmed salmonids. Previous reports have shown that Al. salmonicida is able to circumvent defense systems of the fish host, and it ...