Faculty of Biosciences (BioVit): Recent submissions
Now showing items 721-740 of 1102
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Therapeutic horticulture for clinical depression in a Green Care context : prospective studies on mental health benefits, active components and existential issues
(PhD Thesis;2010:28, Doctoral thesis, 2010)Historically, asylums were surrounded by gardens, parks and open landscapes, and patients often participated in horticultural activities. Horticultural therapy and therapeutic horticulture are today widely known therapeutic ... -
Nutritional and anti-nutritional quality of range vegetation in southern Ethiopia and supplementary values of selected browse leaves to goats
(PhD Thesis;2010:51, Doctoral thesis, 2010)Livestock are reared in all agroecological zones of Ethiopia under various production systems. Goats, although found in all agroecological zones, are popular in the drier environments since they adapt well in harsh condition ... -
Strategies for improving productivity of small ruminants in Tanzania
(PhD Thesis;2010:52, Doctoral thesis, 2010)This thesis presents three areas of emphasis, all related to feeds, feeding and performance of small ruminants. The first area (Paper I) focuses on seasonality and its effect on chemical composition of forage species most ... -
Genetic studies on improvement of striped catfish (Pangasianodon hypophthalmus) for economically important traits
(PhD Thesis;2010:43, Doctoral thesis, 2010)The aim of this study was to find non-invasive methods for measuring fillet weight, fillet yield and fillet fat on striped catfish (Pangasianodon hypophthalmus), to examine the magnitudes of genetic variance and covariance ... -
Studies on the Collectrichum sublineolum (P. Henn)-Sorghum bicolor (L. Moench) pahosystems in Ethiopia
(PhD Thesis;2010:19, Doctoral thesis, 2010)This thesis covers the assessment of anthracnose incidence and severity in Ethiopia, characterisation of Colletotrichum sublineolum isolates from different sorghum regions of Ethiopia, studying the impact of four selected ... -
Genomic responses of salmonids to pathogenic agents and nutritional interventions
(PhD Thesis;2009:43, Doctoral thesis, 2009)Aquaculture exposes salmonid fish to diverse stressors, including pathogens and inadequate nutrition. The identification of molecular basis underlying compromised health and growth caused by these factors is confounded by ... -
Tetradecylthioacetic acid (TTA) – A functional feed ingredient for Atlantic salmon (Salmo salar L.): Growth, sexual maturation and health
(PhD Thesis;2010:23, Doctoral thesis, 2010)Farmed Atlantic salmon (Salmo salar L.) is transferred to sea at different times during the year. Independently of time after sea transfer, the salmon experience a period of low performance, characterized by reduced appetite, ... -
Development and functions of adipose tissue in Atlantic salmon
(PhD Thesis;2009:42, Doctoral thesis, 2009)The trend in salmon aquaculture is to use feed with high lipid content. In current feeds, energy from lipids can comprise as much as 50% of the total energy, compared to 10% approximately 20 years ago. This change was ... -
Vernalization and photoperiodic regulation of flowering time and population genetic stucture of Norwegian populations of Arabidopsis thaliana
(PhD Thesis;2009:44, Doctoral thesis, 2009)Natural environmental conditions vary across seasons and therefore timing of flowering is a major determinant of plant reproductive success and a trait with a potentially high adaptive value. Plants have developed mechanisms ... -
Genetic studies of Nile tilipia (Oreochromis niloticus) for farming in northern Vietnam : growth, survival and cold tolerance in different farm environments
(PhD Thesis;2010:04, Doctoral thesis, 2010)The present work explores genetic parameters for growth, survival and cold tolerance of tilapia in different farm environments in northern Vietnam. The results are important for further development of selective breeding ... -
Use of supplemental lighting towards efficient management of powdery mildew in greenhouse roses
(PhD Thesis;2009:22, Doctoral thesis, 2010)Powdery mildew caused by the Podosphaera pannosa is one of the most widespread and destructive diseases in roses and has been an increasing problem in Norwegian rose production due to lack of disease resistant cultivars. ... -
Molecular studies of Atlantic cod (Gadus morhua) globin genes – functional effects of hemoglobin polymorphisms and their geographical distribution
(PhD Thesis;2011:56, Doctoral thesis, 2011)The phenotypic variation among Atlantic cod hemoglobins and their physiological properties has been of great interest to researchers for several decades, and many cod stocks have been “genotyped” according to the HbI ... -
A quantitative genetic study on the proportion of males in tilapia
(PhD Thesis;2011:63, Doctoral thesis, 2011)Early sexual maturation is one the main constraints in Tilapia farming since early breeding causes stunted growth and large size variability. To circumvent this problem all-male populations are used commercially, and ... -
Partial resistance to Fusarium head blight and powdery mildew in wheat
(PhD Thesis;2011:66, Doctoral thesis, 2011)Both Fusarium head blight and powdery mildew are devastating diseases in wheat growing areas around the world. Breeding for resistance has been undergoing for many decades and mostly depends on phenotypic selection. Marker ... -
Generating systems resilience: Factors sustaining vermont food system
(Master thesis, 2017-01-30)This case study explores key elements that must act for sustaining LFS in communities, using a case study from Vermont. Rooted in community-based and direct-marketing sales, the LFS in Vermont was a result of new market ... -
Wheat landraces : action-oriented data for Pays de la Loire organic farmers
(Master thesis, 2017-01-27)Cultivated biodiversity dramatically decreased along XXth century, what is especially true for tender wheat. In France farming systems, this disappearing is today manifested by inadequacy between certified varieties available ... -
Production of poinsettia (Euphorbia Pulcherrima) with light emitting diodes compared with the traditional high pressure sodium lamp
(Master thesis, 2017-01-02)Use of chemical are commonly used as tools for the commercial pot plant producers to grow strong, dwarfed, and compact plants. Although, these growth regulators have adverse effects on human health and the environment. So, ... -
Goat farming systems : a diagnosis of goat sector at the scale of farms in Centre-Val de Loire Region, France
(Master thesis, 2017-01-02)The goat sector in Centre-Val de Loire Region, France is highlighted by its five PDOs, its important volume of milk produced (63 million of litres in 2014) and its high rate of on-farm cheese processing (40% of the volume). ... -
Soil particulate organic matter contribution of hairy vetch ecotypes as winter annual legume cover crops
(Master thesis, 2017-01-02)Efficient cover crop management provides numerous benefits to the agroecosystems including soil organic matter (SOM) contribution. In the cold climates of the upper Midwest, options of cover crop species that can withstand ... -
Cytisus scoparius : a genetic and historical analysis of introduction history in Norway
(Master thesis, 2017-01-02)Cytisus scoparius is an invasive species threatening the local flora where the shrub is introduced. Studies show that the shrub spreads rapidly and has damaging effects in areas where the plant is considered invasive. ...