Browsing Faculty of Biosciences (BioVit) by Issue Date
Now showing items 1-20 of 1107
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Kvalitetsundersøkelser for en del grønnsaker i detaljomsetningsleddet
(Master thesis, 1973) -
Det sosiale båndet mellom menneske og katt
(Master thesis, 1998)Etterhvert er man blitt mer klar over kjæledyrets rolle som sosial partner, og ikke bare som et slags terapeutisk objekt. I 1994 utførte Zasloff og Kidd en spørreundersøkelse i USA for å øke kunnskapen om forhold mellom ... -
Forskjeller i atferd mellom tre katteraser: arvbarhet av noen atferdsegenskaper, og eierens forhold til sin katt
(Master thesis, 1998)Det ble sendt ut spørreskjemaer til eiere av siameser, perser og vanlig huskatt. Jeg ønsket å finne ut om det var forskjeller i atferdsegenskaper mellom de ulike katterasene. For å kunne beregne arvbarhetsestimater for ... -
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 ... -
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 ... -
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 ... -
Development and evaluation of 4-way crossbred chicken population in Southern Ethiopia
(PhD Thesis;2010:46, Doctoral thesis, 2010)Village chickens in Ethiopia are predominantly indigenous. They play an important role in the livelihood of farmers mainly by providing animal protein through meat and egg, as a source of income and family saving, and means ... -
Genetics of Pooideae freezing tolerance : an evolutionary perspective
(PhD Thesis;2010:37, Doctoral thesis, 2010)Freezing tolerance is an important agricultural trait for forage and cereal grasses belonging to the Pooideae sub-family. Many plants, including the Pooideae grasses, go through a cold acclimation (CA) process when exposed ... -
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. ... -
High quality grass silage to dairy goats : effect on energy balance, milk yield and quality
(PhD Thesis;2010:48, Doctoral thesis, 2010)The general aim of this thesis has been to investigate the effect of high quality silage, harvested at an early stage of maturity, on energy intake, energy balance, milk production and milk quality of goats. It was also ... -
Physical and social environment for sheep : effects on spacing behaviour, social interactions and activity budgets in housed ewes
(PhD Thesis;2010:49, Doctoral thesis, 2010)I innefôringsperioden blir sauen ofte holdt i et stimulusfattig miljø med høy dyretetthet og fullspaltegulv, noe som medfører begrenset tilgang til ressurser, hyppig håndtering og lite plass til å trekke seg unna eller ... -
Genomic architecture and complex traits in norwegian red cattle
(PhD Thesis;2010:50, Doctoral thesis, 2010)The predominant cattle breed in Norway, Norwegian Red cattle (NRF), is an admixed breed formed from local Norwegian breeds and imported animals from other Nordic breeds. The extensive phenotypic records for NRF represent ... -
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 ... -
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 ... -
Morphological and molecular characterization of developing vertebral fusion in altantic salmon (Salmo salar)
(PhD Thesis;2010:26, Doctoral thesis, 2010)Problems with spinal disorders in Atlantic salmon (Salmo salar) have been increasingly in focus due to the importance of this species in the aquaculture industry. Until recently, the molecular development of spinal deformities ... -
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 ... -
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, ...