Faculty of Biosciences (BioVit): Recent submissions
Now showing items 401-420 of 1102
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Exploring current practices and the potentials of Nanopore sequencing in metagenomics
(Master thesis, 2020)For billions of years, microorganisms were the sole inhabitants of planet Earth. As major drivers behind many essential geochemical cycles such as the carbon cycle, microbial communities are integral to the continued support ... -
Participatory Guarantee System for urban agriculture
(Master thesis, 2020)Following the rapid growth of urban agriculture (UA), research has stressed the need for a methodology to evaluate and valorise sustainability of UA projects. In parallel, the worldwide development of Participatory Guarantee ... -
Effekt av grasensilering med forskjellige syrer, kjemiske stabilisatorer, lactobacillus spp. og eksogene fibrolytiske enzymer på aerob stabilitet, kjemisk sammensetning og in vitro vomnedbrytning
(Master thesis, 2020)Konservering av grovfôr er en nødvendighet i Norge for å kunne sikre dyra tilgang på mat gjennom vinterhalvåret. God kvalitet på det konserverte fôret er viktig for å kunne opprettholde en god produksjon og produktkvalitet ... -
Fillet quality of Atlantic salmon (Salmo salar) as affected by dietary and environmental treatments
(Master thesis, 2020)Fillet quality of Atlantic salmon (Salmo salar L) is crucial for both salmon producers and consumers. There are endogenous and exogenous factors that affect fillet quality. This thesis mainly focuses on exogenous factors: ... -
Sensitivity of plants exposed to gamma radiation : a physiological and molecular study
(PhD Thesis;2019:100, Doctoral thesis, 2019)Sessile organisms such as plants need to cope with a range of changing environmental conditions and stressors, including ionizing radiation like gamma, beta or alpha radiation and non-ionizing radiation (UV-A and UV-B ... -
Sweet potato virus in Ethiopia : detection, characterization, elimination and management
(PhD Thesis;2019:94, Doctoral thesis, 2019)The initiative to improve sweet potato production and productivity in Ethiopia began in the 1980s and so far, there are 26 improved sweet potato varieties made available for farmers. Lack of a rigorous quarantine scheme ... -
Sweet potato production in South Sudan : current status, virus infections and whitefly vector diversity
(PhD Thesis;2019:98, Doctoral thesis, 2019)Sweet potato (Ipomoea batatas (L.) Lam.) is an important staple food crop that assures food security in sub-Saharan Africa, especially East Africa. In South Sudan, sweet potato is a main staple food crop for many farming ... -
Multivariate analyses of milk infrared spectra and predictions from it in dairy cattle populations
(PhD Thesis;2017:65, Doctoral thesis, 2017)Fourier-transform mid-infrared (FT-MIR) spectra of milk is one of the multivariate information routinely recorded by many milk-recording organizations in the world. Use of such information is becoming central to research ... -
Interactions between the cereal aphid pests Sitobion avenae and Rhopalosiphum padi and their fungal natural enemies
(PhD Thesis;2019:70, Doctoral thesis, 2019)In agronomy, efficient plant protection strategies are required to reduce pest pressure and increase crop yield. Pesticide application has been the dominant method for plant protection for almost a century. However, the ... -
Detection and validation of disease resistance QTL in wheat
(PhD Thesis;2018:02, Doctoral thesis, 2018)Powdery mildew (PM), Fusarium head blight (FHB) and Septoria leaf blotch (SNB) are devastating wheat diseases. Breeding of disease resistant varieties is an economical and environmentally friendly approach and is given ... -
Effect of cobalt on fatty acid composition in milk of dairy cows and sows
(PhD Thesis;2011:75, Doctoral thesis, 2011)Previous research revealed that supplementing excess cobalt (Co) reduces bovine milk content of monounsaturated fatty acids (MUFAs), probably mediated by the enzyme Δ9 -desaturase. The general aim of this research project ... -
Protein quality evaluation of animal protein ingredients applied in extruded dry dog food using mink (Neovison vison) as a model species
(PhD Thesis;2016:78, Doctoral thesis, 2020-11-24)Determination of protein and amino acid (AA) digestibility is essential for protein quality evaluation of dog foods, and should preferably be measured as standardized ileal digestibility (SID). Assessment of protein ... -
Resistance to Septoria nodorum leaf blotch and the importance of sensitivity to necrotrophic effectors in Norwegian spring wheat
(PhD Thesis;2017:63, Doctoral thesis, 2017)Wheat is one of the most important food crops worldwide. In normal years, the proportion of food quality wheat grown in Norway exceeds 50 %. However, the quality and yield can be significantly challenged by unfavorable ... -
Density dependent foraging ecology and performance of domestic sheep on alpine ranges
(PhD Thesis;2012:2, Doctoral thesis, 2012)Populations of large herbivores are strongly influenced by density dependent and independent processes such as climatic variability, which have common effects on individual performance and demographic rates. However, little ... -
The neural basis of threat-sensitive behaviour in fish
(PhD Thesis;2015:6, Doctoral thesis, 2020-11-10)Fear, or threat-sensitive behaviour, is an emotionally guided response allowing animals to minimize exposure to potential danger. Stress is a set of physiological/behavioural responses to such exposure. Among other ... -
Growth media comparison for tomatoes in greenhouses
(Master thesis, 2020)As part of the SiEUGreen project, development of urban farming has become of increasing importance as urban population and urbanization grow worldwide. Moreover, dealing with urban waste, and recycling of resources are ... -
The Effect of UV Radiation on Myzus persicae and the Biological Control Agent Aphidius colemani
(Master thesis, 2020)Greenhouse light technologies are advancing, giving new opportunities in pest management such as UV treatments against pathogenic fungi. Little is known about how these methods affect other relevant organisms in protected ... -
Effect of temperature-photoperiod interaction on growth and winter bud development in Norway spruce (Picea Abies)
(Master thesis, 2020)Woody species growing in temperate and boreal regions, like Norway spruce (Picea abies) have to enter dormancy to survive winter and freezing temperatures, while simultaneously maximizing their growing period. Dormancy is ... -
Remodelling of H3K4me3 histone tail modifications across life stages in Atlantic salmon
(Master thesis, 2020)Atlantic salmon undergo a series of preparatory adaptation for a life in the sea, referred to as smoltification. Recent studies have focused on the genetic base of this process and revealed genome-wide transcriptional ... -
Sein bekjemping for å hindre produksjon av spiredyktige frø av hønsehirse (Echinochloa crus-galli (L.) P. Beauv.)
(Master thesis, 2020)Hønsehirse (Echinochloa crus-galli) som ofte blir ofte omtalt som verdens tredje verste ugras, sprer seg i områdene rundt Oslofjorden. Hønsehirse blir sett på som et økende problem i norsk landbruk. Artens suksess som ugras ...