Browsing Faculty of Biosciences (BioVit) by Document Types "Doctoral thesis"
Now showing items 61-80 of 157
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Genomic structural variations as drivers of adaptation in salmonid fishes
(PhD Thesis;2023:26, Doctoral thesis, 2023)Structural variations (SVs), e.g. deletions, insertions, inversions and duplications of sequences, are a major source of genomic variation affecting more base pairs in the genome than single nucleotide polymorphisms (SNPs). ... -
Genomics exploring population structure and sex determination in Atlantic cod (Gadus morhua)
(PhD Thesis;2019:102, Doctoral thesis, 2019)Atlantic cod (Gadus morhua) is a benthopelagic cold-water marine species found across the North Atlantic Ocean. Thanks to its historical and current significance as an important food resource it is one of the most well-known ... -
Genomics of bovine milk fat composition
(PhD Thesis;2018:19, Doctoral thesis, 2018)Bovine milk is a highly regarded food source. Still, some milk fatty acids may have unfavourable health effects and can influence manufacturing properties of dairy products. Individual milk fatty acids show moderate ... -
Grain yield in Norwegian spring wheat : past, present, and future : historical genetic gains, their genetic basis, and prospects of future improvement using phenomics
(PhD thesis;2023:52, Doctoral thesis, 2023)Bread wheat is among the most critical staples worldwide and is essential to Norway’s food production. The aftermath of the green revolution nearly eradicated Norwegian wheat production in the 1950s and 1960s. The lack of ... -
Growth, feed utilization, health and biometric parameters in Atlantic salmon (Salmo salar L.) - Influence of dietary protein-to-lipid ratio and body fat status
(PhD Thesis;2018:103, Doctoral thesis, 2018)Today, commercial diets for large farmed Atlantic salmon (Salmo salar L.) commonly contain 30-35 % protein and 35-39 % lipids, i.e. a ratio of protein-to-lipids below 1. Such energy dense diets have generally been shown ... -
Growth, hydraulic and transcriptomic responses to high air humidity and the involvement of abscisic acid (ABA)
(PhD Thesis;2021:65, Doctoral thesis, 2021)The aerial environment, which includes relative air humidity (RH), temperature, vapour pressure deficit (VPD) and CO2 availability, affects plant growth and development in many ways. The aerial environment determines ... -
Growth, stomatal responses and postharvest characteristics of Rosa x hybrida : the influence of air humidity and light quality
(PhD Thesis;2013:77, Doctoral thesis, 2013)Greenhouse production systems are important in the production of vegetables, herbs and ornamentals. Roses are among the most valuable crops in the greenhouse floriculture industry and are produced as pot plants or as a cut ... -
Health-related compounds in broccoli (Brassica oleracea L. var. italica) as affected by postharvest temperature, light and UV-B irradiation
(PhD Thesis;2016:05, Doctoral thesis, 2017-07-06)Broccoli (Brassica oleracea L. var. italica) belongs to Brassica vegetables, consumption of which has been shown to reduce the risk of several types of cancer and cardiovascular disease mortality in epidemiological studies. ... -
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 ... -
Hydrolysis of Atlantic salmon (Salmo salar) rest raw materials : influence of process conditions and evaluation of hydrolysate in diets for broiler chickens and piglets
(PhD Thesis;2015:85, Doctoral thesis, 2018-04-25)Annually Norway produces 1.3 million tons of Atlantic salmon and the levels of production are still rising. After withdrawal of eviscerated fish and filet, 336 000 tons of rest raw material are available for further ... -
Identification of effectors of the plant pathogenic oomycete Phytophthora cactorum and characterisation of a candidate resistance gene from its host strawberry
(PhD Thesis;2023:68, Doctoral thesis, 2023) -
Identification of photoreceptors with functional characterization of photolyase in Pseudoidium neolycopersici
(PhD Thesis;2021:72, Doctoral thesis, 2021)Powdery mildew caused by Pseudoidium neolycopersici is one of the most destructive diseases, occurring predominantly on greenhouse grown tomatoes, and has gained importance worldwide due to severe economic losses in terms ... -
Identification of sperm parameters and gene variants influencing boar fertility
(PhD Thesis;2018:37, Doctoral thesis, 2018)Boar fertility has a major impact on overall pig reproductive efficiency, and good semen quality is essential for successful fertilization and proper embryo development. Thus finding semen characteristics that can predict ... -
Impact of UV radiation on plant growth and development in different climatic regimes
(PhD Thesis;2015:19, Doctoral thesis, 2017-07-06)Ultraviolet (UV) radiation has various effects on the growth, morphology, and biochemical composition of plants. Currently, there is an increasing interest in the manipulation of UV radiation in glasshouses, polythene ... -
Improved nutritional value of fish feed with plant protein ingredients by means of organic acid salts and solid state fermentation
(PhD Thesis;2011:23, Doctoral thesis, 2011)The objective of this work was to improve the nutritional value of plant protein sources to be used in fish feed by means of organic acid salts and solid state fermentation (SSF). Four studies were conducted to determine ... -
Improved starch and protein utilization by extruded feed pellets targeted to benefit dynamics of rumen digestion in dairy cows
(PhD Thesis;2021:15, Doctoral thesis, 2021)To meet their requirements for energy and amino acids, high-producing dairy cows are fed compound feeds containing high amounts of starch and protein. Optimal utilization of these high-quality feeds is critical, where the ... -
Improving the accuracy of genomic predictions in numerically small populations
(PhD Thesis;2016:20, Doctoral thesis, 2017-12-06)Genomic selection (GS) is increasingly being implemented in livestock, especially in the dairy cattle sector. While dairy cattle populations such as Holsteins have benefitted greatly from GS in the accuracy of evaluation ... -
Improving the seed yield potential of tetraploid red clover (Trifolium pratense L.)
(PhD Thesis;2016:79, Doctoral thesis, 2016)Tetraploid red clover has similar forage properties as diploid red clover. However, tetraploid red clover plants are taller, have thicker stems, larger leaves and flower heads, and bigger seeds resulting in higher forage ... -
Improving the utilisation of phytate-bound phosphorus in feed for poultry and pigs through increased efficacy of exogenous phytase in the anterior digestive tract
(PhD Thesis;2020:76, Doctoral thesis, 2020)The majority of phosphorus (P) in feedstuffs is present as phytate-P. Phytate is the storage form of P in seeds and grains and consists of an inositol ring with six phosphate groups bound to it. The phytate-P is only ... -
Inbreeding determined by the amount of homozygous regions in the genome
(PhD Thesis;2015:41, Doctoral thesis, 2017-11-30)The main aim of this PhD was to study long homozygote segments present in the genome in Norwegian Red, and find genomic options to measure inbreeding more accurately than from a pedigree database. Prior to the study, runs ...