Blar i Faculty of Biosciences (BioVit) på tittel
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Genetic analyses of new milkability, temperament, and udder health traits for Norwegian Red cows based on data from automatic milking systems
(PhD Thesis;2020:24, Doctoral thesis, 2020)The overall aim was to investigate several novel phenotypes recorded routinely for individual cows milked in automatic milking systems (AMS). Data were gathered from 77 Norwegian dairy farms, with additional data from ... -
Genetic analyses of semen characteristics in Norwegian Red
(PhD Thesis;2021:62, Doctoral thesis, 2021)The research on the genetics of bull fertility is limited, many studies are old, estimates are often based on few observations or few bulls, and with large or lacking standard errors. With more than 20 years of data on ... -
Genetic analysis of age at conception as a fertility proxy in ewe lambs of Norwegian White Sheep: heritability and genetic correlation with body growth and leanness
(Master thesis, 2023)The aim of this study was to estimate the genetic variation and heritability of ewe’s age at first lambing (a fertility proxy) in ewe lambs of Norwegian White Sheep and to estimate the genetic correlations between number ... -
Genetic analysis of lifespan in Irish wolfhounds
(Master thesis, 2021)Irish Wolfhounds are an ancient and large dog breed. Their lifespan is an average of 7 years only, which is associated with their size. The genetics behind the short lifespan and the combination with different known diseases ... -
Genetic analysis of sheepdog trials in Norway - a proposal of new trait definitions and improved recording in Border Collie
(Master thesis, 2015-01-27)Abstract The aim of this study was to evaluate the quality of the data material provided from sheepdog trials in Norway, estimate heritabilities and repeatabilities for the traits included in the trial, as well as ... -
Genetic and molecular basis of calcium influence on the production of carotenoids in Mucor circinelloides
(Master thesis, 2023)Karotenoider er høyt verdsatte metabolitter, på grunn av deres mangfoldige, kommersielle bruksområder i mat, fôr og kosmetisk industri. Spesielt karotenoider produsert av sopp er av bioteknologisk interesse på grunn av ... -
Genetic Basis for Inherited Eye Diseases in Dogs : A Case Study of Pigmentary Chorioretinopathy in Chinese Crested Dogs
(Master thesis, 2012-09-10)A novel inherited retinal disease, pigmentary chorioretinopathy, has been observed in one of the oldest purebred breed, Chinese crested. Two forms of progressive retinal atrophy (PRA), Progressive rod con degeneration ... -
The genetic basis of partial resistance to powdery mildew in Norwegian wheat
(Master thesis, 2019)Powdery Mildew caused by (Blumeria graminis) is a major problem for cereal production, especially wheat (Tritium aestivum), and is an ever-occurring pathogen in Norway. One way for developing wheat cultivars with effective ... -
Genetic diversity in five chicken lines from the Norwegian live poultry gene bank
(Master thesis, 2017)Since 1995, there has been no active breeding of commercial egg layers in Norway. The last active breeding lines, as well as other breeds of conservation value are conserved in the Norwegian live poultry gene bank. The aim ... -
Genetic diversity, selection signatures and nutritional composition of enset (Ensete ventricosum) from Ethiopia
(PhD thesis;2023:50, Doctoral thesis, 2023)Most of the agrobiodiversity exists in the form of landraces and wild relatives in traditional smallholderbased farming systems. This diversity mainly exists among neglected and underutilized species, so called orphan ... -
Genetic engineering and light quality as tools to control shoot elongation in poinsettia (Euphorbia pulcherrimaWilld ex Klotzsch)
(PhD Thesis;2013:42, Doctoral thesis, 2013)Poinsettia (Euphorbia pulcherrima Willd ex Klotzsch) is a non-food and non-feed, vegetatively propagated ornamental plant which is among the economically most important ornamentals worldwide. Desirable plant height is one ... -
Genetic improvement of feed efficiency in dairy cattle
(PhD Thesis;2017:106, Doctoral thesis, 2017)The main objective of the thesis was to investigate the requirements and possibilities for including feed efficiency (FE) in the breeding goal in dairy cattle and hence enable the genetic improvement of feed efficiency. ... -
A genetic investigation of yellow rust resistance i Norwegian wheat
(Master thesis, 2020)This thesis is a preliminary study of the genetic basis for resistance to the fungal disease yellow rust caused by Piccinia striiformis Westend f.sp tritici, (Pst) in MASBASIS, a core collection of spring and winter wheat ... -
Genetic linkage mapping and the detection of SNB resistance QTLs in Avocet x T9040 wheat field trials in the period 2012-2022
(Master thesis, 2023)With the large scientific strides made in recent years when it comes to genome sequencing, techniques for plant breeding based on genomic data is on the rise. With the ever-changing environment and the increase of ... -
Genetic parameters and response to selection for body weight, fillet traits, body size traits and survival in Nile Tilapia (Oreochromis niloticus)
(Master thesis, 2017)This study evaluates the genetic parameters and selection responses in relation to harvest body weight, fillet yield, fillet weight, body size traits (length, depth, thickness) and survival of GenoMar Supreme Tilapia (GST™) ... -
Genetic parameters of a commercial Atlantic cod (Gadus morhua) breeding program
(Master thesis, 2014-02-18)Despite many quantitative genetic studies on Atlantic cod (Gadus morhua) over the last two decades, the magnitude of heritabilities and genetic correlations for some economic important traits (growth rate, carcass quality ... -
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 ... -
Genetic studies of the wheat-Parastagonospora nodorum pathosystem
(PhD Thesis;2020:21, Doctoral thesis, 2020)Septoria nodorum blotch (SNB) caused by the necrotrophic fungus Parastagonospora nodorum is the major wheat leaf blotch disease in Norway. It reduces both yield and grain quality by causing symptoms on wheat leaves and ... -
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 ... -
Genetic study on health and robustness in Norwegian Landrace
(Master thesis, 2015-11-04)For swine production to be as efficient as possible and to value animal welfare, it is important to have robust and healthy pigs. A breeding sow that can thrive and nurture healthy piglets in different environments is a ...