Sökning: "egg white"
Visar resultat 1 - 5 av 27 avhandlingar innehållade orden egg white.
1. Genomics of heterosis and egg production in White Leghorns
Sammanfattning : Crossbreeding is practiced extensively in commercial breeding programs of many plant and animal species, in order to exploit heterosis, breed complementarity, and to protect pure line genetic material. The success of commercial crossbreeding schemes depends on identifying and using the right combination of breeds, lines or varieties that produce the desired crossbred offspring. LÄS MER
2. Mapping Genes Affecting Phenotypic Traits in Chicken
Sammanfattning : The purpose of gene mapping is to understand the underlying genetics of simple and complex traits like plumage colour and growth. This thesis is based on a cross between the wild ancestor of the modern chicken, the red junglefowl, and a White Leghorn line selected for high egg mass. LÄS MER
3. Proteins in Vacuo : Molecular dynamics studies of hen egg white lysozyme submitted to unfolding and relaxation conditions
Sammanfattning : Electrically neutral and charged lysozyme molecules were studied with molecular dynamics (MD) techniques. Denaturation and renaturation conditions were simulated for the system in vacuo. Experimental observations of biomolecules in vacuo were related to the conformational space accessible under unfolding-relaxation conditions. LÄS MER
4. Characterisation of social behaviour in red junglefowl and White leghorn laying hens : phenotypic and genetic studies
Sammanfattning : The objective of this thesis was, by using two model strains of chicken, red junglefowl and White Leghorn layer, to study differences in social behaviour of the species that could be derived from domestication and production related selection processes. The social phenotype characterisation was done to be able to further study the association of the social differences to specific production related traits as well as to certain genome areas in intercross and backcross lines generated from these two parental populations. LÄS MER
5. Levels of organohalogen compounds in White-tailed sea eagles (Haliaeetus albicilla) in relation to reproduction impairment in the Bothnian Sea
Sammanfattning : The white-tailed sea eagle (Haliaeetus albicilla) is in the top of the marine food chain and its existence in Sweden has been threatened several times. The species succeeded to recover from the deep decline in the 1970s when the exposure to persistent organic pollutants influenced the reproduction negatively. LÄS MER
