Sökning: "Breeding systems"
Visar resultat 1 - 5 av 61 avhandlingar innehållade orden Breeding systems.
1. Zoom in on the precision livestock farming
Sammanfattning : Global attention to the welfare of zoo animals and livestock results in stronger legislation and higher pressure for achieving higher standards of animal welfare. Monitoring and understanding animal behaviour can assist in optimising the welfare of zoo and livestock animals. LÄS MER
2. Selection, Maternal Effects and Inbreeding in Reindeer Husbandry
Sammanfattning : In extensive grazing systems where several owners’ flocks are allowed to mix, selection strategies will also interact, due to gene flow between flocks. The aim of the thesis was to analyse breeding schemes in terms of genetic gain and rate of inbreeding (?F), given the complexity of ownership and interaction of selection strategies within a mixing reindeer population. LÄS MER
3. Bioinformatic screening for candidate mutations underlying phenotypic traits in domestic animals
Sammanfattning : Domestic animals represent excellent model organisms for gene mapping and identification of mutations underlying phenotypic traits. Humans have selected spontaneous mutations in farm and companion animals since they were domesticated and this has resulted in large phenotypic variation among different breeds. LÄS MER
4. Multiplex markers in a plant breeding perspective
Sammanfattning : Plant breeding is largely depending on the repeated selection for desirable traits. This process is both time and labour consuming, making the development of commercial plant varieties a slow and costly activity. LÄS MER
5. Seabirds as food for thought : An integrative study on seabird ecology and ecosystem services in changing marine systems
Sammanfattning : The importance of the benefits that humans obtain from the oceans is increasingly recognized, along with the rapid decline in marine resources that threatens these benefits. Studying seabirds – top predators in marine ecosystems, can provide insights about multiple pressures and the state of the oceans. LÄS MER