Search for dissertations about: "Breeding systems"

Showing result 1 - 5 of 57 swedish dissertations containing the words Breeding systems.

  2. 1. Zoom in on the precision livestock farming

    Author : Keni Ren; Johannes Karlsson; Hibo Li; Matti Pastell; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; precision livestock farming; computer vision; sensor fusion; object tracking; real-time location system; animal behaviour; machine learning;

    Abstract : 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. READ MORE

  4. 2. Selection, Maternal Effects and Inbreeding in Reindeer Husbandry

    Author : Lars Rönnegård; Högskolan Dalarna; []
    Keywords : breeding programme; communal grazing; randombred populations; Rangifer tarandus tarandus; semidomestic reindeer; gene flow; reindeer; animal breeding; gene flow; random mating; breeding methods; genetic inheritance; population structure; extensive husbandry; sweden;

    Abstract : 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. READ MORE

  5. 3. Bioinformatic screening for candidate mutations underlying phenotypic traits in domestic animals

    Author : Shumaila Sayyab; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : 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. READ MORE

  6. 4. Multiplex markers in a plant breeding perspective

    Author : Mats Hansen; Biokemi och Strukturbiologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant biochemistry; plant breeding; SNP; RAPD; molecular markers; AFLP; Växtbiokemi;

    Abstract : 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. READ MORE

  7. 5. Seabirds as food for thought : An integrative study on seabird ecology and ecosystem services in changing marine systems

    Author : Martina Kadin; Thorsten Blenckner; Morten Frederiksen; Olof Olsson; Johan Elmberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; seabirds; ecosystem services; social-ecological systems; marine systems; fisheries; foraging ecology; provisioning behaviour; common murre; common guillemot; Uria aalge; Stora Karlsö; Baltic Sea; naturresurshushållning; Natural Resources Management;

    Abstract : 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. READ MORE