Sökning: "Farmed"

Visar resultat 16 - 20 av 37 avhandlingar innehållade ordet Farmed.

  1. 16. Pathogenesis and Cell Biology of the Salmon Parasite Spironucleus salmonicida

    Författare :Ásgeir Ástvaldsson; Staffan Svärd; Jon Jerlström-Hultqvist; Scott Dawson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diplomonads; Spironucleus; Giardia; genome; annexin; oxygen stress; APEX; pathology;

    Sammanfattning : Spironucleus species are classified as diplomonad organisms, diverse eukaryotic flagellates found in oxygen-deprived environments. Members of Spironucleus are parasitic and can infect a variety of hosts, such as mice and birds, while the majority are found to infect fish. LÄS MER

  3. 17. Nutrition of Arctic charr (Salvelinus alpinus) and Eurasian perch (Perca fluviatilis) and evaluation of alternative protein sources

    Författare :Markus Langeland; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The aim of this thesis was to estimate the dietary lysine requirement of Eurasian perch (Perca fluviatilis), to study the digestive enzyme activity in perch and Arctic charr (Salvelinus alpinus) and the utilization of meals of microbial and mussel meals. Juvenile Eurasian perch were fed semi-purified diets containing graded levels of lysine (12. LÄS MER

  4. 18. Nutritive value and use of locally available low-cost feed ingredients for tilapia farming in Tanzania

    Författare :Francis Pius Mmanda; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Fish farming has become popular in Tanzania in recent years, resulting in an increase in the number of fishponds. This has caused a corresponding demand for good-quality fish feeds at affordable prices, for sustainable aquaculture production and productivity. LÄS MER

  5. 19. Butterfly Diversity and Dispersal in Fragmented Grasslands

    Författare :Erik Öckinger; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Naturvetenskap; Djurekologi; Animal ecology; Ekologi; Ecology; Lepidoptera; Landscape ecology; Insects; Species richness; Fragmentation; Mobility; Natural science; Source-sink dynamics; Metapopulations;

    Sammanfattning : During the last decades, the distribution and abundance of many European species of birds, plants and insects in agricultural landscapes have declined due to agricultural intensification. To be able to mitigate these declines, it is essential to know the relative importance on local and regional ecological processes on population persistence and patterns of species richness. LÄS MER

  7. 20. Sustainable farming of Arctic charr (Salvelinus alpinus)

    Författare :Hanna Carlberg; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Arctic charr (Salvelinus alpinus L.) is a salmonid that is well adapted to cold waters and is commonly farmed in open net cages. A breeding program has enabled a relatively large production in Sweden, providing a continuous supply of fresh fish to the market. LÄS MER