Sökning: "Rattus norvegicus"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Rattus norvegicus.

  1. 1. The use of temporary enrichment by laboratory rats (Rattus norvegicus) : does different types of temporary enrichment effect the behaviours of laboratory rats?

    Kandidat-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Kate Nordqvist; [2021]
    Nyckelord :animal welfare; laboratory rats; enrichment; Rattus norvegicus;

    Sammanfattning : Enrichment for laboratory animals is widely discussed and it is getting more commonly known as something that can help with increasing the animal welfare. However, more studies are needed in how enrichment is used and how it affects animal behaviour. LÄS MER

  3. 2. Tamråttan (Rattus norvegicus domesticus) och möjligheten att tillgodose dess behov

    Kandidat-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Frida Lind; [2019]
    Nyckelord :tamråttan;

    Sammanfattning : This study aimed to investigate if the selection of rat related products found in pet stores coincide with the natural behaviours of the domestic rat (Rattus norvegicus domesticus). Literature regarding the wild brown rat (Rattus norvegicus) and the wild black rat (Rattus rattus) were researched to some extent to be able to draw parallels to and learn about the needs and behaviours of the pet rat. LÄS MER

  4. 3. Construction and Characterization of 3rd Generation Saccharomyces cerevisiae Strains for PHB production form Xylose

    Master-uppsats, Lunds universitet/Teknisk mikrobiologi; Lunds universitet/Bioteknik

    Författare :Pálína Haraldsdóttir; [2018]
    Nyckelord :Applied microbiology; Teknisk mikrobiologi; Technology and Engineering;

    Sammanfattning : Poly-3-D-hydroxybutyrate (PHB) is a biopolymer naturally produced by a range of bacterial species. PHB production both from glucose and xylose has also been enabled by engineering the robust baker’s yeast Saccharomyces cerevisiae, however yields remain low. In the present study, additional modifications were carried out in S. LÄS MER

  5. 4. Enhancing cage space utilization for laboratory rats (Rattus norvegicus) : evaluation of two enrichment structures

    Kandidat-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Linnéa Särén; [2018]
    Nyckelord :rat; enrichment; tunnel; shelf; cage;

    Sammanfattning : The rearing environment of laboratory rats has a tremendous effect on their behaviour and cognitive skills. Rats housed in an enriched environment have been shown to be more resilient and better able to cope with challenges in the future. LÄS MER

  7. 5. Effekten av Bisfenol A (BPA) på hanråttors (Rattus norvegicus) reproduktion

    Kandidat-uppsats, SLU/Dept. of Anatomy, Physiology and Biochemistry

    Författare :Malin Lindell; [2015]
    Nyckelord :Bisfenol A; hanråtta; reproduktion; hormon; spermie; ROS;

    Sammanfattning : Today evidence exist that environmental chemicals deteriorate male sperm quality and that testicular cancer is increasing. Bisphenol A (BPA) is a chemical with estrogenic effects used in the manufacture of polycarbonate plastic and are found in, for instance, plastic boxes, feeding bottles and food containers. LÄS MER