Sökning: "littermates"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet littermates.

  1. 1. Pen-rotation scheme for growing pigs : effects on pig aggression and social affiliation

    Master-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Moses Agbenyegah Gadri; [2023]
    Nyckelord :aggressive; affiliative; fighting; littermates; behaviours; reuniting;

    Sammanfattning : This master project aimed to assess if a pen-rotation scheme mitigated the effects of reuniting pigs after temporal separation. Six groups of crossbred (Yorkshire and Hampshire) growing pigs, (8 - 10 littermates per group) aged between 12 – 13 weeks, were video recorded separately in their original home pens for 2 h before a temporal separation to undergo the pen rotation scheme in pairs for 3 days. LÄS MER

  3. 2. Developing a Method to Study the Impact of Microbial DNA on the Brain Related to Alzheimer’s Disease – Can Food Make a Change?

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Fuh-Tzu Yang; [2022]
    Nyckelord :DNA extraction; Microbiome DNA enrichment; Host DNA depletion; 16S rRNA sequencing; Alzheimer’s disease; Gut-brain axis; Microbiota; Microbial DNA; Black currant; Applied Nutrition and Food Chemistry; Medicine and Health Sciences;

    Sammanfattning : Understanding the gut-brain-microbiota axis can help us provide a new tool to manage conditions such as Alzheimer’s. However, a major challenge is selectively amplifying the bacterial DNA which is present at a much lower level than the host DNA. LÄS MER

  4. 3. Variation in sow and piglet behaviour and welfare over time during a 5-week nursing period in individual loose housing pens

    Master-uppsats, SLU/Dept. of Animal Nutrition and Management

    Författare :Byeonguk Yang; [2021]
    Nyckelord :Nursing behaviour; suckling behaviour; sow welfare; piglet welfare; maternal behaviour;

    Sammanfattning : This master thesis aimed to investigate variation in the sow and piglet behaviour and welfare over time during a 5-week nursing period in the loose housing pen. This study was performed through analysis of video-recorded behaviours in 17 Swedish and Dutch Yorkshire sows and their piglets (284 piglets, pure-bred Yorkshire × Hampshire, average litter size with standard error = 16. LÄS MER

  5. 4. Gyltors anpassningsförmåga till nya miljöer : i relation till ras och social miljö

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

    Författare :Ida Hellsten; [2020]
    Nyckelord :gris; gylta; social behandling; genotyp; isolering;

    Sammanfattning : Since 1988, Sweden has had legal requirements to keep gestation sows group-housed. In 2012 there was a switch in the Swedish breeding material ant the Dutch Yorkshire (DY) was introduced to the Swedish producers, a breed that has been kept in individual stalls in comparison to the Swedish breeds, like Swedish Yorkshire (SY) that DY replaced. LÄS MER

  7. 5. Påverkar kullstorleken smågrisens utveckling fram till födseln?

    Kandidat-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Isabelle Westergren; [2016]
    Nyckelord :livmoder; ägglossning; placenta; foster; kullstorlek; tillväxthämning; uterus; ovulation rate; placenta; fetus; litter size; intrauterine growth restriction;

    Sammanfattning : The aim of this literature review was to analyze if the number of fetuses in the uterus will have an effect on the development of the fetuses until birth. Breeding for larger litter size creates a possibility to increase the number of weaned piglets. LÄS MER