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Visar resultat 1 - 5 av 20 uppsatser som matchar ovanstående sökkriterier.

  1. 1. 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

  3. 2. Short-term effects of early social experiences on reactions to unfamiliar pigs

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

    Författare :Stina Emriksson; [2021]
    Nyckelord :Swedish Yorkshire; Dutch Yorkshire; behaviour; social interaction; social treatment; Svensk Yorkshire; holländsk Yorkshire; beteende; social interaktion; social behandling;

    Sammanfattning : In Europe, there is an ongoing transition from individual housing to group housing for sows and gilts. The two housing systems will meet some of the needs of the sows but fail in meeting others. LÄS MER

  4. 3. 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

  5. 4. Stress and meat quality in two lines of the Yorkshire pig breed: Swedish and Dutch

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

    Författare :Andreas Andersson; [2019]
    Nyckelord :Swedish Yorkshire; Dutch Yorkshire; stress; meat quality; behaviour test; novel Arena test; startle test; lactate; temperature and pH;

    Sammanfattning : Pigs are exposed to several different environmental stressors in the modern production from weaning, mixing, crowding etc. Preslaughter stressors may result in meat quality problems, such as the formation of pale, soft and exudative meat as well as the formation of dark, firm and dry meat, which makes the meat to be unattractive. LÄS MER

  7. 5. Effekt av raslinje och social miljö under di-perioden på smågrisars hälsa och tillväxt fram till 9 veckors ålder

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

    Författare :Anna Olsson; [2019]
    Nyckelord :svensk Yorkshire; nederländsk Yorkshire; social träning; smågris; tillväxt; dödlighet; hälsa;

    Sammanfattning : Nederländsk Yorkshire (Z-linjen; ZY) är vanligt förekommande i svensk grispro-duktion idag eftersom aveln med Svensk Yorkshire (SY) lades ner 2012. I den tidi-gare svenska aveln, har grisarna indirekt selekterats för att fungera i grupphållnings-system eftersom svensk djurskyddslag skärptes i slutet av 1980-talet med att suggor ska hållas i grupp under dräktighet. LÄS MER