Sökning: "Dutch Yorkshire"

Hittade 4 uppsatser innehållade orden Dutch Yorkshire.

  1. 1. 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

  2. 2. 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

  3. 3. Difference in health and behaviour between two different pig line crosses

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

    Författare :Jessica Vahlberg; [2019]
    Nyckelord :Swedish Yorkshire; Dutch Yorkshire; social interactions; behaviour; health;

    Sammanfattning : The most common housing system within the European Union for gestating sows and gilts have for many years been individual stalls while Sweden on the contrary has a long history, since the end of the 1980s, of group housing. The switch of breeding material in the beginning of the 2000ies in Sweden resulted in the end of breeding of the Swedish Yorkshire (SY), and instead the Dutch Yorkshire (ZY) was introduced to Swedish pig producers. LÄS MER

  4. 4. Gilts response in behaviour tests : investigation of differences between two genotypes

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

    Författare :Anna Anderberg; [2017]
    Nyckelord :Swedish Yorkshire; Dutch Yorkshire; behaviour test; human approach test; novel object test; intruder test; coping characteristics;

    Sammanfattning : When the breeding with the Swedish Yorkshire (SY) breed ended in 2012, the Dutch Yorkshire (ZY) breed was introduced to Swedish pig producers. Swedish farmers have noticed behavioural differences between SY sows and ZY sows. Different breeding goals and selection environment for the two breeds (different production systems, e.g. LÄS MER