Essays about: "Swedish Yorkshire"

Showing result 6 - 10 of 20 essays containing the words Swedish Yorkshire.

  1. 6. Difference in general behaviour and social interactions of young Yorkshire gilts in different social environments

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Linda Marie Hannius; [2019]
    Keywords : Swedish Yorkshire; Dutch Yorkshire; behaviour; social interactions; social environment;

    Abstract : In Sweden, there was a switch of breeding material for pigs in year 2012 where Swedish producers were introduced to the Dutch Yorkshire (DY) instead of the Swedish Yorkshire (SY). Gestating sows have, in Sweden, been kept in group housing since the 1980s while DY gilts on the contrary have been kept in individual stalls. READ MORE

  3. 7. Skillnader i dibeteende mellan raserna Svensk och Holländsk Yorkshire - i digivningsboxar där smågrisarna har tillgång till suggan och smågrisarna i grannboxen

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Isabel Lundahl; [2019]
    Keywords : gris; griskultingar; dibeteende; korsdi; Yorkshire;

    Abstract : In Sweden we produced 2,6 million slaughter pigs last year (2018). In 2012, the Swedish Yorkshire was exchanged with Dutch Yorkshire in Sweden because of economic reasons and the effective breeding development within the Dutch breed. However, Dutch Yorkshire has through breeding been adapted to be kept “fixed” through farrowing and lactation. READ MORE

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

    University essay from SLU/Dept. of Animal Breeding and Genetics

    Author : Jessica Vahlberg; [2019]
    Keywords : Swedish Yorkshire; Dutch Yorkshire; social interactions; behaviour; health;

    Abstract : 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. READ MORE

  5. 9. Factors influencing variation in birth weight and its impact on later performance in Swedish Yorkshire pigs

    University essay from SLU/Dept. of Animal Breeding and Genetics

    Author : Paulina Wahlgren; [2018]
    Keywords : Piglets; birth weight; field performance test; backfat thickness; growth performance;

    Abstract : The phenotypic variation in piglet birth weight caused by gender, birth parity number and litter size, and later how this variation in birth weight influenced growth rate until 100 kg and backfat thickness at 100 kg live weight were analysed in this study. Data on purebred Swedish Yorkshire pigs from 13 nucleus herds was the base for the analyses. READ MORE

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

    University essay from SLU/Dept. of Animal Breeding and Genetics

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

    Abstract : 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. READ MORE