Essays about: "gyltor"

Showing result 6 - 10 of 18 essays containing the word gyltor.

  1. 6. Patologiska förändringar och behandling av halta suggor i svenska grisbesättningar

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Michelle Pettersson; [2019]
    Keywords : hälta; antibiotikabehandling; suggor;

    Abstract : Upp mot 50 % av suggorna inom grisproduktionen slås ut årligen, vilket inte är gynnsamt för varken produktionen, ekonomin eller djurvälfärden. Ben- eller klövproblem och trauma som ger hälta hos suggor är en vanlig förekommande orsak till oplanerad utslagning av suggor. READ MORE

  3. 7. 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

  4. 8. Effekt av antibiotika i spädningsvätska för spermier på mikrofloran i cervikala delen av suggans vagina

    University essay from SLU/Dept. of Clinical Sciences

    Author : Cecilia Kellerman; [2019]
    Keywords : antibiotikaresistens; artificiell insemination; cervix; spädningsvätska; sugga; vagina; normalflora;

    Abstract : Artificiell insemination med färsk sperma är den vanligaste reproduktionstekniken inom grisuppfödningen i många delar av världen. Vid framställning av semindoser späds ejakulatet med särskilda spädningsvätskor innehållande antibiotika som tillsätts för att undvika att de bakterier som kontaminerat ejakulatet under samling och framställning växer till under lagringen och skadar spermierna och orsakar infektion eller nedsatt fertilitet hos suggan. 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