Sökning: "oestrus detection"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden oestrus detection.

  1. 1. Factors affecting reproductive performance and health in dairy cows in Tajikistan

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

    Författare :Michelle Alexius Lindgren; [2017]
    Nyckelord :reproduction; dairy production; Tajikistan;

    Sammanfattning : In Central Asia one can locate the smallest landlocked country of the former Soviet Union; Tajikistan. The country is a presidential republic and has been since the independence from Russian Soviet 1991 and is now one of the 15 former Soviet countries with the lowest per capita GDP. LÄS MER

  3. 2. Automatiska registreringar som kan påvisa brunst hos mjölkkor

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

    Författare :Linnea Gustafsson; [2015]
    Nyckelord :brunstregistrering; mjölkkor; effektivitet; noggrannhet; oestrus detection; dairy cattle; efficiency; accuracy;

    Sammanfattning : Med dagens växande besättningar är det svårare att upptäcka brunst hos mjölkkor genom visuell observation. Detta leder till ekonomiska förluster, minskat genetiskt framsteg, högre inkalvningsålder och längre kalvningsintervall. LÄS MER

  4. 3. Use of dogs as odour detectors : a review of the scientific literture

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

    Författare :Maja Blom; [2013]
    Nyckelord :scent detection; odour detection; canine detection; olfactory; dog; cadaverdogs; oestrus detection; cancer detection; arsondogs; scatdogs;

    Sammanfattning : A lot of various substances can be detected by dogs, as oestrous in cows, endangered species or non-biological substances like accelerants, narcotics, explosives, mines and pollutions and biological substances like identity (suspects), cancer (breast, lung, colorectal and bladder cancer), human remains (cadaver), bacteria and mould in buildings. The dogs are trained using non-scientific methods and not much research in detection training exists. LÄS MER

  5. 4. Brunstvisningsförmåga hos SRB- och Holsteinkvigor

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

    Författare :Camilla Mattsson; [2013]
    Nyckelord :brunstvisningsförmåga; brunststyrka; brunstlängd; ståbrunst; progesteron; östrogen; kvigor;

    Sammanfattning : Oestrus in dairy cattle has changed over the last decades, the duration has decreased and the intensity of oestrus has declined. A possible explanation can be their high and increasing milk production. Heifers ability to show oestrus is probably not affected to the same extent. LÄS MER

  7. 5. Brunstvisningsförmåga hos mjölkkor- en beteendenstudie

    L3-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Klara Smedberg; [2012]
    Nyckelord :mjölkkor; brunst; brunstvisning; ståreflex;

    Sammanfattning : Oestrus in dairy cattle has changed over the last decades; the intensity of oestrus has declined and the duration decreased. Several studies have shown that not all dairy cows stand to be mounted, and that oestrus expression in many cases may be characterized by other behaviours. LÄS MER