Sökning: "cow"

Visar resultat 1 - 5 av 78 avhandlingar innehållade ordet cow.

  1. 1. Nyttiga bakterier och sjuka djur : En technoscience-resa från nätverksbildning till riskkonstruktion

    Författare :Lena Molin; Ulf Jonsson; Sven Fritz; Henrik Glimstedt; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; tehnoscience; hybrid; cyborg; risk; network; ANT; actant; pig; cow; bacteria; situated; nature; construction of nature; body; transgression; construction of scientific facts; truth; scientific process; knowledge production; risk construction; biotechnology; functional foods; food sector; high technology; alliances; innovation; Economic history; Ekonomisk historia;

    Sammanfattning : The aim of the dissertation is to examine the mechanisms at work when networks are formed and risk constructions made as bodies encounter frontline technology within the food sector. The concept of technoscience TS, is the link uniting the escalating technology of risk society, rebellious nature and the insidious threats of substances absorbed straight into the metabolism of our bodies through the food that we eat. LÄS MER

  3. 2. On-farm cow mortality in Swedish dairy herds

    Författare :Karin Alvåsen; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : A high rate of on-farm cow mortality (i.e. unassisted death and euthanasia) is both a financial concern and an important animal welfare issue. The overall aim of this thesis was to evaluate the development of mortality in Swedish dairy herds and to identify characteristics associated with on-farm mortality at cow and herd levels. LÄS MER

  4. 3. Factors associated with spontaneous oxidized flavour in cow´s milk

    Författare :Jessica Juhlin; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Spontaneous oxidized flavour (SOF) is an off-flavour in milk that has received attention in only a few countries, primarily due to lack of monitoring. The poly unsaturated fatty acids in milk are considered to make it more prone to oxidize, with effects like shorter shelf life of dairy products and a reduction in consumer acceptance of milk. LÄS MER

  5. 4. Feed efficiency in dairy cows: individual cow variability in component traits

    Författare :Abdulai Guinguina; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Feed efficiency (FE) varies between cows, and this variation is linked to the variation in energy metabolism variables. Respiration chambers are needed for measuring energy metabolism variables while individual cow dry matter intake (DMI) records are necessary for measuring FE, but these are difficult to obtain due to cost and logistic constraints. LÄS MER

  7. 5. Methane production in dairy cows : individual cow variability in methane production

    Författare :Edward Hernando Cabezas Garcia; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Enteric methane (CH4) emissions vary between individual cows, and this variation is attributed to both animal and dietary factors. In addition, measurement technique of in vivo CH4 emissions from individual animals still represents a major challenge for successful emissions mitigation strategies. LÄS MER