Search for dissertations about: "dairy farm"

Showing result 1 - 5 of 37 swedish dissertations containing the words dairy farm.

  2. 1. Environmental Improvments of the Post-Farm Dairy Chain: Production Management by Systems Analysis Methods

    Author : Johanna Berlin; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; environment; cheese; dairy products; life cycle assessment; dairy; production scheduling; environmental systems analysis; actor analysis; yoghurt; LCA;

    Abstract : The production of dairy products is becoming more centralised at the same time as the number of different products is steadily increasing. In this thesis. the environmental impact of such ongoing development trends in the post-farm dairy chain was evaluated and improvements were suggested. READ MORE

  4. 2. Health and herd health planning in organic dairy herds

    Author : Karin Sjöström; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The status in European organic dairy production does not in all aspects, meet organic principles with regards to the aims of good animal welfare and health, and consumers’ expectations, and therefore needs to be improved. The aims of this thesis were to; assess the status of animal health in organic dairy herds; assess the structural characteristics, and their relation to implementation, of animal health plans; and to investigate a structured participatory and farm-centric approach. READ MORE

  5. 3. Progesterone profiles, oestrus expression and pregnancy in dairy cows

    Author : Sofia Nyman; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The cow’s ability to reproduce is essential for milk production. Traditionally genetic evaluations for fertility have been based on measures on insemination- and calving dates, which in general are highly influenced by on-farm decisions. Unfortunately, the low heritability of classical fertility traits makes the genetic improvement slow. READ MORE

  6. 4. Methane production in dairy cows : individual cow variability in methane production

    Author : Edward Hernando Cabezas Garcia; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE