Search for dissertations about: "etologi"

Showing result 21 - 25 of 96 swedish dissertations containing the word etologi.

  2. 21. Using spatial distribution and behaviour to determine optimal space allowances for poultry and rabbits

    Author : Stephanie Buijs; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Previous research on the effect of stocking density on welfare has focused on adverse effects on health and behaviour. Absence of such effects does not mean that space allowance is optimal from the animals’ point of view. This thesis aimed to assess optimal space allowances by studying spatial distribution and behaviour. READ MORE

  4. 22. The Monoamine Oxidase A Gene and Antisocial Outcomes : An Examination of Genetic, Epigenetic, and Environmental Factors

    Author : David Checknita; Kent W. Nilsson; Lars Westberg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Epigenetics; Antisocial; Genotype; Maltreatment;

    Abstract : Background. Antisocial behaviour involves violation of the basic rights of others or social norms or rules. Such behaviours are indexed in diagnoses such as conduct disorder (CD) in adolescence and antisocial personality disorder (ASPD) in adulthood, which are typified by comorbidity with mood, anxiety, and substance misuse disorders. READ MORE

  5. 23. Straight from the horse’s mouth : What we can learn about rein tension by observing horse behaviour

    Author : Marie Eisersiö; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Horse-rider-interaction is largely dependent on rein tension signals which, through pressure and release, communicate with the horse about pace, direction of travel and appropriate head posture. However, the pressures applied on the horse’s mouth and/or head via the reins can cause pain and discomfort, leading to evasive behaviour and oral injuries. READ MORE

  6. 24. Stress in chickens : Effects of domestication and early experience on behaviour and welfare

    Author : Maria Ericsson; Per Jensen; Linda Keeling; Bjarne Braastad; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The domestication is the process where animals have adapted to human conditions. A prerequisite for domestication is tame behaviour towards humans and subsequently, selection for other desirable traits took place which led to changes in several behavioural and physiological parameters. READ MORE

  7. 25. Ethological control of the Mediterranean fruit fly Ceratitis capitata (Wied.)

    Author : Ilich Figueroa; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The Mediterranean fruit fly Ceratitis capitata (Diptera: Tephritidae) is a serious threat for the Bolivian fruit sector. Despite its importance, few efforts have focussed on the development of alternative techniques to broad spectrum pesticides, especially those that suppress the pest using odour-mediated behavior manipulation. READ MORE