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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Behaviours and experiences as indicators for the result in a behavioural test for dogs

Bjällerhag, Nathalie January 2013 (has links)
In 2005 Swedish Armed Forces (SAF) started a breeding program of military working dogs. The dogs leave SAF’s kennel at an age of 8 weeks and live with puppy raisers. To evaluate the suitability of dogs for military work the dogs conduct a behavioural test at an age of 15-18 months. An “Index value” is extracted from this behavioural test. The puppy raisers answered a modified version of Canine Behavioral Assessment and Research Questionnaire (C-BARQ) when the dogs were approximately 12 months old. Answered questionnaires and results from the behavioural test were obtained for 59 dogs. Dogs that had passed the behavioural test had tendency for higher scores for “Trainability” (p = 0.078) and “If lived with other animals” (p = 0.066). Failing dogs had significantly higher score for “Stranger Directed Fear” (p = 0.006), ”Non-Social Fear” (p = 0.005), “Dog Directed Fear” (p = 0.021), “Hours of daily activation” (p = 0.001), “Mounting objects” (p = 0.012), and a tendency for higher risk of “Urinating when home alone” (p = 0.058). In a regressions between the “Index value” and the values of the questions from C-BARQ, the “Index value” was negatively correlated to “Stranger Directed Fear” (p = 0.002), “Non-social Fear” (p = 0.003), and “Dog Directed Fear” (p = 0.006). The “Index value” was positively correlated to “Trainability” (p = 0.013), “Hours left home alone” (p=0.043), “Hyperactive” (p = 0.018), “Chases shadows/light spots” (p = 0.043), and a positive tendency for “Chewing on inappropriate objects” (p = 0.075). From a PCA at the categories in C-BARQ, 3 components were extracted. All three components had a correlation to the “Index value”. The results show that the use of C-BARQ can indicate whether the dog will pass the behavioural test or not.
2

Beteendesyndrom hos blankål (Anguilla anguilla): aktivitet och respons på främmande objekt i en artificiell miljö / Behavioural syndromes in silver eel (Anguilla anguilla): activity and response to novel objects in an artificial environment

Ingelman Åslund, Trollet January 2020 (has links)
Ökad kunskap om djurs beteendesyndrom kan möjliggöra förbättrade bevarandeåtgärder för hotade arter. I den här studien genomgick 108 blankålar (Anguilla anguilla) två beteendetester; “open-field test” och “novel-object test”. Ålars morfologi och val av föda, habitat och dygnsaktivitet har i tidigare studier visats hänga ihop. I den här studien undersökte jag om det fanns något samband mellan ålarnas morfologi, aktivitet samt respons på främmande föremål. De ålar som var mest aktiva under open-field-testet var också de ålar som visade störst intresse för det främmande föremålet i novel-object-testet. Det fanns dock inte något samband mellan morfologi och aktivitet eller mellan morfologi och respons på främmande föremål. Detta innebär att ett utforskande och djärvt beteendesyndrom har upptäckts hos vissa av ålarna, medan den bakomliggande faktorn fortsätter vara okänd. / Increased knowledge of behavioural syndromes may contribute to enhancing our conservation methods for endangered species. In this study, the behavior of 108 silver eels (Anguilla anguilla) was assessed in two assays: an open-field test and a novel-object test. Eel morphology and diel activity as well as diet and habitat use have previously been shown to correlate with each other. In this study, I investigated the potential relationship between the morphology, activity and response to a novel object. The most active eels during the open-field test were also the ones that expressed the most interest for the novel object. There was, however, no correlation between morphology and activity or morphology and response to the novel object. This means an exploring and bold behaviour syndrome was discovered amongst some of the eels, whilst the underlying cause remains unknown.

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