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Understanding Fear and Stranger-Directed Aggression in Companion Dogs
| Contributor(s):: Hannah Flint
Stranger-directed aggression is both a public safety and animal welfare concern. The objectives of this thesis were to identify risk factors for stranger-directed aggression in dogs, to assess the effect of targeted owner training on the accuracy of ratings of fear in dogs, and to identify...
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Long-term behavioral resilience in search-and-rescue dogs responding to the September 11, 2001 terrorist attacks
| Contributor(s):: Hare, Elizabeth, Kelsey, Kathleen M., Niedermeyer, Greta M., Otto, Cynthia M.
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Behavioural responses of two breeds of domestic chicks to feed and alarm call playback
| Contributor(s):: Iyasere, Oluwaseun S., Durosaro, Samuel O., Oke, Oyegunle E., Omotosho, Tolulope F., Salako, Mojisola A., Oyeniran, Victor J., Oyetunji, Damilola E., Daramola, James O.
The aim of this study was to determine breed differences in the behavioural responses of two domestic chicks to feed and alarm playback calls. Thirty two (32) each of Nigerian indigenous chicks (NIC) and commercial broiler chicks (CBC) of the same age group (a day old) were divided into four...
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Test of temperament in mink is influenced by a shelf in the front of the cage and the stimulus size rather than by features of the test person
| Contributor(s):: Henriksen, Britt I. F., Møller, Steen H., Malmkvist, Jens
The study evaluates the effect of different test conditions on the temperament of farm mink, using the stick test. We hypothesised that mink perceive some test conditions as more fear eliciting. Specifically, we hypothesised that (A) the dimension of the presented stimulus in the test, a wooden...
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Comparative assessment of general behaviour and fear-related responses in hatchery-hatched and on-farm hatched broiler chickens
| Contributor(s):: Giersberg, Mona F., Poolen, Ilse, de Baere, Kris, Gunnink, Henk, van Hattum, Theo, van Riel, Johan W., de Jong, Ingrid C.
Traditionally, broiler chickens hatch in the hatchery and they are usually not provided with feed and water until placement at the farm. This can have negative effects on their health and welfare. Therefore, alternative systems providing early nutrition, for instance by hatching eggs in a poultry...
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Development and consistency of fearfulness in horses from foal to adult
| Contributor(s):: Christensen, Janne Winther, Beblein, Carina, Malmkvist, Jens
Understanding the development and consistency of behavioural responses across life stages is of both fundamental and applied interest. In horses, fearfulness is particularly important because fear reactions are a major cause of human-horse accidents, and because fear is a negative emotional state...
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Brown and white egg-layer strain differences in fearfulness and stress measures
| Contributor(s):: Nelson, Jill R., Settar, Petek, Berger, Emily, Wolc, Anna, O’Sullivan, Neil, Archer, Gregory S.
Different genetic lines of laying hens may show varying levels of fearfulness in response to stressful events or situations. It is important to select appropriate genetic strains when keeping hens in alternative housing systems to minimize health and production issues caused by fear and stress....
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The effect of qualitative feed restriction in broiler breeder pullets on fear and motivation to explore
| Contributor(s):: Tahamtani, Fernanda M., Riber, Anja B.
Restrictively fed broiler breeders are known to have increased motivation to explore and reduced fearfulness because hunger increases the motivation to search for and to acquire food, forcing the birds to face and engage with aversive stimuli that they would otherwise avoid. The aim of this study...
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Thermography as a Non-Invasive Measure of Stress and Fear of Humans in Sheep
| Contributor(s):: Simona Cannas, Clara Palestrini, Elisabetta Canali, Bruno Cozzi, Nicola Ferri, Eugenio Heinzl, Michela Minero, Matteo Chincarini, Giorgio Vignola, Emanuela Dalla Costa
No data have been published on the use of infrared thermography (IRT) to evaluate sheep emotions. We assessed whether this technique can be used as a non-invasive measure of negative emotions. Two voluntary animal approach (VAA) tests were conducted (and filmed) on five ewes before and after...
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Effect of a Standardized Four-Week Desensitization and Counter-Conditioning Training Program on Pre-Existing Veterinary Fear in Companion Dogs
| Contributor(s):: Anastasia Stellato, Sarah Jajou, Cate E. Dewey, Tina M. Widowski, Lee Niel
Many dogs show signs of fear during veterinary appointments. It is widely recommended to use desensitization and counter-conditioning training to reduce this fear. However, the efficacy of this method for reducing veterinary fear has not been examined. We assessed the effect of a standardized...
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Reliability of Fear Assessment in Growing Pigs Exposed to a Novel Object Test in Commercial Conditions
| Contributor(s):: Dalmau, Antoni, Mainau, Eva, Velarde, Antonio
The objective of this study was to assess the reliability and feasibility of a novel object test assessing fear in pigs in commercial conditions. A total of 18 commercial farms were visited, and 321 pens housing 4,220 growing pigs were assessed. Three balloons were used as a novel stimulus....
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My Reflections on Understanding Animal Emotions for Improving the Life of Animals in Zoos
| Contributor(s):: Grandin, Temple
Scientists are often reluctant to attribute emotions to nonhuman animals that are similar to human emotions. When the author published her early studies, reviewers prohibited the word fear. Fearful behavior had to be described as agitated. The core emotional systems described by Panksepp may...
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Temperamental turkeys: Reliability of behavioural responses to four tests of fear
| Contributor(s):: Erasmus, Marisa, Swanson, Janice
Open field (OF), tonic immobility (TI), voluntary approach (VA) and novel object (NO) tests are used to assess fear responses, activity levels and coping styles of poultry. Fear tests are also used as part of welfare assessment programmes. Little is known about fear responses of turkeys....
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Reliability and validity of a questionnaire survey in canine anxiety research
| Contributor(s):: Tiira, Katriina, Lohi, Hannes
Canine behavior can be assessed through behavioral testing or questionnaire surveys. Behavioral tests, often observed by independent experts, can provide objective data, but capture only a short behavioral sequence in a defined situation and are practical only for small study cohorts....
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Natural incubation patterns and the effects of exposing eggs to light at various times during incubation on post-hatch fear and stress responses in broiler (meat) chickens
| Contributor(s):: Archer, Gregory S., Mench, Joy A.
Although environmental conditions during incubation can affect poultry welfare, one factor often overlooked in the commercial incubation of eggs is light. Light stimulation during embryonic development is now known to affect the physiology and behavior of broiler (meat) chickens post-hatch, but...
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Measuring fear in dogs by questionnaires: An exploratory study toward a standardized inventory
| Contributor(s):: Temesi, Andrea, Turcsán, Borbála, Miklósi, Ádám
Several types of questionnaires are in use to measure fear-related behaviour in family dogs. Our aim was to develop a general questionnaire based on relevant previous studies in order to facilitate the standardization of measurements of fear-related behaviour in dogs (social fear, non-social...
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Locomotor play of veal calves in an arena: Are effects of feed level and spatial restriction mediated by responses to novelty?
| Contributor(s):: Rushen, Jeffrey, de Passillé, Anne Marie
When calves are placed in an open arena, they perform locomotor play, which provides a time-efficient means of assessing playfulness. To use this as a method of assessing welfare, we need to relate playfulness to other welfare indicators and understand what factors influence results. The novelty...
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Icelandic horses with the Silver coat colour show altered behaviour in a fear reaction test
| Contributor(s):: Brunberg, Emma, Gille, Sanna, Mikko, Sofia, Lindgren, Gabriella, Keeling, Linda J.
The colour of a horse's coat has long been discussed to reflect its temperament. One opinion is that Silver coloured horses are nervous, difficult to handle and react more strongly to different fear stimuli. The objective with the present study was to investigate if mutations associated with the...
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Fear responses to novelty in testing environments are related to day-to-day activity in the home environment in dairy cattle
| Contributor(s):: MacKay, Jill R. D., Haskell, Marie J., Deag, John M., van Reenen, Kees
Behavioural tests for cattle take time to perform and can be stressful for the animals but are currently the only way of assessing behavioural reactions to fear-causing stimuli in a standardised manner. It may be possible to use behavioural data collected remotely in the home pen environment...
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Fear responses to noises in domestic dogs: Prevalence, risk factors and co-occurrence with other fear related behaviour
| Contributor(s):: Blackwell, Emily J., Bradshaw, John W. S., Casey, Rachel A.
Behavioural signs of fear or anxiety on exposure to noises in owned domestic dogs have been suggested in clinical studies to be common and a significant welfare concern. In this study two approaches were taken to investigate the occurrence of, and risk factors for, these behaviours: a postal...
