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  1. Using personality ratings and cortisol to characterize individual differences in African Elephants (Loxodonta africana)

    Contributor(s):: Grand, Alison P., Kuhar, Christopher W., Leighty, Katherine A., Bettinger, Tamara L., Laudenslager, Mark L.

    The development of indices to assist in the management of captive animals and assess their well-being is a key priority for those responsible for providing care to animals in captivity, including the zoological community. In particular, the design of indices for use with some of the more...

  2. Towards a more objective assessment of equine personality using behavioural and physiological observations from performance test training

    Contributor(s):: König von Borstel, Uta, Pasing, Stephanie, Gauly, Matthias

    Current definitions of horse personality traits are rather vague, lacking clear, universally accepted guidelines for evaluation in performance tests. Therefore, the aim of the present study was to screen behavioural and physiological measurements taken during riding for potential links with...

  3. Repeatability and reliability of scores from ridden temperament tests conducted during performance tests

    Contributor(s):: König v. Borstel, Uta, Pirsich, Wiebke, Gauly, Matthias, Bruns, Erich

    Current scores for equine personality traits assessed during performance tests are characterised by high means and inadequate variation, hampering genetic selection for these traits. A number of temperament and related behaviour tests have been developed in order to make assessment of equine...

  4. Preliminary analysis of an adjective-based dog personality questionnaire developed to measure some aspects of personality in the domestic dog (Canis familiaris)

    Contributor(s):: Mirkó, Erika, Kubinyi, Enikő, Gácsi, Márta, Miklósi, Ádám

    In this paper we present a novel adjective-based dog personality questionnaire, which was successfully implemented to characterise the behaviour of individual dogs. The scales obtained by Principal Component Analysis (Stranger-directed Sociability, Activity, Aggressiveness and Trainability)...

  5. Personality traits and the effects of DHA supplementation in the budgerigar (Melopsittacus undulatus)

    Contributor(s):: Callicrate, Taylor Eilers, Siewerdt, Frank, Koutsos, Elizabeth, Estévez, Inma

    We investigated the hypotheses that a bold-shy personality axis exists in the budgerigar (Melopsittacus undulatus) and that dietary docosahexaenoic acid (DHA) supplementation has a significant effect on budgerigar personality and immune responses. DHA is an integral component of the brain known...

  6. Learning and context-specific exploration behaviour in hatchery and wild brown trout

    Contributor(s):: Adriaenssens, Bart, Johnsson, Jörgen I.

    In this study we investigate whether rearing environment (wild vs. hatchery) affects the ability of brown trout parr (Salmo trutta) to learn two foraging tasks. Hatchery- and wild-reared brown trout were trained in two different foraging tasks: locating food hidden in a maze and finding a cryptic...

  7. Individual differences in temperament and behavioral management practices for nonhuman primates

    Contributor(s):: Coleman, Kristine

    Effective behavioral management plans are tailored to the unique behavioral patterns of each individual species. However, even within a species behavioral needs of individuals can vary. Factors such as age, sex, and temperament can affect behavioral needs of individuals. While some of these...

  8. Individual differences in metabolism predict coping styles in fish

    Contributor(s):: Martins, Catarina I. M., Castanheira, Maria F., Engrola, Sofia, Costas, Benjamín, Conceição, Luís E. C.

    Studies on metabolism usually rely on measurements of oxygen consumption obtained in respirometry chambers. Despite rigorous standardization there is still considerable inter-individual variation in metabolic rates which is often ignored. Furthermore, housing in respirometry chambers implies...

  9. Effect of fasting on self-feeding activity in juvenile sea bass (Dicentrarchus labrax)

    Contributor(s):: Benhaïm, David, Bégout, Marie-Laure, Péan, Samuel, Brisset, Blandine, Leguay, Didier, Chatain, Béatrice

    In various experiments under self-feeding conditions, sea bass groups could be divided into three categories regarding feeder actuation: high, low and zero-triggering fish. In all cases few high-triggering fish were responsible for a high percentage of the feed delivery. A question was raised...

  10. Coping personality type and environmental enrichment affect aggression at weaning in pigs

    Contributor(s):: Melotti, Luca, Oostindjer, Marije, Bolhuis, J. Elizabeth, Held, Suzanne, Mendl, Michael

    This study investigated the effects of different environmental treatments and personality types on aggression at mixing of newly weaned domestic piglets. From birth to weaning, 16 litters were housed with their dams in either barren (B) or larger, substrate-enriched (E) environments. At 15 days...

  11. Co-variations between perceived personality traits and quality of the interaction between female riders and horses

    Contributor(s):: Wolframm, Inga Astrid, Meulenbroek, Ruud Gerardus Johannes

    The current study seeks to investigate the relationship between perceived equine and rider personality traits on the one hand and quality of horse–rider relationships on the other. An Internet questionnaire examined the self-perceived personality traits of 2525 horse–female rider dyads that...

  12. Behavioral traits detected in shelter dogs by a behavior evaluation

    Contributor(s):: Dowling-Guyer, Seana, Marder, Amy, D’Arpino, Sheila

    Animal shelters and other organizations caring for and placing dogs regularly use behavioral test batteries to evaluate a dog's behavioral tendencies in order to make safe and appropriate placements. Behavioral tendencies, or behavioral traits, are driven in part by personality. Therefore, test...

  13. Personality is associated with feeding behavior and performance in dairy calves

    Contributor(s):: Neave, H. W., Costa, J. H. C., Weary, D. M., von Keyserlingk, M. A. G.

  14. Innate preference for native prey and personality implications in captive amur tigers

    Contributor(s):: Wang, Qi, Liu, Dan, Holyoak, Marcel, Jia, Teng, Yang, Shengfan, Liu, Xifeng, Kong, Xuanmin, Jiang, Guangshun

    Prey recognition is vital for predation and the survival of carnivores. In theory, carnivores recognize prey by instinct or learning. However, the instinct hypothesis has little support. In addition, it remains unknown if prey recognition capability correlates with personality. Here, we test if...

  15. Is personality of young fish consistent through different behavioural tests?

    Contributor(s):: Colchen, Tatiana, Faux, Elodie, Teletchea, Fabrice, Pasquet, Alain

    Most studies carried out on personality recognized that personality is defined by behavioural traits consistent through time and/or contexts. In fish, most studies on personality were performed either on juveniles (aged between 6months and 1year) or adults, but very few focused on the early life...

  16. The backtest in pigs revisited—Inter-situational behaviour and animal classification

    Contributor(s):: Zebunke, Manuela, Nürnberg, Gerd, Melzer, Nina, Puppe, Birger

    Since the introduction of the backtest for the early detection of coping strategies in piglets by Hessing in the 1990s, this behavioural test has been intensively investigated with ambiguous results. One possible explanation for this lack of consistency might be the different classification...

  17. Chimpanzees with positive welfare are happier, extraverted, and emotionally stable

    Contributor(s):: Robinson, Lauren M., Altschul, Drew M., Wallace, Emma K., Úbeda, Yulán, Llorente, Miquel, Machanda, Zarin, Slocombe, Katie E., Leach, Matthew C., Waran, Natalie K., Weiss, Alexander

    Facilities housing captive animals are full of staff who, every day, interact with the animals under their care. The expertise and familiarity of staff can be used to monitor animal welfare by means of questionnaires. It was the goal of our study to examine the association between chimpanzee (Pan...

  18. The association between infrared thermal imagery of core eye temperature, personality, age and housing in cats

    Contributor(s):: Foster, Shannon, Ijichi, Carrie

    Understanding individual responses to stress is a key aspect of maintaining optimal animal welfare. This is especially important where animals are being kept in sub-optimal environments or where the species may not clearly demonstrate stress. Therefore, the aim of this study was to investigate...

  19. Comparing two canine personality assessments: Convergence of the MCPQ-R and DPQ and consensus between dog owners and dog walkers

    Contributor(s):: Posluns, Julie A., Anderson, Rita E., Walsh, Carolyn J.

    Despite the number of emerging questionnaire-based canine personality assessments, there is still no consensus on the content and number of broad personality dimensions in domestic dogs. In the current study, we compared two canine personality questionnaires: The Monash Canine Personality...

  20. Self-feeding behaviour and personality traits in tilapia: A comparative study between Oreochromis niloticus and Sarotherodon melanotheron

    Contributor(s):: Benhaïm, David, Akian, Djétouan Dieudonné, Ramos, Mathieu, Ferrari, Sébastien, Yao, Kouakou, Bégout, Marie-Laure

    Hybridization aims at combining valuable traits from two species into a single group. Nile tilapia Oreochromis niloticus (NT) and Black-chinned tilapia Sarotherodon melanotheron (BCT) are respectively characterized by fast growth and water salinity tolerance which attract the breeders who could...