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  1. Preference Ranking Procedure: Method Validation with Dogs

    Full-text: Available

    | Contributor(s):: Han Li, Rachel Wyant, Greg Aldrich, Kadri Koppel

    The growth of the number of pet products and the pet food industry is continuous. This is partially driven by palatability and perceptions of preference. A preference ranking procedure for dogs has been proposed in order to suggest a more efficient method to study the palatability of food...

  2. Is individual temperament related to behaviors in a social context for a Neotropical parakeet species?

    | Contributor(s):: Ramos, Gabriela de Araújo Porto, de Azevedo, Cristiano Schetini, Lovestain, Dhiordan Deon Costa, Jardim, Talys Henrique Assumpção, Sant’Anna, Aline Cristina

  3. Examining the Impact of Naturalistic and Unnaturalistic Environmental Enrichment on Visitor Perception of Naturalness, Animal Welfare, and Conservation

    | Contributor(s):: Razal, Catherine B., Miller, Lance J.

    Recent research shows that using different types of enrichment has little to no impact on how zoo visitors perceive the animals or the enclosure in general. The primary objective of the current research was to examine if viewing naturalistic-looking environmental enrichment (NEE) and...

  4. Investigation of distances covered by fattening pigs measured with VideoMotionTracker®

    | Contributor(s):: Brendle, Julia, Hoy, Steffen

    The investigation was carried out with altogether 144 pigs kept in groups of 6 or 12. Every pen was equipped with perforated floor. Water and the in-house compound feed with different elements depending on the fattening period were available ad libitum during the whole fattening period. At the...

  5. Influence of origin litter on social rank, agonistic behaviour and growth performance of piglets after weaning

    | Contributor(s):: Fels, Michaela, Hoy, Steffen, Hartung, Jörg

    In pig production, mixing of piglets after weaning is a common management practice often leading to severe fighting aimed at establishing a social hierarchy. The intention of our study was to investigate whether social rank of piglets obtained by fighting within 3 days after weaning and mixing...

  6. Does learning performance in horses relate to fearfulness, baseline stress hormone, and social rank?

    | Contributor(s):: Christensen, Janne Winther, Ahrendt, Line Peerstrup, Lintrup, Randi, Gaillard, Charlotte, Palme, Rupert, Malmkvist, Jens

    The ability of horses to learn and remember new tasks is fundamentally important for their use by humans. Fearfulness may, however, interfere with learning, because stimuli in the environment can overshadow signals from the rider or handler. In addition, prolonged high levels of stress hormones...

  7. Sham dustbathing in cages by subordinate hens is increased by a partition providing isolation

    | Contributor(s):: Moroki, Yuko

    Subordinate hens express less sham dustbathing in cages than higher ranked hens, their bouts often being disturbed by a higher ranked hen. However, seeing conspecifics seems to encourage this behaviour by hens. So to avoid being disturbed, a partition between hens in a cage may facilitate sham...

  8. A novel method for the analysis of social structure allows in-depth analysis of sow rank in newly grouped sows

    | Contributor(s):: Greenwood, E. C., Plush, K. J., van Wettere, W. H. E. J., Hughes, P. E.

    Chronic stress response in fearful animals can result in depression of growth and reproductive performance. It is therefore important to be aware of at risk animals in the herd. Thus far ‘hierarchy’ calculations have involved the use of fights won and lost on the day of mixing or successful...

  9. Training success in group-housed long-tailed macaques (Macaca fascicularis) is better explained by personality than by social rank

    | Contributor(s):: Wergård, Eva-Marie, Westlund, Karolina, Spångberg, Mats, Fredlund, Helene, Forkman, Björn

    Using training to prepare laboratory animals for biomedical research is one important behavior management task. With increased knowledge about factors influencing training success, training programs may be optimized, resulting in a refinement of primate husbandry. Even when animals are trained...

  10. Less water renewal reduces effects on social aggression of the cichlid Pterophyllum scalare

    | Contributor(s):: Gauy, Ana Carolina dos Santos, Boscolo, Camila Nomura Pereira, Gonçalves-de-Freitas, Eliane

    Changes in aquatic environments can affect fish behavior. Water renewal, for example, can dilute chemical signals, which are a social communication tool used by some fish species, and this dilution increases aggressive interactions in the group. Fierce and prolonged fights can affect fish welfare...

  11. Ranking genetically modified plants according to familiarity. (Special issue: Food safety, food quality and food ethics. Selected papers from the 3rd Congress of the European Society for Agricultural and Food Ethics)

    | Contributor(s):: Madsen, K. H., Holm, P. B., Lassen, J., Sandoe, P.

    In public debate, genetically modified plants (GMPs) are often referred to as being unnatural or a violation of nature. Some people have serious moral concerns about departures from what is natural. Others are concerned about potential risks to the environment arising from the combination of...

  12. Possible factors influencing vertebrate sex ratios: an introductory overview

    | Contributor(s):: Hardy, I. C. W.

    This review considers factors that may influence sex ratio in mammals and birds: firstly, Fisher's theory of equal investment and subsequent theories (i.e. the adaptive value of the control of offspring sex ratio to parents); and secondly, sex determination mechanisms and constraints to sex...

  13. Trading "ethical preferences" in the market: outline of a politically liberal framework for the ethical characterization of foods

    | Contributor(s):: Michalopoulos, T., Korthals, M., Hogeveen, H.

    The absence of appropriate information about imperceptible and ethical food characteristics limits the opportunities for concerned consumer/citizens to take ethical issues into account during their inescapable food consumption. It also fuels trust crises between producers and consumers, hinders...

  14. Agonistic behavior and social organization in a herd of goats as affected by the introduction of non-members

    | Contributor(s):: Addison, W. E., Baker, E.

    The purpose of the project was (1) to identify the pattern of social organization in a herd of goats, and (2) to study the effects of introducing two "non-members" (one male and one female) into an established group. A nearly perfect linear hierarchy was found in the original group. As expected,...

  15. Behaviour patterns of horses grazing in paddocks

    | Contributor(s):: Francis-Smith, K.

  16. Competitive order as a measure of social dominance in dairy cattle

    | Contributor(s):: Friend, T. H., Polan, C. E.

  17. Competitive order as a measure of social dominance in dairy cattle: a criticism of the paper by Friend and Polan [Applied animal Ethology 4, 61-70]

    | Contributor(s):: Beilharz, R. G.

  18. Dominance hierarchies in domestic horses

    | Contributor(s):: Houpt, K. A., Law, K., Martinisi, V.

  19. Dominance hierarchies of cows on alpine pastures as related to phenotype

    | Contributor(s):: Oberosler, R., Carenzi, C., Verga, M.

  20. Effect of early androgen treatment on subsequent social behaviour in heifers

    | Contributor(s):: Bouissou, M. F.