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Tags: Dominance + Behavior and behavior mechanisms

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  1. Examination of enrichment using space and food for African elephants (Loxodonta africana) at the San Diego Zoo Safari Park

    Contributor(s):: Hacker, C. E., Miller, L. J., Schulte, B. A.

  2. A bio-behavioral study of chronic idiopathic colitis in the rhesus macaque (Macaca mulatta)

    Contributor(s):: Howell, Sue, White, Daniel, Ingram, Sonya, Jackson, Raven, Larin, Jorge, Morales, Pablo, Garcia, Ana Patricia, Hicks, Chassey, Hopper, Kelly, Wagner, Joseph

    This study focused on the bio-social factors that influence chronic idiopathic colitis (CIC) disease in rhesus macaques (Macaca mulatta). A retrospective study of CIC included all colony animals between 2007 and 2009. A prospective study included 36 rhesus macaques treated for CIC in 2008 and...

  3. Helping Pet Owners Change Pet Behaviors: An Overview of the Science

    Contributor(s):: Strickler, B. G.

  4. Allogrooming in cattle: relationships between social preferences, feeding displacements and social dominance

    | Contributor(s):: Val-Laillet, D., Guesdon, V., Keyserlingk, M. A. G. von, Passille, A. M. de, Rushen, J.

    The aim of this study was to describe the allogrooming behaviour of group-housed lactating cows (Bos taurus) as it relates to social dominance, friendship, parity and level of feeding competition. We measured the socio-negative (displacements at the feeder and in the lying stalls) and...

  5. Assessment of sub-grouping behaviour in pigs housed at different group sizes

    | Contributor(s):: Turner, S. P., Horgan, G. W., Edwards, S. A.

    The group size within which a dominance hierarchy can function without modification is finite. Sub-grouping behaviour may fragment a large group into smaller units in which a dominance hierarchy may be preserved. This could be achieved by spatial localization, as indicated by the existence of...

  6. Effect of different rearing systems and pre-kindling handling on behaviour and performance of rabbit does

    Full-text: Available

    | Contributor(s):: Mugnai, C., Bosco, A. dal, Castellini, C.

    The aim of this study was to ascertain how collective cage and pre-kindling handling (training does to go into their own nest) practices, in comparison to standard housing (single cage rearing), modify the behaviour and the performance of rabbit does. To this aim, 40 nulliparous New Zealand White...

  7. Handling effects on body weight and behaviour of group-housed male rabbits in a laboratory setting

    | Contributor(s):: Verwer, C. M., Amerongen, G. van, Bos, R. van den, Hendriksen, C. F. M.

    In the study described in this paper we focus on the behaviour of male rabbits under modified housing conditions. We investigated whether handling has an effect on the behavioural stress response and whether this response is related to the coping strategy of the rabbits. Furthermore we studied...

  8. Relevance of brain and behavioural lateralization to animal welfare

    | Contributor(s):: Rogers, L. J.

    The left and right sides of the brain are specialised to process information in different ways and to control different categories of behaviour. Research on a range of species has shown that the left hemisphere controls well-established patterns of behaviour performed in non-stressful situations,...

  9. Social status and physical condition of mother and sex ratio of offspring in cervids

    | Contributor(s):: Kojola, I.

    The degree of polygyny and litter size varies between deer species and may affect the relationship between maternal condition and offspring sex ratio. The hypothesis that females in good condition produce more male offspring than females in poorer condition was investigated by analysing data from...

  10. 'Subordination style' in pigs? The response of pregnant sows to mixing stress affects their offspring's behaviour and stress reactivity

    | Contributor(s):: Ison, S. H., D'Eath, R. B., Robson, S. K., Baxter, E. M., Ormandy, E., Douglas, A. J., Russell, J. A., Lawrence, A. B., Jarvis, S.

    In various mammals stress during gestation can result in long term effects on the behaviour and physiology of the offspring. The aims of this study were (i) to characterise individual variation among primiparous sows (gilts) in their behavioural and physiological response to a commercially...

  11. Canine dominance-associated aggression: concepts, incidence, and treatment in a private behavior practice

    | Contributor(s):: Cameron, D. B.

    A review of 35 dominance-associated aggression (DA) cases presented to a small, private, behaviour-only veterinary practice revealed that attention addiction was the most commonly associated (66

  12. Effects of a running wheel-igloo enrichment on aggression, hierarchy linearity, and stereotypy in group-housed male CD-1 (ICR) mice

    | Contributor(s):: Howerton, C. L., Garner, J. P., Mench, J. A.

    Environmental enrichment is an important strategy to improve the welfare of laboratory animals. Running wheels might serve as enrichment devices for laboratory mice, since mice use them extensively when they are provided. However, competition among group-housed mice for such highly preferred...

  13. Group housing of adult silver fox (Vulpes vulpes) vixens during autumn and its consequences for body weight, injuries and later reproduction: a field study

    | Contributor(s):: Hovland, A. L., Bakken, M.

    Usually, farmed silver foxes are housed singly throughout adulthood. Due to the flexible social nature of wild foxes social grouping may act as an alternative housing procedure for adult vixens. However, sociality may involve increased levels of aggression during competition for e.g. dominance...

  14. Predictors of social dominance and aggression in gilts

    | Contributor(s):: Drickamer, L. C., Arthur, R. D., Rosenthal, T. L.

    Factors affecting social dominance and rates of aggression in gilts housed in breeding groups were examined in 16 groups of varying sizes. Each group was observed during feeding for 30-60 minutes on each of 4-6 mornings in the first 2 weeks after grouping. Two dependent variables were calculated,...

  15. Preference for the presence of substrate in male cichlid fish: effects of social dominance and context

    | Contributor(s):: Galhardo, L., Almeida, O., Oliveira, R. F.

    Many cichlid species dig spawning pits or nests in soft bottoms and exhibit many substrate oriented activities. Despite this fact being of general knowledge, captive cichlids in laboratory and aquaculture set-ups are often kept in the absence of a soft substrate that they can manipulate. This...

  16. Social hierarchy in the domestic goat: effect on food habits and production

    | Contributor(s):: Barroso, F. G., Alados, C. L., Boza, J.

    The main objective of this paper is to determine if there is a stable hierarchy of dominance in a flock of goats fed in pasture, and if this hierarchy influences somehow the diet selected in the pasture and in its production of milk and meat. The study was carried out in a flock of goats (n=90)...

  17. The effect of a fixed or free toy on the growth rate and aggressive behaviour of weaned pigs and the influence of hierarchy on initial investigation of the toys

    | Contributor(s):: Blackshaw, J. K., Thomas, F. J., Lee, J.

    Thirty two groups (12 pigs per group; 14 groups all female, 16 groups all male, 2 groups mixed) of 4- to 5-week old Large WhitexLandracexDuroc weaners were randomly assigned to 1 of 4 treatments (eight groups per treatment): (1) control group with no toys; (2) fixed toy only, hanging from the...

  18. The effects of social exchange between two groups of lactating primiparous heifers on milk production, dominance order, behavior and adrenocortical response

    | Contributor(s):: Hasegawa, N., Nishiwaki, A., Sugawara, K., Ito, I.

    The effects of social hierarchy disturbance by management practice on behaviour and performance of lactating Holstein heifers in a dairy herd in Japan were investigated from 15 October to 10 November 1990. Two groups of 51 primiparous heifers in mid-lactation were used. Almost 50% of the heifers...

  19. How does dominance rank status affect individual and social learning performance in the dog (Canis familiaris)?

    | Contributor(s):: Pongracz, P., Vida, V., Banhegyi, P., Miklosi, A.

  20. Parrot psychology and behavior problems

    | Contributor(s):: Davis, C. S.