You are here: Home / Tags / Monkeys / All Categories

Tags: Monkeys

All Categories (1-20 of 159)

  1. 'Animal Ethics Dilemma': an interactive learning tool for university and professional training

    Contributor(s):: Hanlon, A. J., Algers, A., Dich, T., Hansen, T., Loor, H., Sandoe, P.

    'Animal Ethics Dilemma' is a freely available computer-supported learning tool (www.animalethicsdilemma.net or www.aedilemma.net) which has been developed primarily for veterinary undergraduates but is applicable also to students in other fields of animal science. The objectives of the computer...

  2. A brief note on the effects of the removal of individuals on social behaviour in a captive group of campbell's monkeys ( Cercopithecus campbelli campbelli ): a case study

    Contributor(s):: Lemasson, A., Gautier, J. P., Hausberger, M.

    We investigated the social effects of the removal of two adult females, including the founder of a matriline, in a group of captive Campbell's monkeys (Cercopithecus campbelli campbelli). Their social behaviour was recorded 1 month before, 1 week after, and 7 months after the removal of the...

  3. A case study employing operant conditioning to reduce stress of capture for red-bellied tamarins ( Saguinus labiatus )

    Contributor(s):: Owen, Y., Amory, J. R.

    Traditional techniques used to capture New World monkeys, such as net capture, can induce high levels of acute stress detrimental to welfare. Alternatively, training nonhuman animals via operant conditioning to voluntarily participate in husbandry and/or veterinary practices is accepted as a...

  4. A comparison of body size, coat condition and endoparasite diversity of wild Barbary macaques exposed to different levels of tourism

    Contributor(s):: Borg, C., Majolo, B., Qarro, M., Semple, S.

    Primate tourism is a rapidly growing industry with the potential to provide considerable conservation benefits. However, assessing the impact of tourists on the animals involved is vital to ensure that the conservation value of primate tourism is maximized. In this study, we compared body size,...

  5. A comparison of cell-mediated immune responses in rhesus macaques housed singly, in pairs, or in groups

    Contributor(s):: Schapiro, S. J., Nehete, P. N., Perlman, J. E., Sastry, K. J.

    A variety of psychosocial factors have been shown to influence immunological responses in laboratory primates. The present investigation examined the effects of social housing condition on cell-mediated immune responses, comparing rhesus macaques (Macaca mulatta) in three housing conditions...

  6. A comparison of positive reinforcement training techniques in owl and squirrel monkeys: time required to train to reliability

    Contributor(s):: Rogge, J., Sherenco, K., Malling, R., Thiele, E., Lambeth, S., Schapiro, S., Williams, L.

    Positive reinforcement training (PRT) techniques enhance the psychological well being of nonhuman primates by increasing the animal's control over his or her environment and desensitizing the animal to stressful stimuli. However, the literature on PRT in neotropical primates is limited. Here PRT...

  7. A note on indoor and outdoor housing preferences of common marmosets ( Callithrix jacchus )

    Contributor(s):: Pines, M. K., Kaplan, G., Rogers, L. J.

    This study examined the preferences of six pairs of common marmosets (Callithrix jacchus) from the colony at the University of New England, Australia, between their home cage and either a large, enriched, indoor room or a smaller outdoor cage. When given free access to move between their home...

  8. A two-choice preference assessment with five cotton-top tamarins ( Saguinus oedipus )

    Contributor(s):: Fernandez, E. J., Dorey, N. R., Rosales-Ruiz, J.

    A study selected 5 cotton-top tamarins (Saguinus oedipus) located at the Frank Buck Zoo in Gainesville, Texas, for a food preference assessment. The study used a paired-choice procedure across 7 different food items for all 5 tamarins. Preferences for the food items across all the tamarins...

  9. Abnormal behaviour in captive sooty mangabeys

    Contributor(s):: Crast, J., Bloomsmith, M. A., Perlman, J. E., Meeker, T. L., Remillard, C. M.

    The influence of several factors on abnormal behaviour was investigated in 46 singly housed sooty mangabeys ( Cercocebus atys) (eight nursery-reared, 38 mother-reared), including self-injurious, self-directed, stereotypic locomotion, and faeces/urine-related behaviours (SIB, SDB, SL, FUR,...

  10. Allowing captive marmosets to choose the size and position of their nest box

    Contributor(s):: Hosey, G. R., Jacques, M., Burton, M.

    Preferences for nest box size and position were tested in two groups of common marmoset (Callithrix jacchus jacchus). One group consisted of a mother, her two adult sons and one adult daughter, and the other comprised a breeding pair, their two adult sons and two adult daughters. In a pre-test...

  11. An evaluation of the suitability of contraceptive methods in golden-headed lion tamarins ( Leontopithecus chrysomelas ), with emphasis on Melengestrol acetate (MGA) implants: (I) effectiveness, reversibility and medical side-effects

    Contributor(s):: Vleeschouwer, K. de, Leus, K., Elsacker, L. van

    Finding a responsible method of population control that does not compromise animal welfare is a pressing problem for zoological institutions and conservation breeding programmes. This is exemplified by the conservation breeding programme of the golden-headed lion tamarin. The number of...

  12. An evaluation of the suitability of contraceptive methods in golden-headed lion tamarins ( Leontopithecus chrysomelas ), with emphasis on melengestrol acetate (MGA) implants: (II) endocrinological and behavioural effects

    Contributor(s):: Vleeschouwer, K. de, Elsacker, L. van, Heistermann, M., Leus, K.

    In order to be suitable, a contraceptive method should have little or no effects on social organization or behaviour. In callitrichids, changes in socio-sexual interactions between group members, due to hormonal changes induced by contraception, may have consequences for the reproductive...

  13. An example of a monkey assistance program: P.A.S.T. - the French project of simian help to quadriplegics: a response to Lannuzzi and Rowan's (1991) paper on ethical issues in animal-assisted therapy programs

    Contributor(s):: Deputte, B. L., Busnel, M.

    All animal-assisted therapy programs raise ethical issues. These ethical issues are even more important when non-domesticated animals are used to help humans with disabilities. In their 1991 review, Iannuzzi and Rowan mentioned programs which use capuchin monkeys to help quadriplegics. The lack...

  14. Animal welfare considerations in primate rehabilitation: an assessment of three vervet monkey (Chlorocebus aethiops) releases in Kwazulu-Natal, South Africa

    Contributor(s):: Guy, A. J., Stone, O. M. L., Curnoe, D.

  15. Artificial colour treatment mediates aggression among unfamiliar vervet monkeys (Cercopithecus aethiops): a model for introducing primates with colourful sexual skin

    Contributor(s):: Gerald, M. S., Weiss, A., Ayala, J. E.

  16. Artificial weaning of Old World monkeys: benefits and costs

    Contributor(s):: Reinhardt, V.

    Permanent mother-infant separation prior to natural weaning is a common husbandry practice in monkey breeding colonies. In the United States, all eight Regional Primate Research Centres have such colonies. Under undisturbed conditions, Old World monkey mothers wean their infants at the age of...

  17. Assessment of preference for grid-flooring and sawdust-flooring by captive-bred marmosets in free-standing cages

    Contributor(s):: Hardy, A., Windle, C. P., Baker, H. F., Ridley, R. M.

    Marmosets (Callithrix jacchus) in a captive breeding colony living in metal caging, with wooden shelves and perches, were assessed by video recording for the time spent on the floor of the cage when that floor was a wire grid above a sawdust-filled tray and when it had been changed to a...

  18. Assessment of stress in non-human primates: application of the neutrophil activation test

    Contributor(s):: Honess, P. E., Marin, C., Brown, A. P., Wolfensohn, S. E.

    A technique measuring leukocyte (neutrophil) activity was used to examine differences between stress levels in a breeding colony of rhesus macaques housed in either a traditional caging system or open-rooms. The leukocyte activation test measured the degree to which blood from the two treatment...

  19. Baboons of the Amboseli basin: demographic stability and change

    Contributor(s):: Samuels, A.

  20. Behavioral differences between provisioned and non-provisioned Barbary macaques ( Macaca sylvanus )

    Contributor(s):: Unwin, T., Smith, A.

    The majority of Gibraltar's Barbary macaques (Macaca sylvanus) are provided with fruit and vegetable rations to keep them in the nature reserve and away from town. Recent fissioning of one troop has created a vagrant group that is denied access to official feeding sites by other troops, and which...