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  1. Effects of composition and density of the group on the performance, behaviour and age at puberty in swine

    Contributor(s):: Clark, J. R., Bell, R. W., Tribble, L. F., Lennon, A. M.

    218 crossbred pigs (Duroc-Hampshire-Landrace-Yorkshire) were assigned to a 2 x 3 factorial experiment, the factors being group composition and density. The group-composition factor consisted of pigs not re-aggregated (group 1), re-aggregated below the median body weight (group 2), and...

  2. Effects of rearing conditions on sexual performance in the ram: practical use

    Contributor(s):: Casteilla, L., Orgeur, P., Signoret, J. P.

    The effects of heterosexual contact during development on early semen production in young rams and on mating capacity in yearlings was examined in 2 experiments. In the 1st experiment, 172 [male] Lacaune lambs were reared in unisexual groups or kept permanently or temporarily with...

  3. Effects of social environment on welfare status and sexual behaviour of female pigs. I. Effects of group size

    Contributor(s):: Barnett, J. L., Hemsworth, P. H., Winfield, C. G., Hansen, C.

    The study examined the effects of housing 24 adult female pigs in groups of 2, 4 or 8 with a space allowance of 1.4msuperscript 2 per pig on welfare status, as indicated by plasma free-corticosteroid concentrations and behaviour patterns, and sexual behaviour. Housing gilts in pairs resulted in...

  4. Effects of the peri-pubertal rearing environment on endocrine and behavioural responses to oestrous female exposure in the mature bull

    Contributor(s):: Borg, K. E., Esbenshade, K. L., Johnson, B. H.

    30 American Angus bulls, aged 10-11 months, were reared on (1) pasture without contact with [female][female] (controls), (2) pasture with [female] contact for 2 h at 28-day intervals ([female]-exposed group), or (3) penned individually to restrict direct physical contact with other animals. After...

  5. Olfactory and vomeronasal chemoreception and the discrimination of oestrous and non-oestrous ewe urine odours by the ram

    Contributor(s):: Blissitt, M. J., Bland, K. P., Cottrell, D. F.

    Evidence was obtained that odour access to the vomeronasal organs is not necessary for adult rams to discriminate between oestrous and non-oestrous ewe urine odours. The chemoreceptors mediating this discrimination are located intranasally, probably in the main olfactory epithelium. Zinc sulphate...

  6. Social preferences of domestic ewes for rams ( Ovis aries )

    Contributor(s):: Estep, D. Q., Price, E. O., Wallach, S. J. R., Dally, M. R.

    Four experiments were performed to investigate the social preferences of 16 ewes for potential mating partners. Ewe preferences were assessed by measuring the time spent in proximity to each of 2 restrained rams and/or 1 or 2 restrained ewes in 5- or 20-min tests. In the 1st experiment, oestrous...

  7. The significance of horns and other male secondary sexual characters in female bovids

    Contributor(s):: Estes, R. D.

    A hypothesis is presented which states that [female][female] mimic [male] secondary sexual characters (e.g. through the evolution of horns) to buffer their [male] offspring against the aggression of dominant [male][male], thereby prolonging the presence of their sons in the natal herd and home...

  8. An examination of changes in oxytocin levels in men and women before and after interaction with a bonded dog

    Contributor(s):: Miller, S. C., Kennedy, C., DeVoe, D., Hickey, M., Nelson, T., Kogan, L.

    Oxytocin (OT) is a neuropeptide increasingly recognized for its role in bonding, socialization, and stress relief. Previous research has demonstrated participants' OT levels increased after interacting with or petting a dog, suggesting OT is at least partially responsible for the calm, relaxing...

  9. Attitudes and actions of West Indian dog owners towards neutering their animals: a gender issue?

    Contributor(s):: Fielding, W. J., Samuels, D., Mather, J.

    A study of the attitudes and actions of 281 dog owners towards neutering their animals is reported from New Providence, The Bahamas, based on a study conducted in 2001. Owner attitudes towards neutering are associated with different sterilization rates of dogs. While owners' gender is associated...

  10. Attitudes of Romanian pet caretakers towards sterilization of their animals: gender conflict over male, but not female, companion animals

    Contributor(s):: Cocia, R. I., Rusu, A. S.

    Sterilization of companion animals is in most cases an expression of the caretaker's will. However, little is known about caretakers' attitudes toward pet sterilization in general - these can influence their decision to sterilize their own animals. Three hundred and twelve Romanian caretakers of...

  11. Attitudes towards dogs: a study of university students in Japan and the UK

    Contributor(s):: Miura, A., Bradshaw, J. W. S., Tanida, H.

    The attitudes of 229 (142 females, 87 males) Japanese and 212 (131 females, 81 males) British students towards dogs were measured using a questionnaire comprising 46, seven-point Likert scale items, taking the cultures of both Japan and the UK into consideration. Their responses were separately...

  12. Case studies of adults receiving horse-riding therapy

    Contributor(s):: Burgon, H.

    The purpose of this study was to examine the psychotherapeutic effect of riding therapy (RT) on a group of adult users of a social services mental health team in South Devon. The benefits of animal-assisted therapy (AAT) and pet ownership on human health and well-being were well-documented....

  13. Dog-resident interactions in a Japanese retirement home

    Contributor(s):: Koda, N., Yanai, J.

    We observed a dog visitation program in a geriatric retirement home in Japan, to obtain quantitative data on the human-dog interactions. Seven volunteer handlers and seven adult pet dogs were divided into two groups. Each group visited the home on one of two activity days each month for 18...

  14. Domestic dogs as facilitators in social interaction: an evaluation of helping and courtship behaviors

    Contributor(s):: Gueguen, N., Ciccotti, S.

    Previous studies have suggested that dogs facilitate social interaction between humans. Furthermore, the nature of social interaction is limited to nonverbal behaviour such as smiling or gazing or to commonplace conversations. Four studies were carried out in field settings in order to explore if...

  15. Effects of a pet visitation program on the behavior and emotional state of adjudicated female adolescents

    Contributor(s):: Conniff, K. M., Scarlett, J. M., Goodman, S., Appel, L. D.

    This study was designed to assess the impact of an ongoing pet visitation program on the behavior and emotional state of adjudicated female adolescents at a medium secure residential facility over an eight-week period. To our knowledge, this study is the first randomized trial with a...

  16. Experiences, characteristics and treatment of women suffering from dog phobia

    Contributor(s):: Hoffmann, W. A., Human, L. H.

    Dog phobia is a complex psychological phenomenon classified under the anxiety disorders. This study describes the experiences, characteristics and treatment of females suffering from dog phobia. 12 female students suffering from dog phobia participated in this qualitative study which included an...

  17. Fear of dogs in a community sample: effects of age, gender and prior experience of canine aggression

    Contributor(s):: Boyd, C. M., Fotheringham, B., Litchfield, C., McBryde, I., Metzer, J. C., Scanlon, P., Somers, R., Winefield, A. H.

    An investigation was conducted into human fear of dogs and experiences of canine aggression in an adult community sample (n=292). Consistent with expectations, it was found that, while fear of dogs was relatively common (present in almost half the respondents), fear of dog attacks was less so,...

  18. Homeless women's voices on incorporating companion animals into shelter services

    Contributor(s):: Labrecque, J., Walsh, C. A.

    The literature examining the relationship between homeless individuals and companion animals is scarce. To date there are only five published studies, none of which explore this issue within a Canadian context or from the perspectives of women living in homeless shelters. The benefits of...

  19. Perception of a common fate in human-animal relations and its relevance to our concern for animals

    Contributor(s):: Pagani, C.

    Considering violence against animals and violence against people as one and the same problem presupposes a comprehensive concept of violence, a concept of suffering uniting humans and animals, and a specific relationship to nature and life. The thesis of this paper is that the greater concern for...

  20. Pets, networks and well-being

    Contributor(s):: Hecht, L., McMillin, J. D., Silverman, P.

    This study explores two explanations for well-being among older adults: social network analysis and human-animal relations. The data are based on a stratified probability sample of community living adults, aged 60 years and over, located in several rural communities in north-eastern Oregon. The...