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Author Powell, D.M. doi  openurl
  Title Preliminary evaluation of porcine zona pellucida (PZP) immunocontraception for behavioral effects in feral horses (Equus caballus) Type Journal Article
  Year 1999 Publication Journal of Applied Animal Welfare Science : JAAWS Abbreviated Journal J Appl Anim Welf Sci  
  Volume 2 Issue 4 Pages 321-335  
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  Abstract Successful management of captive populations of wild animals requires effective control of reproduction. Contraception is one tool for controlling reproduction of animals in zoos; however, the options available to the animal manager are limited. Contraceptives vary in efficacy, reversibility, and side effects, and thus may not be suitable for widespread use. One consideration when selecting a contraceptive is its potential for side effects on behavior, especially given the fact that reproduction plays such a prominent role in the biology of any species. To date, there have been few evaluations of contraceptives for behavioral effects, and those that have been conducted have focused on hormone-based contraceptives. This study sought to evaluate a novel method of population control, immunocontraception, for behavioral effects in a population of feral horses. Porcine zona pellucida (PZP) immunocontraception prevents fertilization of ova and does not alter normal hormone secretion patterns. It therefore should leave the animal behaviorally intact in terms of reproductive behavior. The study examined the behavior of 43 sexually mature mares on Assateague Island during the 1997 breeding season and, with help from Earthwatch volunteers, collected observations over a 3-month period. The study found no significant differences between treated and untreated mares in general activity budget, aggression given or received, and spatial relationships relative to the stallion. These preliminary findings indicate that PZP contraception seems to have no acute behavioral effects on the behavior of individuals. The study findings also suggest that PZP could be a desirable and effective management tool for captive species in which social behavior plays an integral role in group dynamics. Analyses of group level effects and population level effects are continuing.  
  Address Department of Zoological Research, National Zoological Park, Washington, DC 20008, USA. dpowell@nzp.si.edu  
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  ISSN 1088-8705 ISBN Medium  
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  Notes PMID:16363936 Approved no  
  Call Number Serial 1883  
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Author McBride, S.D.; Cuddeford, D. url  openurl
  Title The Putative Welfare-Reducing Effects of Preventing Equine Stereotypic Behaviour Type Journal Article
  Year 2001 Publication Animal Welfare Abbreviated Journal  
  Volume 10 Issue Pages 173-189  
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  Call Number refbase @ user @ Serial 2012  
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Author Bekoff, M. url  openurl
  Title Cognitive Ethology and the Treatment of Non-Human Animals: How Mati'ers of Mind Inform Mati'ers of Welfare Type Journal Article
  Year 1994 Publication Animal Welfare Abbreviated Journal  
  Volume 3 Issue Pages 75-96  
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  Call Number refbase @ user @ Serial 3457  
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Author Kirkwood, J.K.; Hubrecht, R. url  openurl
  Title Animal Consciousness, Cognition and Welfare Type Journal Article
  Year 2001 Publication Animal Welfare Abbreviated Journal  
  Volume 10 Issue Pages 5-17  
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  Call Number refbase @ user @ Serial 3488  
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Author Dawkins, M.S. url  openurl
  Title Who Needs Consciousness? Type Journal Article
  Year 2001 Publication Animal Welfare Abbreviated Journal  
  Volume 10 Issue Pages 19-29  
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  Call Number refbase @ user @ Serial 3489  
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Author Taylor, J.G. url  openurl
  Title What do Neuronal Network Models of the Mind Indicate about Animal Consciousness? Type Journal Article
  Year 2001 Publication Animal Welfare Abbreviated Journal  
  Volume 10 Issue Pages 63-75  
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  Call Number refbase @ user @ Serial 3490  
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Author Wemelsfelder, F. url  openurl
  Title The Inside and Outside Aspects of Consciousness: Complementary Approaches to the Study of Animal Emotion Type Journal Article
  Year 2001 Publication Animal Welfare Abbreviated Journal  
  Volume 10 Issue Pages 129-139  
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  Call Number refbase @ user @ Serial 3492  
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Author Lea, S.E.G. url  openurl
  Title Anticipation and Memory as Criteria for Special Welfare Consideration Type Journal Article
  Year 2001 Publication Animal Welfare Abbreviated Journal  
  Volume 10 Issue Pages 195-208  
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  Call Number refbase @ user @ Serial 3493  
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Author Held, S.; Mendl, M.; Devereux, C.; Byrne, R.W. url  openurl
  Title Studies in Social Cognition: From Primates to Pigs Type Journal Article
  Year 2001 Publication Animal Welfare Abbreviated Journal  
  Volume 10 Issue Pages 209-217  
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  Call Number refbase @ user @ Serial 3494  
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Author Mendl, M.; Paul, E.S. url  openurl
  Title Consciousness, emotion and animal welfare: insights from cognitive science Type Journal Article
  Year 2004 Publication Animal Welfare Abbreviated Journal  
  Volume 13 Issue Pages 17-25  
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  Call Number refbase @ user @ Serial 3512  
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