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March 8, 2011

Makalali Elephant Contraception Research

The following is a list of publications and articles associated with the research that HSI has been involved with at the Makalali Private Game Reserve in South Africa. Some of the citations include a link either to the full text article or to the website where one can view the abstract with an option to purchase the article.

2013

Delsink, A., Kirkpatrick, J., van Altena, J., Bertschinger, H. Ferreira, S., Slotow, R. (2013) Lack of Spatial and Behavioral Responses to Immunocontraception Application in African Elephants (Loxodonta Africana) Journal of Zoo and Wildlife Medicine 44(4S): S52–S74, 2013.

Bertschinger, H., A. Delsink, J. Kirkpatrick, J. van Altena, M. Ahlers, T. Dickerson, D. Powrie, and A. Burger. Porcine Zona Pellucida Immunocontraception of African elephants (Loxodonta africana): Beyond the experimental stage. (2013) In: IVth International Wildlife Management Congress - Cooperative Wildlife Management Across Borders: Learning in the Face of Change. J. Cain(III) and J. Marshal, (eds.). The Wildlife Society, 9 - 12 July 2012. 95-102.

2012

Ahlers, M., B. Ganswindt, S. Münschera, and H. Bertschinger. (2012) Fecal 20-oxo-pregnane concentrations in free-ranging African elephants (Loxodonta africana) treated with porcine zona pellucida vaccine. Theriogenology 78: 77–85.

Benavides Valades, G., A. Ganswindt, H. Annandale, M.L. Schulman, and H.J. Bertschinger. (2012) Non-invasive assessment of the reproductive cycle in free-ranging female African elephants (Loxodonta africana) treated with a gonadotropin-releasing hormone (GnRH) vaccine for inducing anoestrus. Reprod Biol Endocrinol 10: 63.

Delsink, A., Kirkpatrick, J. (2012) Free-ranging African Elephant Immunocontraception: A New Paradigm for Elephant Management, p. 28. Humane Society International, Cape Town.

Delsink, A., Kirkpatrick, J., van Altena, J., Bertschinger, H., Ferreira, S., Slotow, R. In press. Lack of spatial and behavioural responses to immunocontraception application in African Elephants (Loxodonta africana). Journal of Zoo and Wildlife Medicine.

Kirkpatrick, J., Delsink, A., van Altena, J., Bertschinger, H. (2012) Fertility control and African elephants: a new paradigm for Management, In Elephants: Ecology, Behavior and Conservation. eds M. Aranovich, O. Dufresne, pp. 77-96. NOVA Publishing, Hauppauge, NY.

2011 

Bertschinger, HJ. (2011) Immunocontraception of free-ranging African elephant (Loxodonta africana) cows on game reserves in South Africa. University of Pretoria, Research Committee Protocol. Previous No 36.5.251.

Bertschinger, HJ. & AK. Delsink, et al. 20XX. Effects of porcine zona pellucida immunocontraception on annual calving percentages of ten discrete free-raging African elephant populations on private game reserves in South Africa. In preparation.

Kirkpatrick, JF, Lyda, RO, Frank, KM. 2011. Contraceptive vaccines for wildlife: A review. Amer. J. Reprod. Immunol. (In press)

Kirkpatrick, JF, Delsink AK, Van Altena JJ, Bertschiunger HJ. 20XX. Fertility control and African elephants: a new paradigm for Management. In: Elephants: Ecology, Behavior and Conservation. NOVA Publishing, Hauppauge, NY. (Accepted for publication 3/11).

Kirkpatrick JF. 2011. Fertility control: A new and successful paradigm for African elephant population management. Veterinary Sciences Tomorrow, 27 January. Pp. 1-3.

2010 

Bertschinger, HJ, PhD (Utrecht). 2010. Controlling wildlife reproduction: Reversible suppression of reproductive function or sex-related behaviour in wildlife species. Chapter 6: Bertschinger et al., Immunocontrol of reproductive rate of African elephant cows using porcine zona pellucida vaccine on seven private game reserves in South Africa. Full article [PDF]

Bertschinger, HJ, A Delsink, JF Kirkpatrick, JJ Van Altena, H Denys, M Bates, T Burke, D Powrie. 2010. Immunocontrol of reproductive rate of African elephant cows using porcine zona pellucida vaccine on four private game reserves in South Africa. Proceedings of the International Elephant Conservation and Research Symposium, Kwalata 26-29 January: 9

Bertschinger, HJ, A Delsink, JF Kirkpatrick, JJ Van Altena, M Bates, T Bickerson, D Powrie. 2010. Immunocontrol of reproductive rate in African elephants with porcine zona pellucida vaccine. Proceedings of Compassionate Conservation Animal Welfare in Conservation Practice, Oxford, 1-3 September 2010: 30.

Bertschinger, HJ. 2010. Immunocontrol of reproductive rate in African elephant cows. African Animal Action Conference 2010, Nairobi, 6-8 September 2010: 23.

2009 

Bertschinger, HJ, A Delsink, JF Kirkpatrick, JJ Van Altena, H Denys, M Bates, T Burke, D Powrie. 2009. Immunocontrol of reproductive rate and aggression in African elephants. British Veterinary Zoological Society, York 7-8 November 2009: 71

Mackey, RL, B.R. Page, D. Grobler and R. Slotow. 2009. Modeling the effectiveness of contraception for controlling introduced populations of elephant in South Africa. African Journal of Ecology 47:747-755. Abstract only, $ for full article

2007 

Bertschinger HJ, Delsink A. 2007. Reproductive control of elephants. In: Assessment of South African Elephant Management. Scholes B,Mennell K (eds). Wits University Press, Johannesburg, RSA, Pp. 257-327. Full article [PDF]

Bertschinger HJ, A Delsink, JJ Van Altena, D Grobler, A Ganswindt, JF Kirkpatrick, MA De Barros Vaz Guimraes, TE Trigg. 2007. Control of reproduction in African elephants, lions and cheetahs. 18th Symposium on Tropical Animal Health and Production: Reproductive biotechnology for conservation. Utrecht, The Netherlands, 26 October: 33-39

Bertschinger HJ, A Delsink, JJ Van Altena, D Grobler, JF Kirkpatrick, M Bates, T Burke. 2007. Effects of porcine zona pellucida immunocontraception on annual calving percentages of six discrete African Elephant populations. 6th International Conference on Fertility Control for Wildlife. York, UK, 3-5 September: 48 

Colenbrander, B., H. J. Bertschinger and T. A. E. Stout. Immunocontraception of Elephants Using Porcine Zona Pellucida Vaccination. EU-Asia Link Project Symposium “Managing the Health and Reproduction of Elephant Populations in Asia” 8-10 October 2007 Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand. Pages 117-119. Full article [PDF]

Delsink, A., JF Kirkpatrick, JJ Van Altena, D Grobler, HJ Bertschinger, R Slotow. 2007. Lack of social and behavioural consequences of immunocontraception in African elephants. 6th International Conference on Fertility Control for Wildlife. York, UK, 3-5 September: 31

Delsink, AK., JJ. van Altena, D. Grobler, HJ. Bertschinger, JF. Kirkpatrick, R. Slotow. 2007. Implementing immunocontraception in free-ranging African elephants at Makalali Conservancy. Journal of the South African Veterinary Association 78(1): 25–30. Full article [PDF]

Turner JW, AT Rutberg, RE Naugle, MA Kaur, DR Flanagan, HJ Bertschinger & IKM Liu. 2007. Controlled-release components of PZP contraceptive vaccine extend duration of infertility. 6th International Conference on Fertility Control for Wildlife. York, UK, 3-5 September: 7-8. Abstract only, $ for full article

2006 

Delsink, AK., JJ. Van Altena, D. Grobler, HJ. Bertschinger , JF. Kirkpatrick & R. Slotow. 2006. Regulation of a small, discrete African elephant population through immunocontraception in the Makalali Conservancy, Limpopo, South Africa. South African Journal of Science 102:403-405. Abstract only, $ for full article

2004 

Bertschinger HJ, JF Kirkpatrick, RA Fayrer-Hosken, D Grobler, JJ Van Altena. 2004. Immunocontraception of African elephants using porcine zona pellucida vaccine. Proceedings of an expert consultation on the Control of Wild Elephant Populations, Editors: B Colenbrander, J de Gooijer, R Paling, S Stout, T Stout, T Allen, Utrecht University: 45-47

Delsink, AK. et al. 2004. Population regulation of African Elephants through immunocontraception. In: EMOA Proceedings of the Elephant Symposium. Pilansberg National Park.

Delsink, AK., HJ. Bertschinger, JF. Kirkpatrick, D. Grobler, JJ. van Altena & R. Slotow. 2004. The preliminary behavioural and population dynamic response of African elephants to immunocontraception. In: proceedings of the 15th Symposium on Tropical Animal health and Reproduction: management of Elephant reproduction. Faculty of Veterinary Medicine, University of Utrecht, the Netherlands.

2003 

Delsink, AK., HJ. Bertschinger, JF. Kirkpatrick, H. De Nys, D. Grobler, JJ. van Altena & J. Turkstra. 2003. Contraception of African elephant cows in two private conservancies using porcine zona pellucida vaccine, and the control of aggressive behaviour in elephant bulls with a GnRH vaccine. In: Proceedings on the Control of Wild Elephant Populations. Faculty of Veterinary Medicine, University of Utrecht, the Netherlands.

2002 

Delsink, AK., JJ. van Altena, JF. Kirkpatrick, D. Grobler and R. Fayrer-Hosken. 2002. Field applications of immunocontraception in African Elephants (Loxodonta africana). Reproduction 60: 117-124. Abstract only

Delsink, AK. 2002. The Makalali Immunocontraception Program. In: The proceedings of the EMOA Workshop, Knysna. Vaalwater, Pta.

2001 

Fayrer-Hosken, RA., D. Grobler, JJ. Van Altena, HJ. Bertschinger & JF. Kirkpatrick. 2001. Contraception of African elephants. Nature 411: 766. Full article [PDF]

2000 and earlier 

Fayrer-Hosken, RA., D. Grobler, JJ. Van Altena, HJ. Bertschinger & JF. Kirkpatrick. 2000. Immunocontraception of African elephants. Nature 407: 149. Full article [PDF]

Bertschinger HJ, JF Kirkpatrick, RA Fayrer-Hosken. 1999. Immunocontraception using porcine zona pellucida vaccine in the African elephant. Andrology in the Nineties: Proceedings of the South African Society for Reproductive Medicine and Surgery. 25-27 March, Cape Town: AL-45

Fayrer-Hosken, RA., HJ. Bertschinger, JF. Kirkpatrick, D. Grobler,N. Lamberski, G. Honeymann & T. Ulrich. 1999. Contraceptive potential of the porcine zona pellucid vaccine in the African elephant (Loxodonta africana). Theriogenology 52: 835-846. Abstract only, $ for full article

Fayrer-Hosken RA, HJ Bertschinger, JF Kirkpatrick, JW Turner & IK Liu. 1997. Management of African elephant populations by immunocontraception. Wildlife Society Bulletin 25: 18-21. $ for full article

Fayrer-Hosken RA, P Brooks, JF Kirkpatrick, HJ Bertschinger, J Raath, J Soley. 1997. Potential of the porcine zona pellucida (PZP) being an immunocontraceptive agent for elephants. Theriogenology 47: 397.  $ for full article

Bertschinger HJ, R Fayrer-Hosken, JF Kirkpatrick, JT Soley, W Steffens and M Ard. 1996. Immunocytochemistry of the elephant zona pellucida using anti-pZP antibodies. Proceedings of the 13th International Congress on Animal Reproduction, Sydney, 30 June-4 July, p9-5

Bertschinger HJ, R Fayrer-Hosken, JF Kirkpatrick, JT Soley, W Steffens and M Ard. (1996). Immunocytochemistry of the elephant zona pellucida using anti-pZP antibodies. Proceedings of the 4th International Conference on Fertility Control for Wildlife Management, Great Keppel Island, 8-11 July :p 27

Kirkpatrick, JF., JW. Turner Jr., IK. Liu, R. Fayrer-Hosken. 1996. Applications of pig zona pellucida immunocontraception to wildlife fertility control. Journal of Reproduction and Fertility Supplement 50: 183-189. Abstract only