student profile: Mr Cameron Negus


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Thesis work

Thesis title: Liquid and frozen storage of Asian elephant spermatozoa

Supervisors: Roslyn BATHGATE

Thesis abstract:

Modern reproductive management of captive wildlife populations involves the use of assisted reproductive technologies such as artificial insemination (AI) to produce offspring. AI is conducted to maximise genetic diversity in the captive population without the need to transport males between institutions. A prerequisite for this method of artificial breeding is the ability to collect and successfully store semen (in liquid or frozen form) from males in order to allow for the time necessary to transport semen across state and even international borders. To date there has been relatively little success in the storage of Asian elephant semen, limiting the use and benefits of AI in this species.

This project aims to develop diluents, processing, storage and collection methods for the improved survival of Asian elephant spermatozoa and subsequent use in artificial insemination programs. This project is a collaboration between the Animal Reproduction Group, Taronga Conservation Society Australia, Perth Zoo and Melbourne Zoo.

Selected publications

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Journals

  • Hall, S., Negus, C., Johinke, D., Bathgate, R. (2017). Adjusting cryodiluent composition for improved post-thaw quality of rabbit spermatozoa. PloS One, 12(4), e0175965. [More Information]

Conferences

  • Negus, C., Hobbs, R., Spindler, R., Bathgate, R. (2016). Analysis of Asian elephant (Elephas maximus) seminal plasma for the improved understanding of semen collection and preservation. 15th International Elephant & Rhino Conservation and Research Symposium, Singapore: American Association of Zoo Veterinarians.
  • Negus, C., Hobbs, R., Spindler, R., Bathgate, R. (2016). Chilled storage of Asian elephant (Elephas maximus) spermatozoa in the presence of antioxidants at different temperatures. 18th International Congress on Animal Reproduction, N/A: N/A.
  • Negus, C., Johinke, D., Bathgate, R. (2014). The investigation of an effective diluent for the cryopreservation of rabbit semen. 9th Biennial Association of Applied Animal Andrology Conference, Australia: Association for Applied Animal Andrology.

2017

  • Hall, S., Negus, C., Johinke, D., Bathgate, R. (2017). Adjusting cryodiluent composition for improved post-thaw quality of rabbit spermatozoa. PloS One, 12(4), e0175965. [More Information]

2016

  • Negus, C., Hobbs, R., Spindler, R., Bathgate, R. (2016). Analysis of Asian elephant (Elephas maximus) seminal plasma for the improved understanding of semen collection and preservation. 15th International Elephant & Rhino Conservation and Research Symposium, Singapore: American Association of Zoo Veterinarians.
  • Negus, C., Hobbs, R., Spindler, R., Bathgate, R. (2016). Chilled storage of Asian elephant (Elephas maximus) spermatozoa in the presence of antioxidants at different temperatures. 18th International Congress on Animal Reproduction, N/A: N/A.

2014

  • Negus, C., Johinke, D., Bathgate, R. (2014). The investigation of an effective diluent for the cryopreservation of rabbit semen. 9th Biennial Association of Applied Animal Andrology Conference, Australia: Association for Applied Animal Andrology.

Note: This profile is for a student at the University of Sydney. Views presented here are not necessarily those of the University.