Walzer, C.

Moodley, Y.; Russo, I-R.M.; Robovsky, J.; Dalton, D.L.; Kotze, A.; Smith, S.; Stejskal, J.; Ryder, O.A.; Hermes, R.; Walzer, C.; Bruford, M.W. 2018. Contrasting evolutionary history, anthropogenic declines and genetic contact in the northern and southern white rhinoceros (Ceratotherium simum). Proceedings B of the Royal Society of London 285: 1-9.

Haymerle, A.; Knauer, F.; Walzer, C. 2016. Two methods to adapt the human haemoglobin–oxygen dissociation algorithm to the blood of white rhinoceros (Ceratotherium simum) and to determine the accuracy of pulse oximetry. Veterinary Anaesthesia and Analgesia 43: 566–570. doi.org/10.1111/vaa.12334

Goeritz, F.; Hermes, R.; Walzer, C.; Payne, J.; Hildebrandt, T.B.; Zainuddin, Z.Z. 2016. Etorphine free anesthesia protocols optimized for frequent reproductive interventions ranging from semen collection, artificial insemination to Ovum-Pick-Up (OPU) in four rhino species (abstract). In: Scientific program of the 15th International Elephant & Rhino conservation and research symposium, Singapore, November 14-18, 2016. pp. 50-51.

Schwarzenberger, F.; Walzer, C.; Versteege, L.; Goeritz, F.; Hildebrandt, T.B.; Hermes, R. 2012. Reproductive steroid monitoring in white rhinoceroses kept in European zoos. Wiener Tierärztliche Monatsschrift 99 (Supplement 1): 36-37.

Hermes, R.; Hildebrandt, T.B.; Walzer, C.; Goeritz, F.; Gray, C.; Niemuller, C.; Schwarzenberger, F. 2012. Estrus induction in white rhinoceros (Ceratotherium simum). Theriogenology 78 (6): 1217-1223.

Pfistermuller, R.; Walzer, C.; Licka, T. 2011. From Chitwan to Vienna – How do gait parameters change in a pair of Indian Rhinos (Rhinoceros unicornis) coming from semi-wild conditions to a European Zoo?. Proceedings of the 2011 International Elephant and Rhino Conservation and Research Symposium, Rotterdam 10-14 October 2011: 766-805.

Schwarzenberger, F.; Walzer, C.; Versteege, L.; Goeritz, F.; Hildebrandt, T.B.; Hermes, R. 2011. Results from two decades of reproductive steroid monitoring in white rhinoceroses kept in European zoos. Proceedings of the 2011 International Elephant and Rhino Conservation and Research Symposium, Rotterdam 10-14 October 2011: 892-927.

Hermes, R.; Hildebrandt, T.B.; Goeritz, F.; Walzer, C.; Schwarzenberger, F. 2011. Oestrous synchronization in white rhinoceros. Program (abstracts) of the 2011 International Elephant and Rhino Conservation and Research Symposium, Rotterdam 10-14 October 2011: 43.

Pfistermuller, R.; Walzer, C.; Licka, T. 2011. First evidence of the use of kinetic gait analysis as a clinical tool for early detection of chronic foot disease in an Indian rhino (Rhinoceros unicornis). Proceedings of the 2011 International Elephant and Rhino Conservation and Research Symposium, Rotterdam 10-14 October 2011: 806-813.

Walzer, C.; Goeritz, F.; Hermes, R.; Nathan, S.; Kretzschmar, P.; Thayaparan, S. 2010. Immobilization and intravenous anesthesia in a Sumatran rhinoceros (Dicerorhinus sumatrensis). Journal of Zoo and Wildlife Medicine 41 (1): 115-120.

Hermes, R.; Goeritz, F.; Portas, T.J.; Bryant, B.R.; Kelly, J.M.; Maclellan, L.J.; Keeley, T.; Schwarzenberger, F.; Walzer, C.; Schnorrenberg, A.; Spindler, R.E., Saragusty, J., Kaandorp, S., Hildebrandt, T.B. 2009. Ovarian superstimulation, transrectal ultrasound-guided oocyte recovery, and IVF in rhinoceros. Theriogenology 72 (7): 958-968.

Reid, C.E.; Hermes, R.; Blottner, S.; Goeritz, F.; Wibbelt, G.; Walzer, C.; Bryant, B.R.; Portas, T.J.; Streich, W.J.; Hildebrandt, T.B. 2009. Split-sample comparison of directional and liquid nitrogen vapour freezing method on post-thaw semen quality in white rhinoceroses (Ceratotherium simum simum and Ceratotherium simum cottoni). Theriogenology 71 (2): 275-291.

Walzer, C. 2008. Diseases of Rhinocerotidae (rhinoceroses). Proceedings of conference on diseases of exotic and zoo animals, Budapest March 14-16, 2008: 12-13.

Walzer, C.; Goeritz, F.; Hermes, R.; Nathan, S.; Kretzschmar, P.; Thayaparan, S. 2008. Beitrag zur Narkose des Sumatra-Nashorns (Dicerorhinus sumatrensis). Tagungsbericht 26. Arbeitstagung der Zootierärzte im deutschsprachigen Raum 2008: 22-25.

Hildebrandt, T.B.; Hermes, R.; Walzer, C.; Sos, E.; Molnar, V.; Mezosi, L.; Schnorrenberg, A.; Silinski, S.; Streich, J.; Schwarzenberger, F.; Goeritz, F. 2007. Artificial insemination in the anoestrous and the postpartum white rhinoceros using GnRH analogue to induce ovulation. Theriogenology 67: 1473-1484, figs. 1-4, tabs. 1-2. doi.org/10.1016/j.theriogenology.2007.03.005

Hermes, R.; Goeritz, F.; Walzer, C.; Blottner, S.; Silinski, S.; Schwarzenberger, F.; Joechle, W.; Cordes, M.; Hildebrandt, T.B. 2007. Improvement of male fertility by long-term beta-carotene supplementation in white rhinoceroses (Ceratotherium simum). Proceedings of the Conference of the Nutrition Advisory Group (NAG) of the American Zoo and Aquarium Association (AZA) no.7: 37.

Reid, P.C.; Hermes, R.; Hildebrandt, T.B.; Goeritz, F.; Walzer, C.; Portas, T.J.; Blottner, S. 2006. Comparison of conventional equiaxed and directional freezing in rhinoceros (Ceratotherium simum, Diceros bicornis). Proceedings of the American Association of Zoo Veterinarians 2006: 113.

Walzer, C.; Goeritz, F.; Hermes, R.; Sos, E.; Molnar, V.; Hildebrandt, T.B.; Schwarzenberger, F. 2006. The anaesthesia of different rhino species – why teamwork is a crucial element?. Proceedings of the Conference on Anaesthesia and Surgery of zoo and exotic animals. Budapest, 2006, marcius 17-19: pp. 11-16.

Molnar, V.; Sos, E.; Mezosi, L.; Jakab, C.S.; Rigo, D.; Garamvolgyi, R.; Petrasi, Z.S.; Bogner, P.; Hildebrandt, T.B.; Goeritz, F.; Walzer, C.; Hermes, R. 2006. A seemingly normal parturition and a stillbirth of a southern white rhinoceros (Ceratotherium simum simum). Proceedings of the European Associaton of Zoo- and Wildlife Veterinarians 6: 1-4.

Kretzschmar, P.; Hermes, R.; Hildebrandt, T.B.; Andau, P.M.; Sentenial, N.; Symphorosa, S.; Goeritz, F.; Walzer, C.; Schwarzenberger, F.; Schaffer, N.E. 2006. Assisted reproduction program in the Sumatran rhinoceros (Dicerorhinus sumatrensis harrissonii). Proceedings of the International Symposium on physiology and ethology of wild and zoo animals 6: 132-133.

Hermes, R.; Hildebrandt, T.B.; Portas, T.J.; Goeritz, F.; Bryant, B.R.; Kretzschmar, P.; Walzer, C.; Schaffer, N.E.; Ladds, P.; Blottner, S. 2006. Testis and epididymis ultrasonography and fine-needle biopsy in the rhinoceros for tumor and fertility diagnosis. Proceedings of the European Association of Zoo- and Wildlife Veterinarians 2006: 1-2.

Sos, E.; Molnar, V.; Hermes, R.; Schwarzenberger, F.; Mezosi, L.; Kacskovic, I.; Hildebrandt, T.B.; Walzer, C.; Goeritz, F.; Silinski, S. 2006. Pregnancy monitoring and a parturition emergency plan of a southern white rhinoceros (Ceratotherium simum simum). Proceedings of the European Associaton of Zoo- and Wildlife Veterinarians 6: 1-6.

Hermes, R.; Hildebrandt, T.B.; Walzer, C.; Goeritz, F.; Patton, M.L.; Silinski, S.; Anderson, M.J.; Reid, C.E.; Wibbelt, G.; Tomasova, K.; Schwarzenberger, F. 2006. The effect of long non-reproductive periods on the genital health in captive female white rhinoceroses (Ceratotherium simum simum, C.s.cottoni). Theriogenology 65: 1492-1515, figs. 1-6.

Hermes, R.; Goeritz, F.; Walzer, C.; Sos, E.; Tomasova, K.; Molnar, V.; Mezosi, L.; Schwarzenberger, F.; Hildebrandt, T.B. 2005. Assisted reproduction and artifical insemination in rhinoceroses. Proceedings of the Conference on Reproduction biology of zoo animals, captive breeding programmes. Budapest, 2005, marcius 18-20: p. 6.

Hermes, R.; Hildebrandt, T.B.; Blottner, S.; Walzer, C.; Silinski, S.; Patton, M.L.; Wibbelt, G.; Schwarzenberger, F.; Goeritz, F. 2005. Reproductive soundness of captive southern and northern white rhinoceroses (Ceratotherium simum simum, C.s.cottoni): evaluation of male genital tract morphology and semen quality before and after cryopreservation. Theriogenology 63: 219-238, figs. 1-2, tables 1-7.