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10 January 2019 | Story Leonie Bolleurs
Animal Conservation
A giraffe after a successful immobilisation capture being prepared for safe relocation.

From 2007 to 2014, the country experienced an exponential rise in rhino poaching – a growth of over 9,000%. Most illegal activities occur in the Kruger National Park.

 

Contributing to fight this battle is a group of five former students and colleagues from the UFS Department of Chemistry, now in the employment of Wildlife Pharmaceuticals. Situated in the Nelspruit area, Dr Inus Janse van Rensburg, Head of Research and Development; Lizette Janse van Rensburg, Head of Operations; Leo Kirsten, API expert; Dr Rikus Peens, API chemist; and Dr Chris Joubert, Laboratory Specialist, are working at this pharmaceutical manufacturing facility. The company specialises in the development, manufacturing, and end use of wildlife medicines.

 

With the medicines they develop, they are able to immobilise animals. Prof André Roodt, Discipline Head of the UFS Division of Inorganic Chemistry, who attended Indaba 9 with members of his research team in Skukuza, Kruger National Park, said wildlife species are being chemically immobilised for different reasons.

 

Prosecution of poachers

 

One example is of a rhino which was immobilised after a successful dehorning procedure by veterinarians and personnel of Wildlife Pharmaceuticals. As part of a programme to discourage poaching, selective DNA data collection is also conducted by some veterinarian groups for future use in the possible prosecution of individuals who are dealing with rhino horn. As soon as a rhino that was killed during poaching has been discovered, samples of the animal are obtained for a full analysis.

 

These samples are then stored on a database. Wherever rhino horn is confiscated (even internationally), the DNA is analysed, and the database may be consulted to see where the specific rhino was killed. The person in possession of the rhino horn may then be charged with the ‘killing’ of the original rhino.

 

Prof Roodt explained that the foundation of all medicines is based on active pharmaceutical ingredients (APIs) present in the finished pharmaceutical product, be it tablets, capsules, a syrup or a sterile injectable liquid. In accordance with local and international regulations and guidelines, chemists at API facilities are manufacturing these APIs globally.

 

Wildlife conservation

 

The APIs are respectively incorporated into registered finished pharmaceutical products, which are then used by registered veterinarians for chemical immobilisation and reversal of immobilisation in wildlife species.

 

According to Prof Roodt, the importance of developing appropriate chemical agents and the role of chemical manufacturing are crucial for animal conservation, with a scope far beyond the field of animal immobilisation, thus extending it to animal health, treatments, and vaccinations.

 

Besides saving our rhinos, wildlife species require immobilisation for different reasons. This can include, for example, wound treatment, relocation, and surgical procedures. “It is critical that the animals be immobilised to ensure limitation of stress to the animal, mitigate self-harm, allow safe handling of the animal, and for operator safety. These activities will be impossible to execute without chemical immobilisation of the animal,” said Prof Roodt.

 

Dr Janse van Rensburg, who received his PhD in the UFS Department of Chemistry in 2008, said the department, through exposing its students to, among others, complex equipment in labs as well as work in international labs to critically assess and benchmark their work against others, contributed to the success of his career at Wildlife Pharmaceuticals.

News Archive

Harvard couple to present lectures on Biostatistics and Mathematics at the UFS
2015-12-07


Professor Donald Rubin

Prof Donald Rubin (John L. Loeb Professor of Statistics at Harvard University) and Elizabeth Zell (MStat - mathematical statistician in the Division of Bacterial Diseases) will visit the University of the Free State (UFS) where they will present lectures on their respective work.

Over his prestigious academic career, Prof Don Rubin’s 400 publications and 13 books have earned him around 180 000 citations at an h-index of 113. He is one of the most cited statisticians/mathematicians/economists/psychologists in the world over the last 10 -15 years. He has supervised 35 PhD candidates as sole-supervisor, 17 more as co-supervisor, with a further eight in the pipeline.

Prof Rubin who will meet with UFS academics in the Department of Mathematics and Actuarial Sciences will also deliver a lecture: Rerandomisation to improve covariate balance in experiments.

Randomised experiments are the “gold standard” for estimating causal effects, yet in practice, chance imbalances often exist in covariate distributions between treatment groups. If covariate data are available before units are exposed to treatments, these chance imbalances can be mitigated by first checking covariate balance before the physical experiment takes place. Provided a precise definition of imbalance has been specified in advance, unbalanced randomisations can be discarded, followed by a rerandomisation. This process can continue until a randomisation yielding balance according to the definition is achieved. By improving covariate balance, rerandomisation provides more precise and trustworthy estimates of treatment effects.

Prof Rubin received an honorary professorship from the Faculty of Natural and Agricultural Sciences at the UFS.


Elizabeth Zell

The lecture will take place on:
Date: Tuesday 8 December 2015
Time: 16:00
Venue: Albert Wessels Auditorium, Bloemfontein Campus

Zell earned her Master’s degree in Statistics at North Carolina State University, and for more than two decades, was an active bio-statistical researcher in various offices of the Centers for Disease Control (CDC). Since 2013, she has been the Principal Statistician and President of Stat-Epi Associates, Inc. Her 150+ publications have earned her 14 500 citations at an h-index of over 50. She is a Fellow of the American Statistical Association, and, in 2010, she received the Statistics Section Government Award for outstanding contributions to statistics and public health by the American Public Health Association. During her career at the CDC, she earned more than 20 CDC research awards and honours.

She will deliver two lectures at the UFS. The first is entitled A Potential Outcomes Approach to Documenting the Public Health Impact of the Introduction of PCV13 for the Prevention of Invasive Pneumococcal Disease. The topic of her second lecture is: Assessing the Effectiveness of Intrapartum Antibiotic Prophylaxis for Prevention of Early-Onset Group B Streptococcus Disease through Propensity Score Design

Elizabeth’s lectures will take place on:
Date: Wednesday 9 December 2015
Time: 10:45 and 13:00
Venue: West Block 111, Bloemfontein Campus

For more information, please contact Dr Michael von Maltitz at VMaltitzMJ@ufs.ac.za.

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