Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
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

Fracking in the Karoo has advantages and disadvantages
2012-05-25

 

Dr Danie Vermeulen
Photo: Leatitia Pienaar
25 May 2012

Fracking for shale gas in the Karoo was laid bare during a public lecture by Dr Danie Vermeulen, Director of the Institute for Groundwater Studies (IGS). He shared facts, figures and research with his audience. No “yes” or “no” vote was cast. The audience was left to decide for itself.

The exploitation of shale gas in the pristine Karoo has probably been one of the most debated issues in South Africa since 2011.
 
Dr Vermeulen’s lecture, “The shale gas story in the Karoo: both sides of the coin”, was the first in a series presented by the Faculty of Natural and Agricultural Science under the theme “Sustainability”. Dr Vermeulen is a trained geo-hydrologist and geologist. He has been involved in fracking in South Africa since the debate started. He went on a study tour to the USA in 2011 to learn more about fracking and he visited the USA to further his investigation in May 2012.
 
Some of the information he shared, includes:

- It is estimated that South Africa has the fifth-largest shale-gas reserves in the world, following on China, the USA, Argentina and Mexico.
- Flow-back water is stored in sealed tanks and not in flow-back dams.
- Fracturing will not contaminate the water in an area, as the drilling of the wells will go far deeper than the groundwater aquifers. Every well has four steel casings – one within the other – with the gaps between them sealed with cement.
- More than a million hydraulic fracturing simulations took place in the USA without compromising fresh groundwater. The surface activities can cause problems because that is where man-made and managerial operations could cause pollution.
- Water use for shale-gas exploration is lower than for other kinds of energy, but the fact that the Karoo is an arid region makes the use of groundwater a sensitive issue. Dr Vermeulen highlighted this aspect as his major concern regarding shale-gas exploration.
- The cost to develop is a quarter of the cost for an oil well in the Gulf of Mexico.
- Dolerite intrusions in the Karoo are an unresearched concern. Dolerite is unique to the South African situation. Dolerite intrusion temperatures exceed 900 °C.

He also addressed the shale-gas footprint, well decommissioning and site reclamation, radio activity in the shale and the low possibility of seismic events.
 
Dr Vermeulen said South Africa is a net importer of energy. About 90% of its power supply is coal-based. For continued economic growth, South Africa needs a stable energy supply. It is also forecast that energy demand in South Africa is growing faster than the average global demand.
 
Unknowns to be addressed in research and exploration are the gas reserves and gas needs of South Africa. Do we have enough water? What will be the visual and social impact? Who must do the exploration?
 
“Only exploration will give us these answers,” Dr Vermeulen said.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept