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18 September 2019 | Story Leonie Bolleurs | Photo Dr Francois Deacon
Rhino Conservation
Should the ban on trade in rhino horn be lifted and South Africa could generate financial incentives, a large percentage of the funds should be allocated towards the conservation of the Java, Sumatra and Indian rhino.

Water, cold, thirst, volcanoes …. and poaching, are causing the death of rhinos across the globe. 

Recently, a group of scientists and rhino activists met at the University of the Free State (UFS) to discuss the plight of rhinos in South Africa. Bringing an international perspective to the colloquium on global rhino conservation, were three delegates from Indonesia who are working with the most endangered rhinos on earth – the Javan and Sumatra rhinos. 

Dr Rudi Putra, a biologist, received a Goldman Environmental Prize in 2014 for his efforts to save the Sumatra rhinos – of which an estimated 65 individuals are left in the Gunung Leuser National Park. Muhamnad Syamsudin is responsible for a 30-person rhino protection unit, which has not lost one rhino to poaching in Ujung Kulon National Park in 19 years. The third person from the Indonesian delegation was Dr Firmanto Noviar Suwanda, a lead scientist in rhino observation data, with a 30-person rhino monitoring unit, also in Ujung Kulon National Park.

Also presenting at the colloquium, were researchers from an inter-disciplinary team at the UFS, who are working together to establish a rhino conservation model through research and teaching.

The colloquium was convened by the UFS.

Rhino Conservation Colloquium

At the colloquium to discuss the conservation of rhinos, were from the left: Dr Francois Deacon, Muhamnad Syamsudin
(responsible for a 30-person  rhino protection unit – not losing one rhino to poaching in  19 years in Ujung Kulon National Park),
Dr Rudi Putra (biologist who received a Goldman Environmental Prize in 2014 for his efforts to save the Sumatra rhinos), Dr Firmanto Noviar Suwanda
(lead scientist on the rhino observation data, with a 30-person rhino monitoring unit, 
also in Ujung Kulon National Park),  and Dr Willem Daffue. Photo: Charl Devenish

Rhino revolution 

According to Dr Willem Daffue, a veterinarian from Kroonstad, the world needs a rhino revolution. “What we have been doing, is not working,” he said.

South African rhino farmers own almost half of the rhino population in the country. Dr Daffue shared facts on rhinos introduced to private captivity. “In the beginning, the animals died of thirst (the white rhino cannot lift its head to drink from a water trough), cold, and killing each other. And then poachers killed them …”

In 2009, South Africa saw an unprecedented spike in horn poaching, resulting in CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) implementing a ban on the sale of rhino horn within South Africa. The international sale of rhino horn – in an attempt to halt the unrelenting slaughter of rhinos in Africa and Asia – was already banned by CITES in 1977.

Role players agree that banning the trade in rhino horn is not the answer. The status quo is not working. 

For two weeks after the colloquium, Dr Deacon, Dr Daffue, and the Indonesians met with several role players in the rhino industry, including Dr Jana Pretorius (Rhino Pride Foundation), who established immediate, practical preventative measures to protect rhinos from poachers. Other people who were visited, were Dr Johan Marais (Saving the Survivors) who is tending injured endangered wildlife that have fallen victim to poaching, as well as Dr Danie Pienaar and Dr Markus Meyer (SANParks scientific services in the Kruger National Park’s Skukuza headquarters). They also knocked on the doors of Anton and Clive Walker (authors of Rhino Revolution) as well as Petronel Nieuwoudt (Care for Wild Rhino Sanctuary NPC), who is one of the few people worldwide who specialise in the care of orphaned rhinos.

“All role players feel that if they could sell the horns, they could easily afford to keep the animals secure.  And the horns are harvestable. We just trim them – as with sheep's wool. They grow back at up to 10 cm (4 inches) a year,” explained Dr Deacon. 

“Decision making, specifically about legalising the trade in rhino horn, needs to change. Involved parties feel that countries must decide, or more specifically, the role players in the industry – people with a responsibility towards the animals. It must not be up to CITES,” he said. 

Rhino Conversation project
For two weeks after the colloquium, Dr Deacon, Dr Daffue, and the Indonesians met with several role players in the rhino industry.
Photo: Hester de Beer


Safety for all rhinos


CITES met at the same time that the UFS team hosted the Indonesian party. “The timing of the trip was perfect, because CITES and the ban was being discussed. The status quo remains, however, as the ban on rhino-horn trade was not lifted,” said Dr Deacon.”

“It became apparent – we simply will not allow trade of South African rhino horn if we cannot secure the wellbeing and a safe haven for the Java, Sumatra, and the Indian rhino. We strongly discourage any sort of trade if one species is favoured while the others are facing a dark future,” stated Dr Deacon.

They proposed to different stakeholders that, should the ban on trade in rhino horn be lifted and South Africa could generate financial incentives, a large percentage of the funds should be allocated towards the conservation of the three Asian rhinos.

More research

At the UFS, the interdisciplinary team is continuing to work on research to breed a hardened animal through the project ‘Ecological and biological factors regulating rhino in captive environments.’ They are in the process of collecting data from 750 rhinos across South Africa. Several members of the team presented at the colloquium. 

Prof Paul Grobler from the Department of Genetics informed attendees on the role of genetics in rhino protection, focusing on touch DNA. He said it only takes seven to eight cells to amplify touch DNA that could link a perpetrator to a crime scene. With rhino poaching, touch DNA can be applied on the skin of the animal by collecting skin cells with tape lifting or swabs. 

Rolene Grobler, also from the UFS Department of Animal, Wildlife and Grassland Sciences, talked about how research on IVF, surrogacy, and cryopreservation of semen and embryos could be considered to save the rhino. 

Dr Hennie Butler from the UFS Department of Zoology and Entomology specifically focused on the behaviour of rhinos after dehorning or trimming of the horns. “Losing their horns will have an effect. Research has shown that the animals are more stressed, affecting birth rates, a change in habitat, and their social behaviour within bigger groups.” 

Also talking at the colloquium, were Dr Frans O'Neill, who focused on the cholesterol of the animals, and Dr Gary Osthoff, who looked at the milk production of the animals.

Colloquim at UFS
The Rhino Conservation hosted at the UFS brought together international scientists and conservationist.
Photo:Charl Devenish



News Archive

Inaugural lecture: Prof Robert Bragg, Dept. of Microbial, Biochemical and Food Biotechnology
2006-05-17



Attending the inaugural lecture were in front from the left Prof Robert Bragg (lecturer at the Department of Microbial, Biochemical and Food Biotechnology) and Frederick Fourie (Rector and Vice-Chancellor).  At the back from the left were Prof James du Preez (Departmental Chairperson:  Department of Microbial, Biochemical and Food Biotechnology) and Prof Herman van Schalkwyk (Dean: Faculty of Natural and Agricultural Sciences). Photo: Stephen Collett
 

A summary of an inaugural lecture delivered by Prof Robert Bragg at the University of the Free State:

CONTROL OF INFECTIOUS AVIAN DISEASES – LESSONS FOR MAN?

Prof Robert R Bragg
Department of Microbial, Biochemical and Food Biotechnology
University of the Free State

“Many of the lessons learnt in disease control in poultry will have application on human medicine,” said Prof Robert Bragg, lecturer at the University of the Free State’s (UFS) Department of Microbial, Biochemical and Food Biotechnology during his inaugural lecture.

Prof Bragg said the development of vaccines remains the main stay of disease control in humans as well as in avian species.  Disease control can not rely on vaccination alone and other disease-control options must be examined.  

“With the increasing problems of antibiotic resistance, the use of disinfection and bio security are becoming more important,” he said.

“Avian influenza (AI) is an example of a disease which can spread from birds to humans.  Hopefully this virus will not develop human to human transmission,” said Prof Bragg.

According to Prof Bragg, South Africa is not on the migration route of water birds, which are the main transmitters of AI.  “This makes South Africa one of the countries less likely to get the disease,” he said.

If the AI virus does develop human to human transmission, it could make the 1918 flu pandemic pale into insignificance.  During the 1918 flu pandemic, the virus had a mortality rate of only 3%, yet more than 50 million people died.

Although the AI virus has not developed human-to-human transmission, all human cases have been related to direct contact with infected birds. The mortality rate in humans who have contracted this virus is 67%.

“Apart from the obvious fears for the human population, this virus is a very serious poultry pathogen and can cause 100% mortality in poultry populations.  Poultry meat and egg production is the staple protein source in most countries around the world. The virus is currently devastating the poultry industry world-wide,” said Prof Bragg.

Prof Bragg’s research activities on avian diseases started off with the investigation of diseases in poultry.  “The average life cycle of a broiler chicken is 42 days.  After this short time, they are slaughtered.  As a result of the short generation time in poultry, one can observe changes in microbial populations as a result of the use of vaccines, antibiotics and disinfectants,” said Prof Bragg.   

“Much of my research effort has been directed towards the control of infectious coryza in layers, which is caused by the bacterium Avibacterium paragallinarum.  This disease is a type of sinusitis in the layer chickens and can cause a drop in egg product of up to 40%,” said Prof Bragg.

The vaccines used around the world in an attempt to control this disease are all inactivated vaccines. One of the most important points is the selection of the correct strains of the bacterium to use in the vaccine.

Prof Bragg established that in South Africa, there are four different serovars of the bacterium and one of these, the serovar C-3 strain, was believed to be unique to Southern Africa. He also recently discovered this serovar for the first time in Israel, thus indicating that this serovar might have a wider distribution than originally believed.

Vaccines used in this country did not contain this serovar.  Prof Bragg established that the long term use of vaccines not containing the local South African strain resulted in a shift in the population distribution of the pathogen.

Prof Bragg’s research activities also include disease control in parrots and pigeons.   “One of the main research projects in my group is on the disease in parrots caused by the circovirus Beak and Feather Disease virus. This virus causes serious problems in the parrot breeding industry in this country. This virus is also threatening the highly endangered and endemic Cape Parrot,” said Prof Bragg.

Prof Bragg’s research group is currently working on the development of a DNA vaccine which will assist in the control of the disease, not only in the parrot breeding industry, but also to help the highly endangered Cape Parrot in its battle for survival.

“Not all of our research efforts are directed towards infectious coryza or the Beak and Feather Disease virus.  One of my Masters students is currently investigating the cell receptors involved in the binding of Newcastle Disease virus to cancerous cells and normal cells of humans. This work will also eventually lead to a possible treatment of cancer in humans and will assist with the development of a recombinant vaccine for Newcastle disease virus,” said Prof Bragg.

We are also currently investigating an “unknown” virus which causes disease problems in poultry in the Western Cape,” said Prof Bragg.
 
“Although disinfection has been extensively used in the poultry industry, it has only been done at the pre-placement stage. In other words, disinfectants are used before the birds are placed into the house. Once the birds are placed, all use of disinfectants stops,” said Prof Bragg.

“Disinfection and bio security can be seen as the ‘Cinderella’ of disease control in poultry.  This is also true for human medicine. One just has to look at the high numbers of people who die from hospital-acquired infections to realise that disinfection is not a concept which is really clear in human health care,” said Prof Bragg.

Much research has been done in the control of diseases through vaccination and through the use of antibiotics. “These pillars of disease control are, however, starting to crumble and more effort is needed on disinfection and bio security,” said Prof Bragg.

Prof Bragg has been working in close co-operation with a chemical manufacturing company in Stellenbosch to develop a unique disinfectant which his highly effective yet not toxic to the birds.

As a result of this unique product, he has developed the continual disinfection program for use in poultry. In this program the disinfectant is used throughout the production cycle of the birds. It is also used to ensure that there is excellent pre-placement disinfection.

“The program is extensively used for the control of infectious diseases in the parrot-breeding industry in South Africa and the product has been registered in 15 countries around the world with registration in the USA in the final process,” said Prof Bragg.

“Although the problem of plasmid mediated resistance to disinfectants is starting to rear its ugly head, this has allowed for the opening of a new research field which my group will hopefully exploit in the near future,” he said.

 

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