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03 May 2021 | Story Leonie Bolleurs | Photo Sonia Small
Prof Robert Bragg recently participated in a live panel discussion with leaders from the food and beverage sector, debating the challenges facing the industry and sharing their lessons and solutions.

Prof Robert Bragg from the Department of Microbiology and Biochemistry at the University of the Free State formed part of a live panel discussion with leaders from the food and beverage sector, debating the challenges facing the industry and sharing their lessons and solutions.

The discussion, part of a week-long virtual event (19-23 April), was attended by more than 1 300 attendees representing 500 food manufacturers, retailers, ingredient companies, and laboratories from 83 countries.

The magazine, New Food, coordinated the initiative that focused on food integrity. Speaking with Prof Bragg at the session that centred around animal welfare, zoonotic disease, and antibiotics, were Catherine McLaughlin, Chair, Responsible Use of Medicines in Agriculture (RUMA); Vicky Bond, UK Managing Director, The Humane League; and Daniela Battaglia, Livestock Development Officer, Food and Agriculture Organization of the United Nations (FAO).

The rise of antibiotic resistance

James Russell, President of the British Veterinary Association (BVA), was the moderator of the discussion that also touched on the issues surrounding animal welfare; how animal welfare can impact meat quality; avoiding future zoonotic disease; the rise of antibiotic resistance; ethical considerations to be mindful of; and the use of pesticides and safety considerations.

Prof Bragg specifically talked about antibiotic resistance. “Mankind has major problems with antibiotics,” he said. 

He asked if animal agriculture can be sustained without the use of antibiotics and stated that it was necessary to look at alternatives. Possible solutions he suggested include improved vaccines, bacteriophages, and phage enzymes. He, however, believes that biosecurity will be the most effective alternative. 

Living in a post-antibiotic area

Disinfectants are one of the biosecurity measures taken to minimise the risk of infectious diseases. “But it is important to be aware of the fact that as resistance to antibiotics increases the resistance to disinfectants also increases,” said Prof Bragg. 

He continued: “An increase in the use of disinfectants increases the resistance to disinfectants. This is also evident in humans, especially now during the COVID-19 pandemic. Much of these disinfectants are also of poor quality,” he said. 

According to Prof Bragg, we are living in a post-antibiotic era. “Although food standards are higher in developed countries such as in Europe – where people can pay more for poultry that were fed diets with reduced antibiotics, it is important to keep in mind that people cannot pay the same for poultry in developing countries. These countries often import poultry from countries where the food standards are not that high and where birds were treated to diets containing more antibiotics. A large supplier of poultry in Africa is small-scale farmers, who also feed their birds food containing higher levels of antibiotics.” 

“We need to look at the antibiotic problem as a global problem; a concern that will be with us for a while,” said Prof Bragg.

One solution provided by the group was for mankind to reduce its meat intake and moving to a more plant-based diet. This will have a significant effect on animal welfare as well as reducing the demand for antibiotics.

News Archive

Professor triumphs at Water Research Commission (WRC) Symposium
2013-12-13

 
Prof Leon van Rensburg

The university’s advancement of research excellence recently found further embodiment in Prof Leon van Rensburg from the Department of Soil- and Crop- and Climate Sciences. His expertise in the water sector resulted in award-winning research.

Prof Van Rensburg received the award for Sustainable Development Solutions 2013 at the Water Research Commission (WRC) Symposium held at the CSIR in Pretoria. The symposium acknowledged local scientific solutions that have had a global impact. Prof Van Rensburg was recognised for his outstanding research guiding the management of salinity under irrigation at farm level in South Africa – ensuring food production. The paper that earned him this honour is entitled “Rainwater harvesting and conservation practices: challenges and opportunities for sustainable land and water use of ‘The Green Village’ in arid to semi-arid climate zones.”

The awards were linked to the WRC’s newly-adopted corporate planning tool named the ‘Knowledge Tree’, guiding the commission’s operations. The ‘Knowledge Tree’ functions as a yardstick with which the WRC measures its impact in essential areas. The presentation of these accolades underscored the importance of water science and water technology in improving the daily reality of people at grassroots level.

Prof Van Rensburg’s research goal is to enhance the efficiency of water usage of crop production systems in both the dryland and irrigation sectors. Part of his latest achievements include being editor for a special edition of the Irrigation and Drainage Journal (2012; vol 61) on rainwater harvesting.

Prof Chris du Preez, co-author of the winning paper, is an expert on soil quality, especially organic matter. He serves as the Head of the Department of Soil, Crop and Climate Sciences and has also acted as President of the Soil Science Society of South Africa. His current research focuses on agricultural land use and soil organic matter changes, soil fertility and fertilisation, and agriculture water quality and usage.

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