Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
14 December 2021 | Story Leonie Bolleurs | Photo Supplied
Ofhani Mavhungu was recently awarded the Professor Rob Gous Scholarship by the Animal Feed Manufacturers Association (AFMA) of South Africa.

From a very early age, Ofhani Mavhungu knew he wanted to be involved in agriculture one day. Fast forward a few decades and you find Ofhani enrolled for the MScAgric Animal Science degree at the University of the Free State (UFS).

As a goal-orientated person who is open to new ventures, he reckons this degree will broaden his knowledge and understanding of the industry. “I believe Animal Science is an interdisciplinary field of study that enables students like me to pursue various career opportunities, ranging from primary animal production to secondary product processing, retail, and quality assurance. This motivates me to be part of the team that will ensure food security for the future generation,” says Ofhani.

Opening doors to a career in Animal Science

The Professor Rob Gous Scholarship for 2020/2021 that was jointly awarded to him and Victor Makofane of the University of Limpopo by the Animal Feed Manufacturers Association (AFMA) of South Africa, is for Ofhani a step closer to realising his dreams. 

“Diligence and hard work have always been the driving force throughout my studies, and I am delighted that my hard work was rewarded. This award further reflects on the Department of Animal Science’s dedication and commitment to build and mentor strong candidates who are recognised by the industry,” he says.

With increasing animal feed costs, the search for more cost-effective feed utilisation techniques – without compromising the nutritive value or feed quality – becomes critically important for intensive broiler producers. 

Ofhani’s study, which aims to evaluate the effect of increasing levels of a nutritional fat emulsifier with a high HLB on the (i) diet digestibility and (ii) production performance of broilers, will provide some insight into the possible energy-saving effect of dietary emulsifiers with a high HBL in broiler diets with moderate lipid inclusion levels. 

“A digestibility study will give more information on the emulsifier effect at metabolic level, and a production study will provide information on growth characteristics and carcass composition.”

An opportunity to compete with other candidates in the industry

“Few studies have been conducted on lipid emulsifiers under South African conditions, which necessitates the need for further research in this field,” he says. 

Ofhani, whose motto in life is to stay humble and accept positive criticism – as it is meant to enlighten you – wants to pursue a career in the animal feed industry. “My qualification will give me an opportunity to compete with other candidates of our generation in the industry, as well as on a research/academic level. By completing my MScAgric, I will broaden my own skill set so that I can continue with industry-related research in the future and provide mentorship to prospective animal scientists,” he adds. 

News Archive

From wheat protein to perfect pizza
2017-09-26

Description: Phd Read more Tags: Barend Wentzel, Department of Plant Sciences, plant breeding, proteins, Agricultural Research Council 

Barend Wentzel received his PhD at the Department
of Plant Sciences during the university’s
winter graduation ceremony.
He is pictured here with Prof Maryke Labuschagne,
professor in Plant Breeding at the UFS.
Photo: Charl Devenish

Barend Wentzel, an alumnus of the University of the Free State’s Department of Plant Sciences, is passionate about plant breeding. 

He literally eats and lives wheat proteins. In 1989 he initiated a breeding programme on arum lilies. “This breeding programme is at an advanced stage,” he said. Besides reading, playing the piano and accordion, Barend, due to the nature of his research at the Agricultural Research Council, also experiments with different types of ciabatta recipes made from sour dough. “I usually make my own pizza on Saturday evenings,” he said.

He is working at the Agricultural Research Council – Small Grain (ARC-SG) at the Wheat Quality Laboratory where he established a Cereal Chemistry Laboratory.

Complexity of flour quality

He explains that the focus of his research is on wheat protein composition. “The research conducted for my PhD study explains the complexity of flour quality to a certain extent, and it further emphasises the influence of the environment and genetic composition on selected baking characteristics. 

“Wheat protein can be divided into different types of protein fractions. These protein fractions contribute differently to dough properties and baking quality and the expression is affected by different components in the environment, including locality, rainfall and temperature. 

“Protein content alone does, however, not explain the variation in baking quality parameters, such as mixing time, dough strength and extensibility, and loaf volume.

“Several methods can be applied to quantify the different protein fractions. I am using high-performance liquid-chromatography (HPLC). The procedure entails the separation of a wheat protein extract through a column with chromatographic packing material. The injected sample is pumped through the column (known as the stationary phase) with a solvent (known as the mobile phase). The specific procedure, size-exclusion high-performance liquid-chromatography (SE-HPLC), is also used by the university’s Department of Plant Breeding, as well as in several international Cereal Chemistry Laboratories,” said Barend.

Dough strength and to loaf volume
“One of the highlights from the study was the positive contribution of the albumin and globulin protein fractions to dough strength and to loaf volume. The findings were wheat cultivar specific and the growing environment influenced the expression. The contribution of these protein fractions was much larger than previously reported for South African wheat cultivars,” said Barend. 
“Previous reports indicated that these protein fractions had a non-specific contribution to the gluten network during dough formation. The findings from this PhD justify further research on albumins and globulin proteins.” 

The Cereal Chemistry Laboratory at ARC-SG is involved in postgraduate student training under Barend’s guidance. He serves as co-promoter for several MSc and PhD students. He is also a collaborator on an international project with the International Maize and Wheat Improvement Centre (CIMMYT) in Mexico. Barend is furthermore working on improving wheat quality for processing and health purposes as a member of the expert working group of the International Wheat Initiative. 

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