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18 February 2019 | Story Leonie Bolleurs | Photo HO de Waal
Ground spiny Cactus pear
Shredded, sun-dried, and coarsely ground spiny cactus pear (Opuntia ficus-indica and O. engelmannii), ready to be included in balanced diets for ruminant livestock (cattle, sheep, goats) and wild antelopes.

Prof HO de Waal, researcher in the Department of Animal, Wildlife and Grassland Sciences at the University of the Free State (UFS), has developed a standard procedure for the processing of spiny cactus pear (Opuntia spp.) into livestock fodder. This will ultimately assist in the management of massive infestations of spiny cactus pear and help to convert underutilised farmland back to natural grazing land.

In addition to applying biological control agents, mechanical control is used to harvest alien spiny cactus pear, and the large volume of material is processed as livestock feed.

 

Introduced to South Africa

 

Three hundred years ago, seafarers visiting the Cape of Good Hope introduced the well-known invading alien spiny cactus pear to South Africa. These were later transported inland and by the 1950s about one million ha of South Africa had been invaded by the alien cacti.

Some regions in the Eastern Cape have been taken over by dense, impenetrable thickets of these cacti. Invasive alien plants (IAPs) such as cacti pose a direct threat to, among others, South Africa’s water security and productive use of land.

A range of methods is used to control IAPs, including mechanical, chemical, biological, and integrated control methods.

A control programme must include the three phases of initial control to drastically reduce the existing population; follow-up control of seedlings, root suckers, and coppice growth; and maintenance control on an annual basis to sustain low alien plant numbers.

 

Processing spiny cactus pears

 

According to Prof De Waal, the harvesting and processing of the spiny cactus pear is fairly simple. Although it requires a good measure of physical strength, perseverance, and the necessary protective clothing, the cacti can be processed by harvesting the plants; shredding the cladodes through a cladode cutter; then drying them in the sun, and lastly grinding it in a hammer mill. “The long spines are degraded mechanically by grinding the sun-dried cladode strips in a hammer mill before including it in balanced livestock diets,” said Prof De Waal.

Infestations will be opened, reclaimed, rehabilitated and the natural pastures (veld) allowed to revert back to grazing for livestock.

The National Resource Management Programme (NRM)P) will be approached for official support in clearing and rehabilitating massive areas of infestation by alien spiny cactus pear in the Eastern Cape. Such financial support will be an investment in reducing the infestation by invaders and the rehabilitation and sustainable use of natural resources in South Africa.

News Archive

Service learning teaching strategy essential for the infusion of graduate attributes
2017-01-02

Description: Dr Pulane Pitso Tags: Dr Pulane Pitso 

Dr Pulane Pitso, Director: Institutional Performance
Monitoring within Performance Monitoring and Evaluation
Branch in the Department of the Premier, Free State
Provincial Government (FSPG).
Photo: Rulanzen Martin

“Public service delivery is not only about ‘government’s sector end products’, but is also fundamentally related to the ways in which the citizens can be best served at the point of client interface, as the primary beneficiaries.”

It is against this backdrop that Dr Pulane Pitso’s study explored the role of Higher Education Institutions (HEIs) in infusing the curriculum with graduate attributes for improved service delivery. The study is entitled: Community service learning as a transformative tool for infusing the university curriculum with graduate attributes for improved service delivery.
 
Citizens the central focus in public-service delivery
Although with the advent of democracy, the South African public service introduced the Batho Pele “people first” initiative which is one of the key transformation-oriented initiatives to ensure that citizens are the central focus in public service  delivery. An extant literature indicates that more work by the government still needs to be done in terms of the institutionalisation and implementation thereof.

Notwithstanding that public service is primarily responsible for addressing challenges related to poor service delivery, Dr Pitso moved from a premise that a multifaceted and collaborative approach, underpinned by a concerted effort by all relevant sectors, is more likely to contribute significantly towards improving service delivery. Specific focus was given to sectors primarily mandated to lay foundations through training and development such as HEIs, since the nature and quality of public service largely depends on the nature, quality and relevance of the system of education.

CSL a transformative teaching strategy
The basis for her thesis, emanated from the contention that public service delivery is a dynamic process which cultivates into a citizen-government relationship.

“It is this relationship that makes the implementation of the Batho Pele initiative crucial in ensuring that the social fabric and moral character of government is not compromised, thus the sustainability and facilitation of the emerged relationship,” Dr Pitso says.

The study focuses on the notion of community service learning (CSL) as an increasingly recognised transformative teaching strategy. It transcends lecture halls and utilises communities as educational spaces to provide practical exposure to real-life experiences to students on both learning and serving the communities.

Instilling graduate attributes in students
Dr Pitso’s thesis, which was predominately qualitative in nature, comprised two main stages. The first stage of the study focused on determining the current state of the public service in terms of the implementation of the Batho Pele principles. Whereas with the second stage, the focus was on determining the extent to which the graduate attributes are instilled in students by means of an exit-level CSL module at the UFS.

Dr Pitso’s thesis, which was awarded to her on 30 June 2016, is the product of five years of hard work, commitment and perseverance. She said it would not have been realised if it had not been for the leadership and mentorship of her promoter, Prof Mabel Erasmus, and co-promoter, Prof Victor Teise.

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