scholarly journals An evaluation of serological tests in the diagnosis of bovine brucellosis in naturally infected cattle in KwaZulu-Natal province in South Africa

2017 ◽  
Vol 88 ◽  
Author(s):  
Songelwayo L. Chisi ◽  
Yoanda Marageni ◽  
Prebashni Naidoo ◽  
Gloria Zulu ◽  
George W. Akol ◽  
...  
Keyword(s):  
South Africa ◽  
South African ◽  
Enzyme Linked Immunosorbent Assay ◽  
Infected Cattle ◽  
Serological Tests ◽  
Significant Difference ◽  
Kwazulu Natal ◽  
Cost Efficacy ◽  
The Cost ◽  
The Rose

The diagnostic sensitivity (DSe) of the Rose Bengal test (RBT), the complement fixation test (CFT), the serum agglutination test (SAT), the competitive enzyme-linked immunosorbent assay (cELISA) and the indirect ELISA (iELISA) were determined in naturally infected cattle in KwaZulu-Natal province of South Africa with known infectious status from culture (gold standard). Natural brucellosis infection status of animals was determined by culturing and identification of Brucella abortus biovar 1 from abomasal fluid, milk, hygroma fluid, lymph nodes or uterine discharges samples. The diagnostic specificity (DSp) of the tests mentioned above was determined using samples from known negative herds. There was no statistically significant difference between the tests in their ability to diagnose brucellosis. The RBT and iELISA had the highest DSe of 95.8%, whereas RBT and CFT had the highest DSp of 100%. In South African laboratories, the RBT and CFT serological tests are used, because of the cost efficacy of CFT when compared to the less labour intensive but more expensive iELISA.

scholarly journals Comparative Brucella abortus antibody prevalence in cattle under contrasting husbandry practices in Uganda

2013 ◽  
Vol 84 (1) ◽  
Author(s):  
Gerald Nizeyimana ◽  
Frank N. Mwiine ◽  
Chrisostom Ayebazibwe
Keyword(s):  
Brucella Abortus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Serum Samples ◽  
Serological Tests ◽  
System P ◽  
Grazing System ◽  
Significant Difference ◽  
Husbandry Practices ◽  
Antibody Elisa ◽  
The Rose

A study was conducted in the Luwero and Nakasongola districts in central Uganda to determine and compare the prevalence and distribution of antibodies against Brucella abortus in cattle under contrasting husbandry practices, using two serological tests. Three hundred and fifteen serum samples were systematically sampled from 29 farms and subsequently tested using the Rose Bengal plate test (RBPT) and Indirect Antibody Enzyme Linked Immunosorbent Assay (I-ELISA). The overall prevalence of antibodies against Brucella abortus in the Nakasongola and Luwero districts was 2.4% and 4.7% on RBPT, compared with 1.2% and 3.34 % on I-ELISA. There was no significant difference between the results obtained by RBPT and indirect antibody ELISA (p > 0.05). It was noted that antibodies against Brucella abortus were widely spread over different farms regardless of the cattle grazing system (p > 0.05). Based on the findings, it is feasible to use RBPT as a cheaper screening alternative for brucellosis. A comprehensive national brucellosis study should be undertaken to study the epidemiology and prevalence of brucellosis in Uganda.

scholarly journals ADDRESSING THE LOCAL IN LOCALIZATION: A CASE STUDY OF OPEN TEXTBOOK ADOPTION BY THREE SOUTH AFRICAN TEACHERS

2013 ◽  
Vol 17 (2) ◽  
Author(s):  
Cynthia Jimes ◽  
Shenandoah Weiss ◽  
Renae Keep
Keyword(s):  
South Africa ◽  
South African ◽  
Cost Savings ◽  
Open Educational Resources ◽  
Collaborative Authorship ◽  
Kwazulu Natal ◽  
Study Support ◽  
The Cost ◽  
Open Textbooks

This article presents a case study of the adoption and use of open textbooks by three high school teachers in the KwaZulu-Natal province of South Africa. The textbooks, collaboratively authored and distributed through the South African-initiative, Siyavula, are available online and are openly licensed, allowing teachers to freely use, modify, print, and share them with peers. Building on prior research conducted on the Siyavula project, the study consisted of interviews with teachers in South Africa to assess their reasons for adopting open textbooks, and their experiences using Siyavula’s open textbooks in the classroom. The study revealed that beyond the cost-savings and flexible printing possibilities afforded by using open textbooks, the teachers’ adoption and use of the open textbooks were tied to the local nature of the textbooks, as well as the localization opportunities made possible through open licensing. Specifically, the study revealed the importance of content rooted in the cultural and geographic contexts in which teachers teach—for example, through authentic scenarios and accessible texts for students and teachers to work with. Moreover, because the Siyavula textbooks were collaboratively written by local field experts and scholars, the content was viewed by the teachers as higher quality than proprietary textbooks, which often have few authors and are disseminated by large publishing companies. Furthermore, the study found that localization of the textbooks involved not only to the ability to modify and annotate the content to meet classroom needs, but also the ability to meet local socioeconomic constraints, including technological and budgetary limitations. The findings also indicated that the textbooks’ collaborative authorship and possibilities for user modifications facilitated communication about enhancements to the textbook between the textbook authors and the teacher users. On the whole, the findings support nascent, prior research revealing that when open educational resources (OER) are created, developed and evaluated through processes drawing upon individuals who live and work within the context in which the OER are being created for, the end result is more useable. The results of the study support the need for further research in other settings globally, centering on, for example, the role of collaborative authorship in relation to perceived quality of content.

Transforming the Rural Agricultural Landscape Through Groundwater Optimisation: Exploring A Chinese-South African Partnership

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Nirmala Dorasamy ◽  
Olayemi Bakre
Keyword(s):  
South Africa ◽  
South African ◽  
Agricultural Landscape ◽  
Agricultural Practices ◽  
Subsistence Farming ◽  
Water Shortages ◽  
Subsistence Farmers ◽  
Farming Communities ◽  
Standards Of Living ◽  
Kwazulu Natal

The majority of the South African rural populace is directly or indirectly engaged in agricultural practices to earn a livelihood. However, impediments such as climate change, water shortages, and inadequacy of institutional support have undermined these once thriving subsistence farming communities. Furthermore, poor leadership in hydrology, coupled with a lack of depth in skills at all government levels to facilitate the understanding of the importance of groundwater, has made it near impossible for subsistence farmers to benefit optimally from groundwater. The 2012 drought experienced in South Africa paralysed several subsistence farming communities in KwaZulu-Natal. To revamp subsistence farming and assist these farmers across South Africa, the Department of Water and Sanitation launched interventions, but despite the enormous resources expended, indicators (e.g. unsustainable farming practices, poor crop yield, pitiable living conditions, and poor standards of living) provide evidence that these interventions have not yielded the desired results. This paper seeks to suggest practicable interventions aimed at reducing the vulnerability of subsistence farmers in KwaZulu-Natal. The study pursued a qualitative approach in that it solicited the views of experts on groundwater and in related fields to gain an in-depth perspective. Some of the core challenges undermining the sustainability and growth of subsistence farming in the study area were found to be the inadequacy of experts on groundwater, water shortages, institutional deficiencies, lack of political will, and lack of coordination among stakeholders. Pragmatic recommendations are made to address these challenges, among other things to encourage a South African-Chinese partnership in the hydrology sector.

A study of cane supply benefits associated with ad hoc mechanical harvesting to mitigate cutter absenteeism

2013 ◽  
pp. 532-538 ◽  
Author(s):  
Muhammad Kadwa ◽  
Carel N Bezuidenhout
Keyword(s):  
Supply Chain ◽  
South African ◽  
Ad Hoc ◽  
Sugar Mill ◽  
The South ◽  
Optimum Performance ◽  
Kwazulu Natal ◽  
Cane Quality ◽  
The Cost

The Eston Sugar Mill is the newest in the South African KwaZulu-Natal sugar belt. Like most other mills, it can be argued that there are inefficiencies in the supply chain due to systematic issues, which reduce optimum performance. It was alleged that mill processes are slowed, or stopped, on Sundays, Mondays, as well as some Tuesdays and Wednesdays, due to pay-weekends, because of the associated cutter absenteeism. This increases the length of the milling season (LOMS), increases milling costs and reduces the average cane quality for the season. Data on cane deliveries to the Eston Mill, over a period of five seasons, were analysed to study the magnitude of the problem. It was statistically verified that cane shortages occur immediately after payweekends and it was conservatively estimated that cutter absenteeism occurs between 25–29 days per season, which increases the LOMS by six to ten days. The associated cost of this problem equated to an average of US$159,500 (approximately EUR120,000) per milling season. In this paper, an alternative harvesting system scenario is suggested, assuming that mechanical harvesters be used after a pay-weekend, to mitigate the impacts of cutter shortages. However, the solution is calculated to be risky. When the cost of new equipment was considered, only two of the five seasons were able to justify the associated costs.

scholarly journals Investigating competencies needed by European-trained doctors in rural South African hospitals

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
James R. Barnacle ◽  
Oliver Johnson ◽  
Ian Couper
Keyword(s):  
South Africa ◽  
South African ◽  
Online Survey ◽  
Rural District ◽  
Eastern Cape ◽  
Rural Medicine ◽  
Rural South ◽  
District Hospitals ◽  
Kwazulu Natal ◽  
Postgraduate Diploma

Background: Many European-trained doctors (ETDs) recruited to work in rural district hospitals in South Africa have insufficient generalist competencies for the range of practice required. Africa Health Placements recruits ETDs to work in rural hospitals in Africa. Many of these doctors feel inadequately prepared. The Stellenbosch University Ukwanda Centre for Rural Health is launching a Postgraduate Diploma in Rural Medicine to help prepare doctors for such work.Aim: To determine the competencies gap for ETDs working in rural district hospitals in South Africa to inform the curriculum of the PG Dip (Rural Medicine).Setting: Rural district hospitals in South Africa.Methods: Nine hospitals in the Eastern Cape, KwaZulu-Natal and Mpumalanga were purposefully selected by Africa Health Placements as receiving ETDs. An online survey was developed asking about the most important competencies and weaknesses for ETDs when working rurally. The clinical manager and any ETDs currently working in each hospital were invited to complete the survey.Results: Surveys were completed by 19 ETDs and five clinical managers. The top clinical competencies in relation to 10 specific domains were identified. The results also indicate broader competencies required, specific skills gaps, the strengths that ETDs bring to South Africa and how ETDs prepare themselves for working in this context.Conclusion: This study identifies the important competency gaps among ETDs and provides useful direction for the diploma and other future training initiatives. The diploma faculty must reflect on these findings and ensure the curriculum is aligned with these gaps.

scholarly journals Gender factors associated with sexual abstinent behaviour of rural South African high school going youth in KwaZulu-Natal, South Africa

2008 ◽  
Vol 24 (3) ◽  
pp. 450-460 ◽  
Author(s):  
S. Dlamini ◽  
M. Taylor ◽  
N. Mkhize ◽  
R. Huver ◽  
R. Sathiparsad ◽  
...  
Keyword(s):  
South Africa ◽  
High School ◽  
South African ◽  
Rural South ◽  
Factors Associated ◽  
Kwazulu Natal

scholarly journals Serological survey of bovine viral diarrhoea virus in Namibian and South African kudu (Tragelaphus strepsiceros) and eland (Taurotragus oryx)

2013 ◽  
Vol 84 (1) ◽  
Author(s):  
Terence P. Scott ◽  
Eleanor Stylianides ◽  
Wanda Markotter ◽  
Louis Nel
Keyword(s):  
South Africa ◽  
South African ◽  
Southern Africa ◽  
Bovine Viral Diarrhoea Virus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Bovine Viral Diarrhoea ◽  
Serum Samples ◽  
Diarrhoea Virus ◽  
Central Regions ◽  
Tragelaphus Strepsiceros

Bovine viral diarrhoea virus (BVDV) is a pestivirus that affects members of the order Artiodactyla, including members of the subfamily Bovinae. Little is known about the seroprevalence of BVDV in southern Africa, especially the prevalence in wild ruminant populations such as kudu (Tragelaphus strepsiceros). A handful of random surveys suggested that seroprevalence ranged between 6% and 70% in southern African wild ruminants. The present study aimed to determine the seroprevalence of BVDV amongst kudu and eland (Taurotragus oryx) from Namibia and South Africa. A BVDV-specific enzyme-linked immunosorbent assay was performed on 50 serum samples from kudu and eland from South Africa and Namibia. The seroprevalence of BVDV in South African kudu was 71%, identical to that in Namibian kudu. The seroprevalence in Namibian eland was 40%. The kudu and cattle farming (free ranging) regions in Namibia predominantly overlap in the central regions, ensuring ample opportunity for cross-species transmission of BVDV. It is therefore important to determine the true prevalence of BVDV in southern Africa in both domesticated and wild animals. In addition, a potential link between BVDV incidence and a devastating rabies epidemic in Namibian kudu was proposed and such a notion could be supported or discredited by comparative prevalence data.

scholarly journals Cost awareness of radiological studies among doctors at Universitas Academic Hospital in Bloemfontein, South Africa

2021 ◽  
Vol 25 (1) ◽  
Author(s):  
Khanyisa N. Mrwetyana ◽  
Jacques Janse van Rensburg ◽  
Gina Joubert
Keyword(s):  
South Africa ◽  
Cost Estimation ◽  
Academic Hospital ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Significant Difference ◽  
Education Training ◽  
The Cost ◽  
Cost Awareness ◽  
Radiological Studies

Background: South Africa has high healthcare expenses. Improving cost-consciousness could decrease government expenditure on healthcare.Objectives: To determine cost awareness of radiological studies among doctors at a tertiary hospital. The objective was met by assessing the accuracy of cost estimation according to the level of training and speciality, whether participants had received prior education/training related to cost awareness and if they had a desire to learn more about the cost of radiological imaging.Method: A cross-sectional survey was conducted in six clinical departments at Universitas Academic Hospital using an anonymous questionnaire that determined doctors’ cost awareness of five radiological studies. Each radiological study was answered using six different cost ranges, with one correct option. Costs were based on the Department of Health’s 2019 Uniform Patients Fee Schedule (UPFS).Results: In total, 131 (67.2%) of 195 questionnaires distributed to registrars and consultants were returned. Overall, low accuracy of cost estimation was observed, with 45.2% of the participants choosing only incorrect options. No participant estimated all five costs correctly. Only the Internal Medicine clinicians demonstrated a significant difference between registrars and consultants for the number of correct answers (median 0 and 1, respectively) (p = 0.04). No significant differences were found between specialities stratified by registrars/consultants. Most participants (88.6%) would like to learn about imaging costs. Only 2.3% of the participants had received prior education/training related to cost awareness of radiological studies.Conclusion: Doctors were consistently inaccurate in estimating the cost of radiological studies. Educating doctors about the cost of radiological imaging could have a positive effect on healthcare expenditure.

scholarly journals Increasing game prices may alter farmers’ behaviours towards leopards (Panthera pardus) and other carnivores in South Africa

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3369 ◽  
Author(s):  
Tara J. Pirie ◽  
Rebecca L. Thomas ◽  
Mark D.E. Fellowes
Keyword(s):  
South Africa ◽  
South African ◽  
Panthera Pardus ◽  
Farming Practices ◽  
Farming Community ◽  
Trophy Hunting ◽  
Questionnaire Surveys ◽  
The Cost ◽  
Financial Losses ◽  
Game Animals

Human-carnivore conflict occurs globally, particularly in regions where large carnivores predate livestock. Retaliatory killings do occur, and although predation of livestock by carnivores happens, losses from other factors such as disease or injury can be misattributed because of landowner perceptions. Game farming for both trophy hunting and eco-tourism is becoming increasingly common in South Africa, and there has been a rapid increase in the cost of game animals (in some species as much as five-fold) between 2010 and 2015. This could result in an increase in conflict between commercial game farmers and carnivores. We conducted two questionnaire surveys of farmers in 2010 and 2015 to investigate this. We asked if there had been changes in farming practices, perceived predator activity, perceived amount of livestock and commercial game losses, and actions taken towards carnivores in a South African farming community. We found no significant change in farming types in the area or losses of livestock between the years. However, there was a significant increase in perceived commercial game losses reported, even though protection of game had increased. Actions taken towards carnivores by livestock/game farmers were also significantly more negative in 2015 compared to farmers growing crops, but there was no such difference in 2010. We suggest that these changes could be a result of the increase in game prices over that period, leading to greater financial losses when an animal is predated, which in turn could increase the likelihood of retaliatory killings of carnivores.

Drivers of efficiency and their influence on airline performances in South Africa: a bootstrapped meta-frontier approach

2019 ◽  
Vol 14 (1) ◽  
pp. 121-135
Author(s):  
Oswald Mhlanga
Keyword(s):  
South Africa ◽  
South African ◽  
Airline Industry ◽  
Policy Implications ◽  
Niche Markets ◽  
African Government ◽  
Content Type ◽  
Political Interference ◽  
Run Up ◽  
The Cost

Purpose This paper aims to identify drivers of efficiency and their influence on airline performances in South Africa. Unfortunately, the methods currently used to measure airline efficiency fail to address the heterogeneity problem, which blurs inefficiency. Design/methodology/approach To remedy the heterogeneity problem, this paper adopts the meta-frontier framework to identify drivers of efficiency. The interesting feature of the model is that it ensures that heterogeneous airlines are compared based on one homogeneous technology. The model is tested using a panel data sample of nine South African airlines, which operated from 2015 to 2018. Findings The paper demonstrates that structural drivers, namely, “aircraft size”, and “airline ownership” and one executional driver, namely, “the cost structure” significantly influence (p < 0.05) airline efficiency thereby corroborating evidence from some prior studies. Research limitations/implications First, because of the small size of the industry, fewer airlines and a lack of detailed data, the study could not consider other important factors such as optimal routing and network structure. Second, a more rigorous analysis over a period of time would yield better understanding about the growth of the industry in South Africa and recognise the variation in the influence of drivers of efficiency on airline performances over time. Practical implications The results have potential policy implications. First, as the market in South Africa is too small to operate with a smaller aircraft probably, for airlines that operate with smaller aircraft to operate efficiently they should first identify niche markets where they can have a route monopoly. Second, while all state-owned airlines are perfect statehood symbols that define and represent countries, most state carriers in South Africa are highly inefficient. The researcher recommends policymakers to privatise state airlines or seek equity partners. Many nationalised airlines have turned losses to profits in the run-up to privatisation. British Airways, once a large burden on the British taxpayer, is now one of the world’s most efficient airlines. After the privatisation of Air France and Iberia, all two turned from loss-making concerns into profitable airlines. It, therefore, makes no sense for the South African government to expect state carriers to pursue a commercial mandate with such political interference. The very notion of efficiency itself is at risk. Originality/value This paper is a first attempt to identify drivers of operational efficiency using a bootstrapped meta-frontier approach in the airline industry in South Africa. By applying the meta-frontier approach the paper ensures that all heterogeneous airlines are assessed based on their distance from a common and identical frontier.

Sign in / Sign up

Export Citation Format

Share Document