- UPSpace Home
- →
- Veterinary Science
- →
- Browsing Veterinary Science by UP Author
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing Veterinary Science by UP Author "Van Wyk, Jan Aucamp"
Now showing items 1-19 of 19
-
Reynecke, Dean Peter; Van Wyk, Jan Aucamp; Gummow, Bruce; Dorny, P.; Boomker, Jacob Diederik Frederik (Elsevier B.V., 2011-05)Test sensitivity and specificity for the FAMACHA© clinical test for anaemia due to haemonchosis have previously been shown to be adequate in differentiating between heavily/less heavily infected sheep, but these properties ...
-
Maia, Dhéri; Rosalinski-Moraes, Fernanda; Van Wyk, Jan Aucamp; Weber, Saulo; Sotomaior, Cristina Santos (Elsevier, 2014-02)The FAMACHA©system is a method for selective anthelmintic treatment comprising earlydetection of haemonchosis in sheep and goats. In order to evaluate the hands-on trainingmethodology and the learning level of the participants, ...
-
Van Wyk, Jan Aucamp; Reynecke, Dean Peter (Elsevier B.V., 2011-05)This article is the first of a series aimed at developing specific decision support software for on-farm optimisation of sustainable integrated management of haemonchosis. It contains a concept framework for such a system ...
-
Leask, Rhoda; Van Wyk, Jan Aucamp; Thompson, P.N. (Peter N.); Bath, Gareth F. (Elsevier, 2013-02)Much research has gone into developing a sustainable management tool for haemonchosis, namely the FAMACHA© system, which has been validated by numerous studies worldwide. However, the financial implications on production ...
-
Riley, D.G.; Van Wyk, Jan Aucamp (Elsevier, 2011-04)Internal parasite infestation in sheep can be practically assessed using a subjective score for the color of the inner eyelid (FAMACHA© score). Additive genetic variation for this trait would permit selection against ...
-
Riley, D.G.; Van Wyk, Jan Aucamp (Elsevier, 2009)The objectives of this study were to estimate genetic parameters for FAMACHA score and related traits at different levels of worm challenge in sheep and to assess the effect of different methods for modelling records from ...
-
Airs, Paul M.; Ventura-Cordero, Javier; Gwiriri, Lovemore C.; Tinsley, Jonathan H.I.; Mvula, Winchester; Lee, Michael R.F.; Van Wyk, Jan Aucamp; Nalivata, Patson C.; Takahashi, Taro; Morgan, Eric R.; Safalaoh, Andrews C.L. (Elsevier, 2023-12)The true value of goats, their management systems, and the limitations of smallholdings have not been fully explored in the context of sustainable livelihoods among rural smallholders in central Malawi. However, goats are ...
-
Jex, Aaron R.; Waeschenbach, Andrea; Hu, Min; Van Wyk, Jan Aucamp; Beveridge, Ian; Littlewood, D. Timothy J.; Gasser, Robin B. (BioMed Central, 2009-02)BACKGROUND: Hookworms are blood-feeding nematodes that parasitize the small intestines of many mammals, including humans and cattle. These nematodes are of major socioeconomic importance and cause disease, mainly as a ...
-
Walker, Josephine G.; Ofithile, Mphoeng; Tavolaro, F. Marina; Van Wyk, Jan Aucamp; Evans, Kate; Morgan, Eric R. (Elsevier, 2015-11)Due to the threat of anthelmintic resistance, livestock farmers worldwide are encouraged to selectively apply treatments against gastrointestinal nematodes (GINs). Targeted selective treatment (TST) of individual animals ...
-
Van Wyk, Jan Aucamp; Mayhew, Estelle (AOSIS Open Journals, 2013-03-13)In 2004, a new concept was introduced for simplifying identification of larvae of the common nematodes of cattle, sheep and goats that comprises estimates of the lengths of the sheath tail extensions of infective third-stage ...
-
Panda, Sudhanshu S.; Terrill, Thomas H.; Mahapatra, Ajit K.; Morgan, Eric R.; Siddique, Aftab; Pech-Cervantes, Andres A.; Van Wyk, J.A. (Jan Aucamp) (MDPI, 2023-08-23)Lack of attention to rural healthcare for livestock in the southeastern United States has led to a focus on small ruminant farming, mainly using sericea lespedeza [SL; Lespedeza cuneata (Dum-Cours) G. Don], a drought-resistant ...
-
Walker, Josephine G.; Evans, Kate E.; Vineer, Hannah Rose; Van Wyk, Jan Aucamp; Morgan, Eric R. (Wiley, 2018-07)1. Transmission of parasites between host species affects host population dynamics, interspecific competition, and ecosystem structure and function. In areas where wild and domestic herbivores share grazing land, management ...
-
Van Wyk, Jan Aucamp (Agricultural Research Council, ARC-OVI and the University of Pretoria, 2008)In three trials conducted on two separate farms the production of sheep treated for naturally acquired haemonchosis using the FAMACHA© system of targeted selective treatment (TST) (i.e. to treat only those animals unable ...
-
Greer, Andrew W.; Van Wyk, Jan Aucamp; Hamie, Joseph C.; Byaruhanga, Charles; Kenyon, Fiona (Elsevier, 2020-03)• Refugia-based strategies are intended to help slow the development of anthelmintic resistance by leaving a population unexposed to a treatment. • Refugia can be supplied in several forms and through a variety of ...
-
Kenyon, F.; Greer, A.W.; Coles, G.C.; Cringoli, G.; Papadopoulos, E.; Cabaret, J.; Berrag, B.; Varady, M.; Van Wyk, Jan Aucamp; Thomas, E.; Vercruysse, J.; Jackson, F. (Elsevier, 2009)Anthelmintic resistance is recognised as a major problem affecting small ruminant production worldwide and now threatens the sustainability of many of these systems. One method that has been proposed to prolong the ...
-
Sotomaior, Cristina Santos; Rosalinski-Moraes, Fernanda; Da Costa, Alane Rayana Barbosa; Maia, Dhéri; Monteiro, Alda Lúcia Gomes; Van Wyk, Jan Aucamp (Elsevier, 2012-06)Sheep and goats are the species of farm animal with the highest growth rate in Paraná State. The main problems facing Paraná State flocks are gastrointestinal parasites and anthelmintic resistance. One of the newest resources ...
-
Panda, Sudhanshu S.; Terrill, Thomas H.; Mahapatra, Ajit K.; Kelly, Brian; Morgan, Eric R.; Van Wyk, Jan Aucamp (MDPI, 2020-09)Site-specific forage management (SSFM), comprising growth observation, impact assessment, and timely strategic response to small variations in sericea lespedeza (SL; Lespedeza cuneata (Dum-Cours.) G. Don) production, has ...
-
Reynecke, Dean Peter; Van Wyk, Jan Aucamp; Gummow, Bruce; Dorny, P.; Boomker, Jacob Diederik Frederik (Elsevier B.V., 2011-05)A previously developed multiple regression algorithm was used as the basis of a stochastic model to simulate worm burdens in sheep naturally infected with Haemonchus contortus over five consecutive Haemonchus seasons ...
-
Reynecke, Dean Peter; Van Wyk, Jan Aucamp; Gummow, Bruce; Dorny, P.; Boomker, Jacob Diederik Frederik (Elsevier, 2011-05)A validation study of the FAMACHA© system for clinical evaluation of anaemia due to Haemonchuscontortus was conducted on two commercial sheep farms in the summer rain fall region of South Africa. In this region, the ...
Now showing items 1-19 of 19