Browsing Research Articles (Equine Research Centre) by Issue Date

Browsing Research Articles (Equine Research Centre) by Issue Date

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  • The occurrence of dermatosparaxis in a commercial Drakensberger cattle herd in South Africa 
    Holm, D.E. (Dietmar Erik); Van Wilpe, Erna; Harper, Cindy Kim; Duncan, N.M. (Neil) (South African Veterinary Association, 2008-03)
    Dermatosparaxis is a heritable collagen dysplasia causing skin extensibility and fragility. In Belgian Blue cattle this mutation has been described as a 3 base pair (bp) change followed by a 17 bp deletion in the gene ...
  • Prevalence of serotype specific antibody to equine encephalosis virus in Thoroughbred yearlings in South Africa (1999-2004) 
    Howell, P.G.; Nurton, Jane P.; Nel, Daleen; Lourens, Carina W.; Guthrie, Alan John (Agricultural Research Council, ARC-OVI and the University of Pretoria, 2008-06)
    Cohorts of yearlings were sampled over a period of 6 years in a retrospective serological survey to establish the annual prevalence of serotype specific antibody to equine encephalosis virus on Thoroughbred stud farms ...
  • Molecular sexing of African rhinoceros 
    Peppin, Lindsay; McEwing, Ross; Ogden, Rob; Hermes, Robert; Harper, Cindy Kim; Guthrie, Alan John; Carvalho, Gary R. (Springer, 2009-04)
    We report the development of a fast and reliable PCR-based method for sex identification of African Rhinoceros (Ceratotherium simum and Diceros bicornis) that could easily be incorporated into fluorescent short tandem ...
  • Protective immunization of horses with a recombinant canarypox virus vectored vaccine co-expressing genes encoding the outer capsid proteins of African horse sickness virus 
    Guthrie, Alan John; Quan, Melvyn; Lourens, Carina W.; Audonnet, Jean-Christophe; Minke, Jules M.; Yao, Jiansheng; He, Ling; Nordgren, Robert; Gardner, Ian A.; MacLachlan, N.J. (James) (Elsevier, 2009-07)
    We describe the development and preliminary characterization of a recombinant canarypox virus vectored (ALVAC®) vaccine for protective immunization of equids against African horse sickness virus (AHSV) infection. Horses ...
  • Efficacy of furosemide for prevention of exercise-induced pulmonary hemorrhage in Thoroughbred racehorses 
    Hinchcliff, Kenneth W.; Morley, Paul S.; Guthrie, Alan John (American Veterinary Medical Association, 2009-07)
    OBJECTIVE: To evaluate the efficacy of furosemide for prevention of exercise-induced pulmonary hemorrhage (EIPH) in Thoroughbred racehorses under typical racing conditions. DESIGN: Randomized, placebo-controlled, blinded, ...
  • Analgesic effects of butorphanol tartrate and phenylbutazone administered alone and in combination in young horses undergoing routine castration 
    Sanz, Macarena G.; Sellon, Debra C.; Cary, Julie A.; Hines, Melissa T.; Farnsworth, Kelly D. (American Veterinary Medical Association, 2009-11)
    OBJECTIVE: To compare the analgesic efficacy of administration of butorphanol tartrate, phenylbutazone, or both drugs in combination in colts undergoing routine castration. DESIGN: Randomized controlled clinical ...
  • Annual ryegrass toxicity in thoroughbred horses in Ceres in the Western Cape Province, South Africa 
    Grewar, John Duncan; Allen, J.G.; Guthrie, Alan John (South African Veterinary Association, 2009-12)
    An outbreak of annual ryegrass toxicity occurred on a Thoroughbred stud in Ceres in the Western Cape Province of South Africa. This is the 1st report of annual ryegrass toxicity in horses in South Africa, although the ...
  • Re-emergence of bluetongue, African horse sickness, and other orbivirus diseases 
    MacLachlan, N.J. (James); Guthrie, Alan John (INRA / EDP Sciences, 2010-01)
    Arthropod-transmitted viruses (Arboviruses) are important causes of disease in humans and animals, and it is proposed that climate change will increase the distribution and severity of arboviral diseases. Orbiviruses are ...
  • Comparative genetics of sarcoid tumour-affected and non-affected mountain zebra (Equus zebra) populations 
    Sasidharan, Sooryakanth P.; Ludwig, Anette; Harper, Cindy Kim; Moodley, Yoshan; Bertschinger, Hendrik Jan; Guthrie, Alan John; Somers, Michael J. (Southern African Wildlife Management Association, 2011-04)
    In recent years, South African conservation officials have noted the appearance of sarcoid tumour-like growths in Cape mountain zebra (Equus zebra zebra) populations. In domestic horses (Equus ferus caballus), a genetic ...
  • Use of real-time quantitative reverse transcription polymerase chain reaction for the detection of African horse sickness virus replication in Culicoides imicola 
    Scheffer, Elizabeth G.; Venter, Gert Johannes; Joone, Christopher; Osterrieder, Nikolaus; Guthrie, Alan John (Agricultural Research Council, ARC-OVI and the University of Pretoria, 2011-11-11)
    Despite its important role as vector for African horse sickness virus (AHSV), very little information is available on the dissemination of this virus in Culicoides (Avaritia) imicola Kieffer (Diptera: Ceratopogonidae). ...
  • The combination of abundance and infection rates of Culicoides sonorensis estimates risk of subsequent bluetongue virus infection of sentinel cattle on California dairy farms 
    Mayo, Christie E.; Barker, Christopher M.; Mullens, Bradley A.; Gerry, Alec C.; Mertens, Peter P.C.; Maan, Sushila; Maan, Narender; Gardner, Ian A.; Guthrie, Alan John; MacLachlan, N.J. (James) (Elsevier, 2012-06)
    Bluetongue (BT) is an important viral disease of ruminants that is transmitted by hematophagous Culicoides midges. We examined the seasonal patterns of abundance and infection of Culicoides sonorensis at four dairy farms ...
  • Specifying and sustaining pigmentation patterns in domestic and wild cats 
    Kaelin, Christopher B.; Xu, Xiao; Hong, Lewis Z.; David, Victor A.; McGowan, Kelly A.; Schmidt-Küntzel, Anne; Roelke, Melody E.; Pino, Javier; Pontius, Joan; Cooper, Gregory M.; Manuel, Hermogenes; Swanson, William F.; Marker, Laurie; Harper, Cindy Kim; Van Dyk, Ann; Yue, Bisong; Mullikin, James C.; Warren, Wesley C.; Eizirik, Eduardo; Kos, Lidia; O’Brien, Stephen J.; Barsh, Gregory S.; Menotti-Raymond, Marilyn (American Association for the Advancement of Science, 2012-09)
    Color markings among felid species display both a remarkable diversity and a common underlying periodicity. A similar range of patterns within domestic cats suggests a conserved mechanism whose appearance can be altered ...
  • Re-emergence of the apicomplexan Theileria equi in the United States : elimination of persistent infection and transmission risk 
    Ueti, Massaro W.; Mealey, Robert H.; Kappmeyer, Lowell S.; White, Stephen N.; Kumpula-McWhirter, Nancy; Pelzel, Angela M.; Grause, Juanita F.; Bunn, Thomas O.; Schwartz, Andy; Traub-Dargatz, Josie L.; Hendrickson, Amy; Espy, Benjamin; Guthrie, Alan John; Fowler, W. Kent; Knowles, Donald P. (Public Library of Science, 2012-09-06)
    Arthropod-borne apicomplexan pathogens that cause asymptomatic persistent infections present a significant challenge due to their life-long transmission potential. Although anti-microbials have been used to ameliorate ...
  • A PCR-based screening program to assess the prevalence of Taylorella equigenitalis in breeding stallions in South Africa 
    Schulman, M.L. (Martin); May, Catherine Edith; Joone, C.J. (Carolynne); Monyai, Mpho S.; Gerstenberg, C.; Naidoo, R.; Pienaar, J.; Guthrie, Alan John (Elsevier, 2012-11)
    The first outbreak of Contagious Equine Metritis (CEM) due to Taylorella equigenitalis in South Africa was reported to the OIE in May 2011 subsequent to importation of a stallion, the index case. Two additional positive ...
  • Equine piroplasmosis treatment protocols : specific effect on orocaecal transit time as measured by the lactose C-13-ureide breath test 
    Kutscha, J.; Sutton, D.G.M.; Preston, T.; Guthrie, Alan John (Wiley-Blackwell, 2012-11-27)
    Reasons for performing study: Imidocarb dipropionate is the drug of choice for equine piroplasmosis, but its administration causes severe colic and diarrhoea. An imidocarb protocol that reduces these signs is ...
  • Diagnostic accuracy of a duplex real-time reverse transcription quantitative PCR assay for detection of African horse sickness virus 
    Guthrie, Alan John; MacLachlan, N.J. (James); Joone, Christopher; Lourens, Carina W.; Weyer, Camilla Theresa; Quan, Melvyn; Monyai, Mpho S.; Gardner, Ian A. (Elsevier, 2013)
    Blood samples collected from 503 suspect cases of African horse sickness (AHS) and another 503 from uninfected, unvaccinated South African horses, as well as 98 samples from horses from an AHS free country, were tested ...
  • African horse sickness in naturally infected, immunised horses 
    Weyer, Camilla Theresa; Quan, Melvyn; Joone, Christopher; Lourens, Carina W.; MacLachlan, N.J. (James); Guthrie, Alan John (Wiley-Blackwell, 2013-01)
    To determine whether subclinical cases, together with clinical cases, of African horse sickness (AHS) occur in immunised horses in field conditions, whole blood samples were collected and rectal temperatures recorded ...
  • Reversibility of the effects of GnRH-vaccination used to suppress reproductive function in mares 
    Schulman, M.L. (Martin); Botha, A.E.; Muenscher, Stefanie B.; Annandale, Cornelius Henry; Guthrie, Alan John; Bertschinger, Hendrik Jan (Wiley-Blackwell, 2013-01)
    Reasons for performing study: Active immunisation against gonadotrophin-releasing hormone (GnRH) provides a reversible method for control of oestrous behaviour and fertility in mares. Previous reports failed to demonstrate ...
  • Conserving large carnivores : dollars and fence 
    Packer, C.; Loveridge, A.; Canney, S.; Caro, T.; Garnett, S.T.; Pfeifer, Marion; Zander, K.K.; Swanson, A.; MacNulty, D.; Balme, Guy Andrew; Bauer, H.; Begg, C.M.; Begg, K.S.; Bhalla, S.; Bissett, C.; Bodasing, T.; Brink, H.; Burger, A.; Burton, A.C.; Clegg, B.; Dell, S.; Delsink, Audrey K.; Dickerson, T.; Dloniak, S.M.; Druce, D.; Frank, L.; Funston, Paul J.; Gichohi, N.; Groom, R.J. (Rosemary); Hanekom, C.; Heath, B.; Hunter, Luke T.B.; De Iongh, Hans H.; Joubert, C.J.; Kasiki, S.M.; Kissui, B.; Knocker, W.; Leathem, B.; Lindsey, Peter Andrew; MacLennan, S.D.; McNutt, J.W.; Miller, Susan M.; Naylor, S.; Nel, P.; Ngweno, C.; Nicholls, K.; Ogutu, Joseph O.; Okot-Omoya, E.; Patterson, B.D.; Plumptre, A.; Salerno, J.; Skinner, K.; Slotow, Robert; Sogbohossou, E.A.; Stratford, K.J.; Winterbach, Christiaan W.; Winterbach, Hanlie Evelyn Kathleen; Polasky, S. (Wiley-Blackwell, 2013-05)
    Conservationists often advocate for landscape approaches to wildlife management while others argue for physical separation between protected species and human communities, but direct empirical comparisons of these alternatives ...
  • Descriptive epidemiology of African horse sickness in Zimbabwe 
    Gordon, Stuart; Bolwell, Charlotte; Rogers, Chris; Guthrie, Alan John; Magunda, Forgivemore; Hove, Petronella (AOSIS Open Journals, 2013-05-24)
    A study of the prevalence of African horse sickness in horses was conducted, using records from two private equine practices in Harare for the period 1998–2004. Results indicated a higher prevalence of the disease in ...