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| Cumming, Graeme S.; Percy FitzPatrick Institute, DST/NRF Center of Excellence, University of Cape Town, Rondebosch, 7701, South Africa; graeme.cumming@uct.ac.za; Hockey, Philip A. R.; Percy FitzPatrick Institute, DST/NRF Center of Excellence, University of Cape Town, Rondebosch, 7701, South Africa; phil.hockey@uct.ac.za; Bruinzeel, Leo W.; Percy FitzPatrick Institute, DST/NRF Center of Excellence, University of Cape Town, Rondebosch, 7701, South Africa; lbruinze@adu.uct.ac.za; Du Plessis, Morne A.; Percy FitzPatrick Institute, DST/NRF Center of Excellence, University of Cape Town, Rondebosch, 7701, South Africa; mornedup@vodamail.co.za. |
| Global analyses of the potential for avian influenza transmission by wild birds have ignored key characteristics of the southern African avifauna. Although southern Africa hosts a variety of migratory, Holarctic-breeding wading birds and shorebirds, the documented prevalence of avian influenza in these species is low. The primary natural carriers of influenza viruses in the northern hemisphere are the anatids, i.e., ducks. In contrast to Palearctic-breeding species, most southern African anatids do not undertake predictable annual migrations and do not follow migratory flyways. Here we present a simple, spatially explicit risk analysis for avian influenza transmission by wild ducks in southern Africa. We developed a risk value for each of 16 southern... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Anatidae; Avian influenza; Botswana; Ducks; Influenza; Landscape ecology; Namibia; Pathogen; South Africa; Virus; Waterfowl; Zimbabwe.. |
| Ano: 2008 |
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| AbouLaila, M; El-Bahy, N; Hilali, M; Yokoyama, N; Igarashi, I; 横山, 直明; 五十嵐, 郁男. |
| This study of enteric parasites of ducks was undertaken to determine their prevalence and the relationships between their prevalence and the age and breed of ducks in the Behera governorate, Egypt. A total of 110 ducks of different ages and breeds were examined. The prevalence of helminths was 4.54% from which the prevalence of nematode, cestode, and trematode infections was 2.72%, 3.63%, and 1.81%, respectively. The recovered nematodes were Ascaridia galli (0.9%) and Heterakis gallinarum (1.81%). The reported trematodes were Echinoparyphium recurvatum (0.9%) and Echinoparyphium paraulum (1.81%). The new reported cestodes were Cladogynia phoeniconaiadis (3.63%), Echinolepis carioca (3.63%), and Baerfainia anoplocephaloides (3.63%). The helminths infections... |
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Palavras-chave: Ducks; Enteric parasites; Egypt. |
| Ano: 2011 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3125 |
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| AbouLaila, M; El-Bahy, N; Hilali, M; Yokoyama, N; Igarashi, I; 横山, 直明; 五十嵐, 郁男. |
| Toxoplasma gondii is an important zoonotic parasite. The diagnosis of infection in animals is an important tool to prevent human infection. In the present study, Toxoplasma gondii was diagnosed by using the modified agglutination test (MAT) in ducks from Behera Governorate, Egypt. The prevalence of Toxoplasma gondii was 13.9%. The prevalence of Toxoplasma gondii was the highest in the Native breed (17.65%) and in 6-8-months age group (19.4%). End-point titer of 1:25, 1:50, and 1:100 were recorded in 61.9%, 19.05%, and 19.05% of the positive samples, respectively. Duck meat is one source of the Toxoplasma gondii infection for human in Egypt. |
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Palavras-chave: Toxoplasma gondii; Modified agglutination test (MAT); Ducks; Egypt. |
| Ano: 2011 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3128 |
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| Wang,Y; Zhang,H; Gu,C; Cheng,G; Zhang,W; Mehmood,K; Hu,X. |
| ABSTRACT Newcastle disease is a highly contagious disease responsible for major outbreaks and considerable economic losses in the poultry industry in China. There is still little information available regarding gene characterization of the NDV, especially in ducks and pigeons. Therefore, the aim of this study was to investigate NDV isolated from ducks and pigeons in Hubei, China. In this study, three NDVs from ducks and pigeons were isolated between 2013 and 2015.The fusion protein (F) gene of the NDV isolates was sequenced and phylogenetically analyzed. The clinical signs and gross histopathological lesions were examined. Phylogenetic analysis of these strains indicated that all the sequences are classified as genotype II. The isolates shared a 112... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Newcastle disease virus; Phylogenetic analysis; Pathology; Ducks; Pigeons.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100145 |
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