Heartwater, transmitted by Amblyomma spp., is considered one of the most important tick-borne diseases of cattle, goats and sheep in southern Africa, causing considerable losses through mortality and control costs. In support of a project developing a new inactivated vaccine, we have undertaken, ...
Minjauw, B.
,
Perry, Brian D.
,
Randolph, Thomas F.
,
McDermott, John J.
,
Kruska, R.L.
,
[Identification of circumstances in which heartwater has a major economic impact for the livestock industry in Southern Africa]
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Identification of circumstances in which heartwater has a major economic impact for the livestock industry in Southern Africa
Perry, Brian D.
,
Sones, Keith R.
,
[Global roadmap for improving the tools to control foot-and-mouth disease in endemic settings. Report of a workshop]
,
Global roadmap for improving the tools to control foot-and-mouth disease in endemic settings. Report of a workshop
Perry, Brian D.
,
Randolph, Thomas F.
,
Omore, Amos O.
,
Perera, O.
,
Vatta, A.
,
[Improving the health of livestock kept by the resource-poor in developing countries.]
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Improving the health of livestock kept by the resource-poor in developing countries.
Lessard, P.
,
L'Eplattenier, R.
,
Norval, R.A.I.
,
Perry, Brian D.
,
Dolan, T.T.
,
Burrill, A.
,
Croze, H.
,
Sorensen, M.
,
Grootenhuis, J.G.
,
Irvin, A.D.
,
[Geographical information systems in the estimation of East Coast fever risk to African livestock]
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Geographical information systems in the estimation of East Coast fever risk to African livestock
Heartwater, a disease of ruminants caused by the rickettsia Cowdria ruminantium and transmitted by ticks of the genus Amblyomma, is a significant cause of productivity losses in cattle, sheep and goats in most of sub-Saharan Africa. In southern Africa, the vector of C. ruminantium is A. hebraeum....
Perry, Brian D.
,
Chamboko, Tafireyi
,
Mahan, S.
,
Medley, G.F.
,
Mukhebi, A.W.
,
O'Callaghan, C.J.
,
Peter, T.F.
,
[A study of the effects of heartwater and its control on livestock productivity and economics in Zimbabwe]
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A study of the effects of heartwater and its control on livestock productivity and economics in Zimbabwe
In order to assess the economic impact of heartwater (Cowdria ruminantium infection) and model the impact of improved vaccines against the disease, a field study was conducted to provide data on livestock productivity indicators in Zimbabwe. Cross-sectional studies were performed in the two main ...
Chamboko, Tafireyi
,
Mukhebi, A.W.
,
O'Callaghan, C.J.
,
Peter, T.F.
,
Kruska, R.L.
,
Medley, G.F.
,
Mahan, S.M.
,
Perry, Brian D.
,
[Heartwater and the economics of livestock production on large scale commercial and smallholder farms in Zimbabwe]
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Heartwater and the economics of livestock production on large scale commercial and smallholder farms in Zimbabwe
The tick vectors of heartwater (Cowdria ruminantium infection) in Zimbabwe, Amblyomma hebraeum and Amblyomma variegatum, historically were believed to be confined to the low-lying regions of the south and north-west of the country. However, country-wide surveys performed in 1975-1980 and 1988-199...
Peter, T.F.
,
Perry, Brian D.
,
O'Callaghan, C.J.
,
Medley, G.F.
,
Shumba, W.
,
Madzima, W.
,
Burridge, M.J.
,
Mahan, S.M.
,
[Distributions of the vectors of heartwater, Amblyomma hebraeum and amblyomma variegatum (Acari: Ixodidae), in Zimbabwe]
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Distributions of the vectors of heartwater, Amblyomma hebraeum and amblyomma variegatum (Acari: Ixodidae), in Zimbabwe
Perry, Brian D.
,
[Opportunities and challenges for poverty reduction in Africa through livestock]
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Opportunities and challenges for poverty reduction in Africa through livestock
Rich, Karl M.
,
Moyo, Siboniso
,
Perry, Brian D.
,
Freeman, H.A.
,
[New challenges, new responsibilities: the role of government in promoting agriculture, livestock, and rural development in Namibia]
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New challenges, new responsibilities: the role of government in promoting agriculture, livestock, and rural development in Namibia
Kruska, R.L.
,
Reid, Robin S.
,
Thornton, Philip K.
,
Perry, Brian D.
,
[Spatial data characterization of livestock production systems in Africa]
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Spatial data characterization of livestock production systems in Africa