This study documented the effect on the productivity of Dorper-Merino cross ewes when they became infected with Cowdria ruminantium as would occur in an endemically stable state. A flock of 152 breeding ewes was randomly divided into two matched groups. One group was infected on multiple occasion...
Martínez, T.A.
,
Meltzer, M.I.
,
Perry, Brian D.
,
Burridge, M.J.
,
Mahan, S.M.
,
[The effect of subclinical experimental Cowdria ruminantium infection on the health and reproductive performance of breeding ewes]
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The effect of subclinical experimental Cowdria ruminantium infection on the health and reproductive performance of breeding ewes
A postal questionnaire asking for data concerning heartwater deaths was sent to all large-scale commercial farmers in Zimbabwe's lowveld, where heartwater is endemic. One hundred and fifty returns (24 percent return rate) provided usable data, with 85 farms (57 percent of sample) reporting heartw...
Meltzer, M.I.
,
Perry, Brian D.
,
Donachie, P.L.
,
[Mortality percentages related to heartwater and the economic impact of heartwater disease on large-scale commercial farms in Zimbabwe]
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Mortality percentages related to heartwater and the economic impact of heartwater disease on large-scale commercial farms in Zimbabwe
Norval, R.A.I.
,
Perry, Brian D.
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Meltzer, M.I.
,
[Factors affecting the distribution of the ticks Amblyomma hebraeum and Amblyomma variegatum in Zimbabwe. Implication of reduced acaricide usage]
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Factors affecting the distribution of the ticks Amblyomma hebraeum and Amblyomma variegatum in Zimbabwe. Implication of reduced acaricide usage
An alternative control option for heartwater (Cowdria ruminatium infection) is the establishment and maintenance of endemic stability which would lessen the existing dependence on acaricides. In an endemically stable state, animals become infected by vaccination or natural challenge at an early a...
Martínez, T.A.
,
Meltzer, M.I.
,
Perry, Brian D.
,
Burridge, M.J.
,
Mahan, S.M.
,
[The effect of subclinical experimental Cowdria ruminantium infection in ewes on the growth and milk consumption of pre-weaning lambs]
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The effect of subclinical experimental Cowdria ruminantium infection in ewes on the growth and milk consumption of pre-weaning lambs
Knobel, D.L.
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Cleaveland, S.
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Coleman, P.G.
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Fèvre, Eric M.
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Meltzer, M.I.
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Miranda, M.E.
,
[Re-evaluating the burden of rabies in Africa and Asia]
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Re-evaluating the burden of rabies in Africa and Asia