Publications

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free-range village chickens on the accra plains, ghana: their husbandry and productivity.a cross-sectional[4pc] survey investigating husbandry and productivity of free-range village chickens was carried out in four administrative districts within 60 km of accra. responses were provided by 101 men and 99 women. the mean (sd) household flock size was 28.7 (25.97) and the median was 20. the factors included in the final model investigating variance in flock size were sex of the respondent (p = 0.011), administrative area (p = 0.004), the numbers of members in the household (p = 0.017) ...200616986771
ehrlichia ruminantium seroprevalence in domestic ruminants in ghana; i. longitudinal survey in the greater accra region.serum samples collected monthly over a 34-month period from cattle, sheep and goats in the greater accra region of ghana were tested for antibodies to ehrlichia (previously cowdria) ruminantium, the causative agent of heartwater, by polyclonal competitive elisa (pc-elisa). maternal antibodies, detected in about half of animals followed from under 1 month old, declined to negative levels within 2-4 months. amblyomma variegatum tick vectors were present on livestock in rural areas throughout the y ...200415145496
heartwater in ghana: implications for control of ticks.heartwater, an often fatal rickettsial disease of domestic ruminants transmitted by amblyomma variegatum ticks, ranks with the a. variegatum-associated skin disease dermatophilosis as a major constraint to the upgrading of livestock productivity in ghana. an epidemiological survey, using new diagnostic tests, is being carried out to determine the incidence and distribution of heartwater and other tickborne diseases in ghanaian cattle, sheep and goats. preliminary results from a longitudinal surv ...19968809994
supernumerary teats in ghanaian livestock. i. sheep and goats.in 1068 sheep of the forest type, the sudan type, the nungua black head type and their crosses, and in 145 doses of the west african dwarf breed in locations near legon/accra, the udders were studied for the occurrence of supernumerary teats. in sheep a frequency of 4.3% was found, in goats of 29.7%. in sheep and goats the supernumerary teats were always cranial to the main teats, and they were found more often on the left half of the udders than on the right half. because of the high heritabili ...19827092787
incidence and prevalence of tick-borne haemoparasites in domestic ruminants in ghana.giemsa-stained thin blood smears prepared monthly from cattle, sheep and goats in the greater accra region of ghana between may 1994 and december 1996 were examined for presence of tick-borne haemoparasites. the majority of animals were less than 2 months old at the start of the survey. monthly and cumulative incidences are presented of anaplasma sp., babesia bigemina, borrelia sp., eperythrozoon sp., theileria mutans and theileria velifera in cattle, anaplasma sp., borrelia sp., and theileria s ...200415350659
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