Publications

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observations on the histomorphology of sarcosporidian cysts of some east african game animals (artiodactyla).the histomorphology of formalin-fixed micro and macrosarcosporidian cysts of grant's, thomson's gazelle, impala, wildebeest, bubal hartebeest, cape eland, red duiker, kirk's dik-dik, defassa waterbuck, bohor reedbuck, african buffalo, giraffe, warthog, and giant forest hog is described. the wall of microsarcosporidian cysts is smooth and without villi or with villi. the villi are solid or of honeycomb-like structure on tangential sections. in some animals, microsarcosporidian cysts of almost the ...1975807047
yersiniosis in captive exotic mammals.within a 2 1/2-month period, yersinia pseudotuberculosis infection occurred in 3 blesbok (damaliscus dorcas), 1 dik-dik (madoqua kirkii), and 1 giant anteater (myrmecophaga tridactyla) at the national zoological park, washington, dc. lesions consisted of fibrinonecrotic enteritis and peritonitis, mesenteric lymphadenitis, and embolic pyogranulomatous lesions in the liver, spleen, and lungs. feed contaminated with the feces of wild rats and pigeons was thought to be the source of infection.1977336591
environmental constraints on the foraging behaviour of a dwarf antelope (madoqua kirkii).dik-diks (madoqua sp.) inhabit semi-arid regions and experience very different conditions of food availability and quality between wet and dry seasons. by comparing the behaviour of dik-diks between these two seasons, we identified environmental constraints affecting their feeding strategies. in both seasons foraging time was limited by high mid day temperatures. in the wet season a high intake rate compensates for the loss in foraging time, but in the dry season water and protein become limitin ...199528306883
the arterial circle of the brain, its branches and connections in selected representatives of the antilopinae.the arterial circle of the brain, that is, the circle of willis, and its branches in ruminants have been chiefly described in farm animals and only in selected wild species. in view of the deficit of information about this vascular region in numerous other species of the ruminantia, the arteries of the encephalic base were analyzed in five antelope species representing different genera of the bovidae, antilopinae. specimens of the following species were examined: springbuck (antidorcas marsupial ...201525694115
a new species of sucking louse (phthiraptera: anoplura: linognathidae) from günther's dikdik (madoqua guentheri) in kenya.linognathus samburi n. sp. is described from adult male and female specimens collected from a juvenile female günther's dikdik (madoqua guentheri) live-trapped near olturot village, samburu district (rift valley province) in northern kenya. the new species is distinguished from other species of linognathus including linognathus geigyi and linognathus damarensis, both of which parasitize kirk's dikdik (madoqua kirkii). a dichotomous key to the species of linognathus that are known to parasitize d ...201525394219
tuberculosis infection in wildlife from the ruaha ecosystem tanzania: implications for wildlife, domestic animals, and human health.mycobacterium bovis, a pathogen of conservation, livestock, and public health concern, was detected in eight species of wildlife inhabiting protected areas bordering endemic livestock grazing lands. we tested tissues from 179 opportunistically sampled hunter-killed, depredation, road-killed, and live-captured wild animals, representing 30 species, in and adjacent to ruaha national park in south-central tanzania. tissue culture and pcr were used to detect 12 (8.1%) m. bovis-infected animals and 1 ...201323601163
how muscle mass is part of the fabric of behavioral ecology in east african bovids (madoqua, gazella, damaliscus, hippotragus).tissue composition and the distribution of body mass are described for four genera of east african bovidae (madoqua, gazella, damaliscus, hippotragus) with supporting data from four others (neotragus, oryx, tragelaphus, connochaetes). these species are high in muscle mass, an adaptation convergent with other high-speed terrestrial cursors, bounders, and saltators. the segments below the elbow/cubitus and knee/stifle/genu joints in small bovids are both lighter in percent of total body mass (8.6% ...19979108204
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