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  • Title: Parasites of South African wildlife. XIV. Helminths of nyalas (Tragelaphus angasii) in the Mkuzi Game Reserve, KwaZulu-Natal.
    Author: Boomker J, Booyse DG, Watermeyer R, De Villiers IL, Horak IG, Flamand JR.
    Journal: Onderstepoort J Vet Res; 1996 Dec; 63(4):265-71. PubMed ID: 9173357.
    Abstract:
    The helminthis of 58 nyalas (Tragelaphus angasil) culled in the Mkuzi Game Reserve, KwaZulu-Natal, during March 1991, and six culled during March 1994, were collected, identified and counted. Of these, an as yet undescribed Camelostrongylus sp., Cooperia hungl. an Onchocerca sp., Strongyloides papillosus and Moniezia benedeni are new parasite records. The individual nematode burdens of the antelope examined during March 1991 varied from one to 2327, and the total mean adult gastro-intestinal-nematode burden was 586. Those examined during March 1994 had burdens that varied from 322 to 1778, with a mean of 854. The two Camelostrongylus spp. were the most prevalent nematodes in the nyalas culled during 1991, while the trematode Cotylophoron jacksoni was most prevalent in those culled during 1994. The most numerous nematode in nyala calves during 1991 was a Cooperia rotundispiculum race, while the two Camelstrongylus 5pp. were most numerous in the adult and sub-adult nyalas from both surveys. No clear trends between rainfall and nematode burdens were evident, or was there any correlation between faecal nematode egg counts and nematode burdens. Contrary to what was observed in an earlier survey, female nyalas had larger nematode burdens than the males.
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