Browsing 1991 Onderstepoort Journal of Veterinary Research, Volume 58, 1991 by Author "Horak, Ivan Gerard"
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- Browsing 1991 Onderstepoort Journal of Veterinary Research, Volume 58, 1991 by Author
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Browsing 1991 Onderstepoort Journal of Veterinary Research, Volume 58, 1991 by Author "Horak, Ivan Gerard"
Now showing items 1-12 of 12
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Horak, Ivan Gerard; Braack, L.E.O.; Spickett, Arthur M.; Van Ark, H.; Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1991)Free-living ticks were collected by means of drag-sampling in 32 of the 35 landscape zones of the Kruger National Park during a period of 1 calendar month. Of the 18 199 specimens collected, 99,53% were larvae, 0,05% nymphs ...
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Horak, Ivan Gerard; Boomker, Jacob Diederik Frederik; Flamand, J.R.B.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Eighteen red duikers, Cephalophus natalensis, from the Charters Creek Nature Reserve and 2 from Fanies Island Nature Reserve were processed for arthropod parasite recovery. They harboured 8 species of ixodid ticks and 2 ...
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Horak, Ivan Gerard; Fourie, L.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)One hundred and seventeen scrub hares, Lepus saxatilis, were examined for ixodid ticks in various regions of the Cape Province. They were infested with 18 tick species and the seasonal abundances of the immature stages of ...
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Horak, Ivan Gerard; Williams, E.J.; Van Schalkwyk, P.C.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The tick burdens of 115 Merino sheep, slaughtered over a period of 15 consecutive months on a farm in the north-eastern Orange Free State, were determined. A total of 7 ixodid and 1 argasid tick species were recovered and ...
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Horak, Ivan Gerard; Fourie, L.J.; Novellie, P.A.; Williams, E.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Sixteen species of ixodid ticks were collected over varying periods of time from 6 species of ground-frequenting birds and 15 species of small and large mammals in the Mountain Zebra National Park, Karoo, Cape Province. ...
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Horak, Ivan Gerard; Braack, L.E.O.; Spickett, Arthur M.; Williams, E.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Seventy-six helmeted guineafowls (Numida meleagris) were shot in the Andries Vosloo Kudu Reserve and on an adjacent farm in the eastern Cape Province during the period May 1985 to January 1987 and their tick burdens ...
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Horak, Ivan Gerard; Knight, M.M.; Williams, E.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Two adult Angora goats were slaughtered each month for 24 consecutive months on a farm in Valley Bushveld in the eastern Cape Province. On the same farm 2 Angora goat kids were slaughtered each month for 2 consecutive years ...
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Boomker, Jacob Diederik Frederik; Horak, Ivan Gerard; Flamand, J.R.B.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The helminths of 77 nyala, Tragelaphus angasii, from 4 game reserves in Natal, were collected, counted and identified. Ten nematode species and 4 nematode genera, a trematode species and paramphistomes, and 2 cestode genera ...
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Boomker, Jacob Diederik Frederik; Horak, Ivan Gerard; Knight, M.M.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The helminths of 25 kudu, Tragelaphus strepsiceros, from 3 localities in the eastern Cape Province were collected, counted and identified. The majority of kudu harboured no worms, and the burdens of those infected were ...
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Boomker, Jacob Diederik Frederik; Horak, Ivan Gerard; Booyse, Dirk G.; Meyer, Santa; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Helminth and arthropod parasites were collected from 41 warthogs, Phacochoerus aethiopicus, in the Hoedspruit Nature Reserve, eastern Transvaal. This reserve consists of a military base, which is a restricted area and is ...
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Parasites of South African wildlife. X. Helminths of red duikers, Cephalophus natalensis, in Natal Boomker, Jacob Diederik Frederik; Horak, Ivan Gerard; Flamand, J.R.B.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The helminths of the following red duikers, Cephalophus natalensis, were examined: 24 from 3 game reserves in Natal and 1 that had originated from Charters Creek, Natal, shortly before it died in the National Zoological ...
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Horak, Ivan Gerard; Huchzermeyer, Fritz W.; Braack, L.E.O.; Penzhorn, Barend Louis; Earle, Roy A.; Bennett, Gordon F.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Bloodsmears were taken from separate groups of five helmeted guineafowls, Numida meleagris, shot at approximately monthly intervals at Skukuza and near Lower Sabie in the Kruger National Park during the period August 1988 ...
Now showing items 1-12 of 12