| parasites of domestic and wild animals in south africa. ix. helminths in blesbok. | four blesbok culled in the rietvlei nature reserve during may 1972 were each infested with trichostrongylus axei and impalaia nudicollis. some of these animals also harboured haemonchus bedfordi, haemonchus contortus, trichostrongylus falculatus, skrjabinema alata and avitellina centripunctata. thirty-two blesbok were culled in pairs at approximately 4-5 week-intervals in the percy fyfe nature reserve from july 1972 to november 1973. adult h. contortus were recovered in fair numbers from buck sl ... | 1978 | 714392 |