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  • Title: Nodular abomasitis in impala (Aepyceros melampus) caused by the nematode Longistrongylus sabie.
    Author: Pletcher JM, Horak IG, de Vos V, Boomker J.
    Journal: J Parasitol; 1984 Dec; 70(6):907-10. PubMed ID: 6527186.
    Abstract:
    The periodic occurrence of nodular abomasitis associated with the trichostrongylid nematode Longistrongylus sabie was observed in impala lambs of the Kruger National Park, Republic of South Africa. The condition was seen predominantly in animals less than 1 yr of age. Peak incidences occurred in the spring and fall, when more than 50% of the lambs studied had from several to numerous nodules in their abomasal mucosae. The nodular lesions in the lambs were macroscopically larger than, but microscopically similar to, those observed in domestic ruminants with ostertagiosis; however, L. sabie worm burdens were much lower than those in clinical cases of ostertagiosis, and no evidence of diarrhea could be found in any of the lambs studied. The physical condition of lambs with moderate to severe nodular abomasitis did not differ noticeably from that of lambs with mild involvement or those without lesions. Nodular abomasitis caused by this parasite was of minimal significance to impala herds in the Park under the circumstances prevailing at the time of the study.
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