Oesophagostomum Spp Research Articles

Clinical case report of oesophagostomiasis in captive Hamadryas Baboon (Papio Hamadryas) in Ethiopia

Oesophagostomum spp is a nodule causing nematode found in livestock and primate species in Sub-Saharan Africa. The L3 infectious larvae invade the colonic wall, forming nodules in which the larvae continue their development. It can be a serious zoonotic risk in some areas in Africa. Primates are natural hosts for the parasite and do in general not show any symptoms. We present here a clinical case of Oesophagostomiasis in a captive hamadryas baboon (Papiohamadryas) in Ethiopia who died of acute peritonitis as a result of the infection with the parasite. Post-mortem was performed and colon tissue analyzed by cytology. This case highlights the importance of Oesophagostomiasis in captive baboons that undergo stress full events and the need for adequate management.Keywords: PapioHamadryas, Oesophagostomiasis, Ethiopia

Necrotic enteritis of pigs as a sequel to infection with Oesophagostomum spp.

Necrotic enteritis of pigs as a sequel to infection with Oesophagostomum spp.

豚におけるMethyridideの駆虫効果

The effects of Promintic, an injection formula of methyridine, on swine nematodes were evaluated in field trials involving 106 swine.In the case of Trichuris suis, excellent results were obtained with a dose of 100 mg/kg, which is lower than the effective dose reported in the preceding paper. In addition, nearly comparable efficacy was confirmed with so low a dose of 50 mg/kg. In the case of Strongyloides ransomi, the effective dose level of 150mg/kg, as reported in the preceding paper, was able to be substantiated. As shown in the preceding paper, however, the efficacy against Ascaris suum was low, and little efficacy was proved against Oesophagostomum spp. A markedly reduced egg count of Metastrongylus apri was observed with a dose of 250mg/kg or higher, as shown in natural cases in the preceding paper. When a dose of 300 mg/kg or lower, as divided into two equal aliquots, was injected subcutaneously at the areas posterior to both ears, the resulting systemic and local reactions were mild in general.