Efficacy of different treatment regimes against setariosis (Setaria tundra, Nematoda: Filarioidea) and associated peritonitis in reindeer

摘要: When a severe peritonitis outbreak in semi-domesticated reindeer was noticed 2003 Finland, the concerned industry urged immediate preventive actions order to avoid detrimental effects of S. tundra and further economical losses. A research programme swiftly initiated study its impact on health wellbeing reindeer. The ultimate aim this test efficacy different treatment regimes against associated timing trials planned be compatible with annual rhythm management; (1) calves midsummer, during routine calf ear marking, ivermectin injection prophylaxis deltamethrin pour-on solution as repellent insect vectors, (2) infected early autumn injection, (3) breeding winter. results were assessed using post mortem inspection data detection. Finally, evaluate population level influence (late autumn-winter) transmission dynamics tundra, questionnaire survey conducted. In autumn, efficient midsummer had slight negative degree positive fat layer, but none. Ivermectin adult smf. All herding cooperatives answered it appeared that antiparasitic intense period, when 64–90% animals treated. southern part Finnish husbandry area, oral administration commonly used. Autumn, lesser summer, injectable resulted decreased severity perihepatitis due setariosis. case necessity for animal welfare reasons, round ups should considered. On level, massive routinely applied treatments can improve decrease mortality number carriers could not prevent movement expansion North.