개심장사상충의 정기 출현성에 관한 정량적 분석

초록

Six dogs including 4 dogs living in different geographic locations of Kangwon province and 2 client-owned dogs were used to determine the periodicity of microfilariae of D. immitis using a trigonometric model. The calculated periodicity index was ranged from 25.6 to 95.5% with mean of 57.6%, and the estimated hour of peak was approximately 21:00hrs (range, 20:04-21:29hrs) and minimum counts at 09:00hrs (range, 08:04-09:29hrs). Correlation coefficient between the observed and the expected count from the model varies depending on dogs, ranging from 6.4 to 49.2%. Based on this study, the periodicity of microfilariae of D. immitis was considered as nocturnally sub-periodic for all dogs employed. This result is in consistent with previous report in peak hour but different in minimal hour, indicating that further studies on the periodicity need to be performed to better understanding the dynamics of the periodicity and to help practitioners in the choice of the time for examination of the dogs.

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