全南地方 育成豚의 穿孔疥癬蟲症 調査

Survey of sarcoptes scabiei var. suis infedstation in fattening pigs in Chonnam area

Infestation with Sarcoptes scabiei var. suis of 516 fatteners of 2~3 months old selected randomly from 3 intensive swine farms in Chonnam area were investigated from May, 1989 to August, 1990. In addition, blood chemical values and histopathological changes were also examined from the pigs which had been confirmed to be infected with Sarcoptes scabiei var. suis. The results obtained are summarized as follows ; 1. It was observed that 141(27.32%) out of 516 pigs observed were infested with Sarcoptes scabiei var. suis. Prevalence of the infestation in 3 intensive farms was 32.95% in Yongkwang, 24.44% in Suncheon and 24.38% in Muan, respectively. 2. Seasonal prevalence was found to be significantly (p＜0.05) higher in spring and winter than in summer and autumn. 3. Blood chemical values revealed that blood glucose level was significantly (p＜0.01) higher in pigs infected with Sarcoptes scabiei var. suis than in noninfected pjgs. On the contrary, blood area nitrogen(BUN) cholesterol level were lower in infected pigs than in noninfected pigs. 4. Major histopathological findings of the skin lesions of the infected pigs were acanthosis, spongiosis in epidermis and infiltration of inflammatory cells and edema in dermis.