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«“√ “√ √“™∫— ≥±‘ µ¬ ∂“π ªï ∑’Ë Û ©∫— ∫∑’Ë Ù µ.§.-∏.§. ÚıÙ¯ 995 π‘ ¿“ ®√Ÿ ≠‡« ¡å Month Total weight of Total no. of Total no. of Average no. of Average no. of And year eel livers (g) eel livers larvae recovered larvae/g liver larvae/liver December 677.8 986 2,807 3.80 2.62 January 1997 1,632.6 983 434 0.25 0.45 February 2,905.5 1,571 474 0.18 0.32 March 2,760.7 1,330 87 0.04 0.07 April 404.6 71 8 0.02 0.11 May 1,739.1 1,844 485 0.40 0.34 Total 18,561.1 15,264 12,278 0.91 0.94 [¢â Õ¡Ÿ ≈®“° The Journal of Tropical Medicine and Parasitology , Vol.29 (No.1) March 1998] √ÿ ª‰¥â «à “ ‡√‘Ë ¡ƒ¥Ÿ Ωπ®πÀ¡¥ƒ¥Ÿ ®–¡’ 欓∏‘ ¡“° ·≈–πâ Õ¬≈߇¡◊Ë Õ‡√‘Ë ¡À𓫉ª®π∂÷ ߃¥Ÿ √â Õπ ‰¥â ¡’ ºŸâ ”√«®Õÿ ®®“√–¢Õß ÿ π— ¢ ·≈–·¡«¥— ßµ“√“ß∑’Ë ˜ ·≈– ¯ µ“√“ß∑’Ë ˜ · ¥ß§«“¡™ÿ °¢Õß G. spinigerum „π ÿ π— ¢„πª√–‡∑»‰∑¬ ÒÚ Year Specimen Location No. examined % positive Authors 1933 stomach Bangkok 5 100 Prommas & Daengsvang 1962 feces + stomach Bangkok & Thon Buri 1,000 1.6 Sirisumpan 1962 stomach Bangkok 100 10.0 Ito et al 1964 stomach Bangkok 1,048 5.2 Daengsvang et al 1965-70 stomach; feces Bangkok & other 17,855; 277 1.1 Daengsvang 1969 feces Bangkok 2,599 6 Manning et al 1980 feces Bangkok 107 2.8 Hinz 1983 feces North & Northeast 941 30.0 Impand et al 1987-9 stomach Northeastern 2,940 4.1 Maleewong et al 1998 stomach Bangkok 200 0 Rojekittikhun et al 2000 fecal sample Nakhon Nayok 1,193 1.2 Rojekittikhun et al 2000-1 fecal sample Prachin Buri 324 0 Rojekittikhun et al 2001-2 fecal sample Bangkok 518 0 Rojekittikhun et al