The Thai Journal of Veterinary Medicine


A survey on mosquito species was conducted once a month in a PRRS positive pig farm in Nakorn Pathom province from May 2004 to April 2005. The mosquito larvae were collected over an area within 1 km of the farm and adult females were captured while feeding on the pigs between 6 to 10 p.m. using oral aspirators. Out of a total of 91,840 mosquitoes, 3 genera and 6 species were identified Culex tritaeniorhynchus, Cx. gelidus, Mansonia uniformis, Ma. annulifera, Anopheles vagus and An. peditaeniatus with Culex tritaeniorhynchus (60-95.75%) predominant with Ma. annulifera found the least (0.02-0.05%). The mosquitoes larvae were Culex tritaeniorhynchus, Cx. gelidus, Anopheles vagus and An. peditaeniatus.

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