Upik Kesumawati Hadi, Susi Soviana, and Supriyono. 2010. The presence of mosquitoes and
its relation to cases of death on Dairy Cows in Pangalengan District of Bandung Regency. The first Congress of South East Asia Veterinary School Association, Bogor Indonesia 20-22 July 2010.
Mosquitoes are important vectors of disease on humans and animals. This study aims to determine the presence of mosquitoes and its relation to cases of death on dairy cows in Pangalengan District of Bandung Regency. Mosquitoes were collected at night in cows and around the cowsheds from 6:00 p.m. to 6:00 am using aspirators and light traps. Mosquitoes collected were processed in pinning then identified. Examination of blood smears were observed from 10 cows which weakened condition from the area of death cases occurred one week earlier. The results showed that in dairy cows and around the cage there were found several species of Anopheles mosquitoes (Anopheles vagus and A. maculatus), Aedes aegypti and several species of Culex sp, which were active biting at night from 18:00 to 21:00 hours. The results of blood examination indicated that all (100%) cows examined infected by blood parasites, i.e. 40% of cows infected with the Anaplasma sp, 20% by mixed infections of Anaplasma sp and Babesia sp, 30% of mixed infections between Theleria sp and Anaplasma sp, and 10% by infection with a mixture of Anaplasma sp, Theleria sp and Babesia sp. Mosquitoes were not proven as the cause of death during the incident although the population were high.
Key Word: Dairy Cow, Mosquito, Blood parasites, Pengalengan, Bandung