Prevalence of gastrointestinal parasites in domestic pigs collected from Cheyyar Taluk, Thiruvannamalai district

A total of 50 gastrointestinal tract of domestic pigs were collected in and around Cheyyar taluk, Thiruvannamalai District. The work carried was out for six months from February 2016 to July 2016.Parasitological examination of intestinal tract revealed the presence of helminth parasites and protozoans. Out 50 domestic pigs, 48 (96%) pigs were infected with trematode, cestode, nematode and protozoans. Out 48 domestic pigs 20 were young pigs (below 1 year) and 28 were adult pigs (above 1 year old).Out 48 infected pigs 13 types of parasites were identified using standard procedure. Among identified 13 types of endoparasites, six species were nematodes such as Ascaris suum (6.25%), Strongyloides spp (8.33%), Trichuris suis (6.25%), Oesophagostomum spp (4.16%), Ancylostoma spp(8.33%) and Hyostrongylus rubidus (4.16%).Next to nematodes, 3 species of trematodes have been identified, they are Fasciolopsis buski (12.5%), Dicrocoelium spp (6.25%) and Schistosoma suis (10.41%).Three species of protozoan parasites have also been identified in the gastrointestinal tract of domestic pigs. They are Eimeria spp (2.08%), Isospora suis (2.08%) and Balantidium coli (2.08%).Only one species of cestode have been documented in the G I tract of domestic pigs that is Monizia expansa (4.16%).Five pigs showed (10.41%) mixed endoparasitic infection (Trematode + Cestode). Three pigs showed (6.25%) both trematode and nematode parasitic infection. Another 3 domestic pigs (6.25%) showed nematode and cestode infection. Only one domestic pig showed (2.08%) combination of three helminth parasites such as trematode, cestode and nematode infection. Three species of protozoans were identified in the gastrointestinal tract of domestic pigs. Only one pig showed the mixed infection of protozoan parasites.