Prevalence of Canine Gastrointestinal Helminths and Molecular Confirmation of Toxocara canis
DOI:
https://doi.org/10.48165/ijvsbt.21.4.16Keywords:
Canine gastrointestinal helminths, Polymerase chain reaction, Prevalence, Toxocara canisAbstract
The present study was carried out to assess the prevalence of various canine gastro-intestinal (GI) helminths in animal population and soil in and around Tirupati city of Andhra Pradesh (India), and to confirm Toxocara canis at molecular level through Polymerase Chain Reaction. A total of 196 faecal and 111 soil samples were collected and examined. The overall prevalence of canine GI helminths among animal population and soil was 54.08% and 41.44%, respectively. The faecal samples were confirmed with 4 canine GI nematodes, viz.,
Ancylostoma spp. (20.41%), Toxocara canis (16.84%), Strongyloides stercoralis (5.61%), Trichuris vulpis (3.06%) and, one canine GI cestode, viz., Dipylidium caninum (3.57%) and combinations of Ancylostoma spp., Toxocara canis, Strongyloides stercoralis (4.59%), while the soil samples had Toxocara canis (19.81%), Ancylostoma spp. (14.14%), Strongyloides stercoralis (5.40%) and Trichuris vulpis (1.80%). Location wise, the prevalence of soil transmitted canine GI helminths was the highest in public parks (46.60%) followed by veterinary dispensaries/ hospitals (44.40%), school grounds (40.00%) and temple surroundings (12.50%). The amplification of genomic DNA (extracted from adult worms and eggs of Toxocara canis) through PCR targeting the Internal Transcribed Spacer-2 region of ribosomal DNA and subsequent gel documentation exhibited a ~540 bp product confirming the Toxocara canis.
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