Background: Zoonotic gastrointestinal parasites of dogs are of the global problem particularly in the developing countries. Dogs are the most common pet animals worldwide and have been reported to be hosts of many intestinal parasites of zoonotic importance globally. In Nigeria, gastrointestinal helminthes of dogs is currently endemic in 20 of the 36 states.

Aim: In general, dogs are the closest animals to humans and for that reason we decided to carry out a survey study to check the incidence of these parasites in dogs and to ascertain the level of environmental contamination in the study area.

Materials and Methods: Fecal samples were collected from dog patients presented to small animal clinic of Veterinary Teaching Hospital of Faculty of Veterinary Medicine, Ahmadu Bello University Zaria, dog's fecal droppings from the streets, and residential Quarters of the University and gastrointestinal tracts (GIT) of dogs from dogs slaughtering house at Basawa Barrack, Zaria. Three methods were used in the analysis of the samples; simple flotation, sedimentation, and GIT processing methods within 48 h of collection.

Results: Out of 224 samples analyzed 76(33.9%) were positive of at least one of the parasites. Of the 101 samples from streets and residential quarters of ABU, Zaria, Isospora spp. 12(11.9%) recorded the highest prevalence rate followed by Taenia spp. 6(5.9%), then Toxocara canis, Ancylostoma caninum, and Dipylidium caninum were 5.0%, 4.0%, and 1.0%, respectively. Isospora spp. (19.0%) recorded the highest prevalence rate for the 100 samples collected from small animal clinic. Other parasites encountered were T. canis (8.0%), A. caninum (8.0%) and Taenia spp. (5.0%). Parasites observed from the 23 gastrointestinal contents from "dog slaughtered houses" were T. canis (17.3%), Isospora spp.(13.1%) and A. caninum (4.3).

Conclusion: The study revealed that zoonotic gastrointestinal parasites of dogs are endemic in Zaria and the general public in the area are at high risk of being infected with these parasites.However, there are no statistically significant differences in the level of zoonotic parasitic infestation in the three sample sites at p<0.05.

Keywords: dog, gastrointestinal, helminthes, parasite, zoonosis

1. Uwemedimo E, Akinola O, Dimitrios-Alexios KV, Eniola A, Franca O,Sunday I, et al. Bayesian geostatistical model-based estimates of geospatial distribution of soil transmittedhelminthiasis and albendazole treatment requirements in Nigeria. 13th International Congress of Parasitology 2014. August 10th-15th, 2014, Mexico.

2. Schantz PM. Zoonotic parasitic infections contracted from dogs and cats: How frequent are they? 2007. http://www.capcvet.org. Accessed on 03-07-2015.

3. Satyal RC, Manandhar S, Dhakal S, Pandeya YR, Mahato BR, Chaulagain S, et al. Prevalence of gastrointestinal zoonotic helminthes in dogs of Kathmandu, Nepal. Int J Infect Microbiol 2013;2:91-4. [Crossref]

4. Degefu H, Tefera A, Yohannes M. Zoonotic helminth parasites in faecal samples of household dogs in Jimma town, Ethiopia. J PublicHealth Epidemiol 2011;3:138-43.

5. Karrar ZA, Rahim FA. Prevalence and risk factors of parasitic infections among under-five Sudanese children: A community based study. East Afr Med J 1995;72:103-9. [PubMed]

6. Robertson ID, Irwin PJ, Lymbery AJ, Thompson RC. The role of companion animals in the emergence of parasitic zoonoses. Int J Parasitol 2000;30:1369-77. [Crossref]

7. Abere T, Bogale B, Melaku A. Gastrointestinal helminth parasites of pet and stray dogs as a potential risk for human health in Bahir Dar Town, North-Western Ethiopia. Vet World 2013;6:388-92. [Crossref]

8. Pirzada NH, Sahito HA, Gopang MA, Memon MR, Pirzada M, Sanjrani MI, et al. Prevalence of intestinal parasites and risk perception of zoonotic infection for humans. DynMicrobiolInfectDis 2014;1:1-7.

9. Fisher M. Toxocara cati: An underestimated zoonotic agent. Trends Parasitol 2003;19:167-70. [Crossref]

10. Akao N, Ohta N. Toxocariasis in Japan. Parasitol Int 2007;56:87-93. [Crossref] [PubMed]

11. Magaji AA, Mohammed MN, Saulawa MA, Salihu MD. Survey of zoonotic gastrointestinal parasites of dogs (Canis familiaris) slaughtered at Zuru area, Kebbi State, Nigeria. Sci J Vet Adv 2012;1:132-6.

12. Anene BM, Nnaji TO, Chime AB. Intestinal parasitic infections of dogs in the Nsukka area of Enugu, Nigeria.Prev Vet Med 1996;27:89-94. [Crossref]

13. Omudu EA, Amuta EU. Parasitology and urban livestock farming in Nigeria: Prevalence of ova in faecal and soil samples and animal ectoparasites in Makurdi. J S Afr Vet Assoc 2007;78:40-5. [Crossref] [PubMed]

14. Ugbomoiko US, Ariza L, Heukelbach J. Parasites of importance for human health in Nigerian dogs: High prevalence and limited knowledge of pet owners. BMC Vet Res 2008;4:49. [Crossref] [PubMed] [PMC]

15. Ammani AL, Ja'afaru AK, Aliyu JA, Arab AI. Climate change and maize production: Empirical evidence from Kaduna State, Nigeria. JAgric Ext 2012;16:1119-9444.

16. Soulsby EJ. Helminths, Arthropods and Protozoa of Domesticated Animals. 7th ed. London: Lea and Febiger;1982. p. 119-27.

17. Jones O, Kebede N, Kassa T, Tilahun G, Macias C. Prevalence of dog gastrointestinal parasites and risk perception of zoonotic infection by dog owners in Wondo Genet, Southern Ethiopia. J Public Health Epidemiol2011;3:550-5.

18. Sowemimo OA, Asaolu SO. Epidemiology of intestinal helminth parasites of dogs in Ibadan, Nigeria. J Helminthol 2008;82:89-93. [Crossref] [PubMed]

19. Martinez-Moreno FJ, Hernandez S, Lopez-Cobos E, Becerra C, Acosta I, Martinez-Moreno A. Estimation of canine intestinal parasites in Cordoba (Spain) and their risk to public health. Vet Parasitol 2007;143:7-13. [Crossref] [PubMed]

20. Eguia-Aguilar P, Cruz-Reyes A, Martinez-Maya JJ. Ecological analysis and description of the intestinal helminths present in dogs in Mexico City. Vet Parasitol 2005;127:139-46. [Crossref] [PubMed]

21. Minnaar WN, Krecek RC, Fourie LJ. Helminths in dogs from a peri-urban resource-limited community in Free State Province, South Africa. Vet Parasitol 2002;107:343-9. [Crossref]

22. Pandey VS, Dakkak A, Elmamoune M. Parasites of stray dogs in Rabat region, Morocco. Ann Trop Med Parasitol 1987;81:53-5. [PubMed]

23. Olufemi BE, Bobade PA. Prevalence of gastrointestinal helminth parasites of dogs in Ibadan, Nigeria.Niger Vet J 1979;23:21-5.

24. Dusai DM. Gastrointestinal helminthiasis in dogs presented to small animal clinic of veterinary teaching Hospital, Ahmadu Bello University, Zaria. Z Vet 1989;4:2.

25. Paulos D, Addis M, Fromsa A, Mekibib B. Prevalence of gastrointestinal helminthes among dogs and owners perception about zoonotic dog parasites in Hawassa Town, Ethiopia. J Public Health Epidemiol 2012;4:205-9. [Crossref]

26. Schwabe CW. Veterinary Medicine and Human Health. 2nd ed.Baltimore: Williams & Wilkins; 1961. p. 287.

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