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Open access

Bekir Oguz, Nalan Ozdal and M. Serdar Deger


Introduction: Toxocara canis and Toxocara cati are roundworms of dogs and cats. The purpose of this study was to investigate the infection caused by these ascarids in cats and dogs, using microscopic and molecular analysis methods.

Material and Methods: Adult ascarids were gathered from the faeces of dogs and cats in Van province, in 2015–2016. Existing keys and PCR sequencing of the ITS-2 fragment were used to identify the morphological features of the parasite species.

Results: It was observed that out of 20 adult ascarids, 17 and 3 were found to be Toxocara canis and Toxocara cati, respectively. The ITS-2 gene region was amplified by PCR to perform molecular analysis. Genotyping indicated that the dogs and cats were infected with T. canis and T. cati, respectively, and none had Toxascaris leonina.

Conclusion: To the best of our knowledge, this is the first report on the molecular characteristics of adult ascaridoid nematodes from cats and dogs in Turkey. The molecular approaches established in this study enable molecular identification and genetic structure studies of the ascaridoids.

Open access

Bekir Oguz, Nalan Ozdal, Ozlem Orunc Kilinc and M. Serdar Deger


Introduction: Echinococcus granulosus is a zoonotic helminth of the Taeniidae family living in the small intestines of dogs. The hydatid cyst, which is the larval form of this parasite, is observed in sheep, goat, cattle, and many other organisms including humans. It causes a disease called cystic echinococcosis. Identification of strains of E. granulosus in dogs is critical in parasite control and eradication where possible. This study aims to determine the genotype of E. granulosus eggs and prevalence of this parasite in the faeces of dogs in the Van Province using the copro-PCR method.

Material and Methods: This study was conducted between 2015 and 2016 on the faeces obtained from 100 stray dogs from different parts of the Van Province. The coprological examination was conducted using the formalin-ether concentration method.

Results: Taeniidae eggs were found in 10 (10%) out of 100 faecal samples. E. granulosus was detected in 4 out of 10 of these (40%) infected samples. Sequence analysis of positive amplicons obtained from PCR showed that there were sheep strains (G1).

Conclusion: Dogs in Van area are primarily infected with the livestock genotype of E. granulosus, which is thought to be a potential zoonotic threat to humans.

Open access

N. Ozdal, A. Gul, F. Ilhan and S. Deger


This study was carried out in naturally infected cattle and sheep from May, 2006 to April 2007 in Van province, in the eastern of Turkey, to assess the prevalence of paramphistomosis. The rumen and reticulum of slaughtered cattle and sheep were collected monthly from abattoirs (Van Municipality of Slaughterhouse) to monitor the seasonal occurrence of paramphistomosis. 447 cattle and 948 sheep were examined, out of which 8.95 and 4.43 % were positive for Paramphistomum infection, with the mean intensity ± standard error of mean of 97.55 ± 12.50 and 89.17 ± 13.02, respectively. The highest infection in the cattle and sheep infected with Paramphistomum spp. was found during the autumn (September to November) (14.10 %, 8.33 %) and fallowed by the summer seasons (June to August) (9.02 %, 5.18 %).