A Preliminary Investigation of the Haemoproteus Infection in Domestic Pigeons of Torkaman County, Iran by Microscopic and Molecular Methods
2023
Iri, Saeid | Firouzivand, Yaghoub | Hosseinzadeh, Somayyeh
BACKGROUND: The protozoan Haemoproteus belongs to the Phylum Apicomplexa, Class Sporozoa, and Order Haemosporina. Avian haemosporidian are protozoan parasites that use birds as hosts around the world. Many species of wild and domestic doves are natural hosts of different species of Haemoproteus. Blood-sucking arthropods are the main vectors of these blood parasites.OBJECTIVES: The aim of this study was the microscopic and molecular investigation of the protozoan Haemoproteus columbae in the blood of infected pigeons in Torkaman County, Iran.METHODS: Blood samples and tubes containing ethylenediaminetetraacetic acid (EDTA) anticoagulant were collected from 96 domestic pigeons randomly from 14 pigeon lofts and different parts of Torkaman County.Pigeons were also inspected for infection with the host-vector Pseudolynchia canariensis. In the next step, blood smears were stained with Giemsa and examined microscopically. Also, blood tubes containing EDTA were tested by PCR method on the cytochrome b gene.RESULTS: Microscopic and molecular examination of peripheral blood showed that 62 (64.58 %) and 73 (76.04 %) of the investigated pigeons were contaminated, respectively. Of the 62 infected pigeons infected with the Haemoproteus, 28 pigeons (66.66 %) were male, and 34 (62.96 %) were female. Also, the infestation with Pseudolynchia canariensis was observed in 4 (28.57 %) pigeon lofts.CONCLUSIONS: The preliminary investigation shows the high rate of Haemoproteus infection in pigeons in Torkaman County. Further studies to determine the prevalence and accurate identification of the species infecting pigeons in this region require PCR testing and sequencing of infected blood samples.
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