Veli Yilgor Cirak

Dr. Veli Yilgor Cirak


Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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2 July 2019 in Avian Pathology
Verified
Journal Article
Open access
Cengiz GokbulutCengiz Gokbulut
Cengiz Gokbulut
MOMehmet Ozuicli
Mehmet Ozuicli
BABusra Aslan
Busra Aslan
LALevent Aydin
Levent Aydin
VCVeli Yilgor Cirak
Veli Yilgor Cirak
Spinosad (SPN) and abamectin (ABM) are used in poultry premises to control external parasites including red mites (Dermanyssus gallinae). This study aimed to determine SPN (spinosyn A + spinosyn D) and ABM residues in egg and edible tissues of laying hens following spray application. A total of 36 laying hens were divided into four groups of nine animals each, and they were kept in individual cages. Two different concentrations of SPN (2 and 4 g/L) and ABM (0.025 and 0.033 g/L) were applied in stocked and empty cages, respectively. Eggs were collected individually for 30 days. All hens were sacrificed at day 30 post–treatment, and tissue samples (liver, breast muscle, fat and skin) were collected. The residue levels in eggs and tissues were determined by high pressure liquid chromatography. ABM residues were not detectable in egg samples. SPN residues in eggs and residues of both ABM and SPN in liver, muscle and fat were under the maximum residue limits (MRLs) following low and high concentration applications. However, although the MRLs have not been established for SPN and ABM in skin tissue of chicken, residues in the skin detected at the low and high concentrations were greater than the MRLs for other edible tissues (except fat tissue) indicating that a withdrawal period would be necessary for the skin tissue after ABM and SPN use in laying hens.

25 March 2016 in Journal of Veterinary Pharmacology and Therapeutics
Verified
Journal Article
Closed access
PDF file
Cengiz GokbulutCengiz Gokbulut
Cengiz Gokbulut
MOM. Ozuicli
M. Ozuicli
DAD. Aksit
D. Aksit
EAE. Aksoz
E. Aksoz
OKO. Korkut
O. Korkut
VCVeli Yilgor Cirak
Veli Yilgor Cirak

14 October 2022 in Pathogens
Verified
Journal Article
Open access
PDF file
SÖSezayi Özübek
Sezayi Özübek
MUMehmet Can ULUÇEŞME
Mehmet Can ULUÇEŞME
VCVeli Yilgor Cirak
Veli Yilgor Cirak
Münir AktaşMünir Aktaş
Münir Aktaş
The ikeda and chitose genotypes of Theileria orientalis, which for many years were thought to be benign, cause a disease that results in significant economic losses in the cattle industry. This study was carried out in order to determine the genotypes of T. orientalis in cattle in Kyrgyzstan, and 149 archived DNA samples known to be T. orientalis were analyzed by the PCR amplification of the major piroplasm surface protein (MPSP) gene region. Single-Strand Conformation Polymorphism (SSCP) analysis was performed to uncover the nucleotide changes in the archived DNA samples, and 15 samples showing different band profiles were subjected to sequence analysis. As a result of the sequence analysis, it was seen that the samples belonged to the buffeli and chitose A genotypes. In order to identify mixed genotypes, PCR was performed using primers specific for these genotypes, and buffeli (type 3), chitose (type 1) and buffeli+chitose were found to be positive in 26.2%, 2% and 71.8% of samples, respectively. As a result of this study, we showed the presence of buffeli (type 3) and chitose (type 1) genotypes of T. orientalis in cattle in Kyrgyzstan. Comprehensive epidemiological studies are needed to understand the clinical infections caused by the pathogenic chitose A and to determine the geographical distribution and different genotypes of T. orientalis.

1 March 2021 in Turkish Journal of Parasitology
Verified
Journal Article
Closed access
VCVeli Yilgor Cirak
Veli Yilgor Cirak
Ahmet Onur GirisginAhmet Onur Girisgin
Ahmet Onur Girisgin
Significant numbers of parasites such as protozoa, helminths and arthropods infest equids. Various investigations have been conducted in Turkey to detect these parasites. In this review, all parasites reported in horses, donkeys and mules have been listed. A total of 62, 52 and 21 helminths were recorded in horses, donkeys and mules, respectively. As protozoan parasites, 13 species were detected both in horses and donkeys, and 3 in mules. With regard to arthropods, 40, 23 and 6 species were detected in horses, donkeys and mules, respectively. In the recent years, various molecular diagnostic methods have been developed and especially applied to the protozoan research area. Classical diagnostic methods were incapable of detecting certain protozoan parasites. Such protozoan parasites can be detected at the nucleic acid level with these new techniques. During the last quadranscentennial, a reduction has been recorded in the total number of equids in Turkey, whereby the breeding of sport horses is becoming an important issue. Thus, this review summarises the published research papers in Turkey in order to raise awareness among the animal owners and veterinarians in terms of the prevention of potential hazards resulting from parasitic infections/infestations in equids.

3 June 2025 in Veterinary Parasitology: Regional Studies and Reports
Verified
Journal Article
Closed access
VCVeli Yilgor Cirak
Veli Yilgor Cirak
IKIhsan Kisadere
Ihsan Kisadere
HCHüseyin Cihan
Hüseyin Cihan
MTMambetaly Tursumbetov
Mambetaly Tursumbetov
CBChristian Bauer
Christian Bauer

6 June 2026 in Revista Científica de la Facultad de Ciencias Veterinarias
Verified
Journal Article
Open access
PDF file
VCVeli Yilgor Cirak
Veli Yilgor Cirak
İKİHSAN KISADERE
İHSAN KISADERE
HCHüseyin Cihan
Hüseyin Cihan
MTMambetaly Tursumbetov
Mambetaly Tursumbetov
CBChristian Bauer
Christian Bauer
Trypanosoma evansi (surra) is widespread in several continents and affects many wild and domestic animal species. Although it has long been known from camels, horses and cattle in southern Central Asian regions of the former Soviet Union, there are no reports from Kyrgyzstan. The aim of this study was to screen for the presence of T. evansi infection in cattle in Kyrgyzstan. Plasma samples were collected from 559 clinically healthy cattle of both sexes and different ages in ten villages in the northern mountainous regions of the country. The samples were tested for trypanosome antibodies using a direct card agglutination test T. evansi according to the manufacturer's instructions. A total of 23 samples were found to be positive, giving an apparent seroprevalence of 4.1 % (95 % confidence interval: 2.6 –6.1 %). Low altitude (< 1000 m) and the Mediterranean climate zone were identified as risk factors for seropositivity. The results of this study suggest for the first time the presumptive presence of T. evansi infection in cattle in the sampled regions of Kyrgyzstan.