Doĝukan Özen

ORCID: 0000-0003-1943-2690
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Research Areas
  • Veterinary Equine Medical Research
  • Genetic and phenotypic traits in livestock
  • Agricultural and Rural Development Research
  • Animal Nutrition and Physiology
  • Sperm and Testicular Function
  • Corneal Surgery and Treatments
  • Ocular Surface and Contact Lens
  • Livestock Management and Performance Improvement
  • Corneal surgery and disorders
  • Hip disorders and treatments
  • Dental Radiography and Imaging
  • Cardiac, Anesthesia and Surgical Outcomes
  • Muscle metabolism and nutrition
  • Effects of Environmental Stressors on Livestock
  • Insect and Pesticide Research
  • Reproductive Biology and Fertility
  • Anatomy and Medical Technology
  • Cardiovascular Conditions and Treatments
  • Meat and Animal Product Quality
  • Rabies epidemiology and control
  • Human-Animal Interaction Studies
  • Microbial infections and disease research
  • Veterinary Orthopedics and Neurology
  • Advanced X-ray and CT Imaging
  • Sports Performance and Training

Ankara University
2016-2025

Cancer Research And Biostatistics
2020

Selçuk University
2018-2019

Siirt Üniversitesi
2018

Bal arılarında bağırsak mikroflorasını modüle etmek için antibiyotiklere alternatif olarak probiyotikler ve doğal bitki ekstraktları kullanılmaktadır. Bu bileşikler bağırsakta patojen mikroorganizma kolonizasyonunu önleyerek sürdürülebilir bal arısı üretimi sağlayabilir. Ancak hastalıklarını önlemek veya tedavi uygun ürünleri seçmek zor olabilir. nedenle ürünün belirlenmesinde çok kriterli karar verme (ÇKKV) yöntemleri kullanılabilir. Mevcut çalışmada Criteria Importance Through...

10.33188/vetheder.1592535 article TR Veteriner Hekimler Derneği Dergisi 2025-01-13

Objective: This study aimed to fit Autoregressive Integrated Moving Average (ARIMA) models the prevalence of overweight in Türkiye's overall, female, and male populations forecast future trends using best-performing ARIMA models. Methods: The dataset comprised annual values for from 1974 2022, obtained World Health Organization Bank Group databases. was divided into training test sets a chronological sequence with ratio 80:20, respectively. Training were used models, while evaluate...

10.53446/actamednicomedia.1603153 article EN cc-by-sa Acta Medica Nicomedia 2025-02-28

To compare the accuracy of cone-beam computed tomography (CBCT), ultrasonography (USG) and direct measurements in linear dimensions periodontal defects on buccal alveolar surfaces mandibular sheep teeth. A total 88 were artificially created, including dehiscence, fenestration, grade I II endodontic-periodontal defects. Two observers performed twice. Maximum length, depth width measured with all three methods. Manual accepted as gold standard. Intraclass correlation coefficients (ICC)...

10.1093/dmfr/twaf019 article EN cc-by-nc Dentomaxillofacial Radiology 2025-03-26

This study evaluated the effect of intra-amniotic synbiotic inclusion and continued supplementation in diet on performance, intestinal epithelium integrity, cecal microflora broiler chickens. In Experiment 1, 510 eggs containing viable embryos were divided into 3 groups 170 each. The first group was not injected served as a negative control ( NC: ). next with 0.9% NaCl positive PC: synbiotic-injected S: ) 0.5% inulin 1 × 106 Enterococcus faecium solution. non-injected further 2 sets for...

10.3382/ps/pew218 article EN cc-by-nc-nd Poultry Science 2016-07-19

Stray dogs and cats contribute to serious health problems in human societies around the world. Before any necessary interventions control stray cats, an accurate estimate of their populations should be attained. Yet, there is a very limited number methods for estimation. Some them depend on identification marked or counted animals. However, arise when it not possible identify previously captured animal. In this paper, we used different approach lower bound total consecutively visited...

10.3906/vet-1505-70 article EN TURKISH JOURNAL OF VETERINARY AND ANIMAL SCIENCES 2016-01-01

1. In this study, the effect of chlorogenic acid extract from Lonicera japonica Thunb. on Mycoplasma gallisepticum infections and performance broiler flocks was investigated. 2. A total 360 Ross-308 chicks taken M. seropositive were divided equally into three groups designated as control (nothing administered), antibiotic (Tylosin tartrate given for first 3 d 20-22) test group (chlorogenic twice a day 16 22). 3. Broiler analysis, serological tests (slide agglutination), molecular...

10.1080/00071668.2015.1022711 article EN British Poultry Science 2015-03-03

To assess the in vitro performance of high-definition (HD) US, CBCT and periapical radiography for visibility proximal recurrent caries teeth with without restoration.A total 240 molar were divided into eight groups each comprised 30 teeth. Control consisted (Group 1-4; N = 120), whereas diseased 5-8; 120 teeth). Finally, a four image sets obtained as follows: i) PSP radiography, ii) 0.075 mm voxel size, iii) 0.2 size iv) HD US images. The viewed separately by observers using 5-point...

10.1259/dmfr.20210026 article EN Dentomaxillofacial Radiology 2021-05-12

This study examined the factors influencing pet attachment by investigating dimensions and exploring relationship between demographic attachment. The utilized Pet Attachment Questionnaire (PAQ) to assess level of owners their animals. A questionnaire was also administered gather socio-cultural, economic, health-related data from caretakers. Confirmatory factor analysis applied confirm scale structure. Hypothesis testing procedures were used reveal characteristics participants relationships....

10.33988/auvfd.1366652 article EN Ankara Üniversitesi Veteriner Fakültesi Dergisi 2024-02-21

This study was conducted to identify the seroprevalance of diseases which are zoonotic and responsible from abortion such as toxoplasmosis, listeriosis brucellosis in Holstein crossbred cattle different age sex Adana province, between 2008 April-September.For this purpose, blood serum samples were collected 132 analyzed for Toxoplasma gondii, Listeria monocytogenes Brucella abortus antibodies. T. L. antibodies determined by standard Sabin- Feldman Dye Test (SFDT), Osebold method Microtube...

10.5152/tpd.2014.3454 article EN cc-by-nc-nd Turkish Journal of Parasitology 2014-07-08

The aim of this study was to assess the accuracy cone-beam computed tomographic (CBCT) images obtained using different voxel sizes in measuring trabecular bone microstructure comparison micro-CT.Twelve human skull bones containing posterior-mandibular alveolar regions were analyzed. CBCT at 0.075 mm (high: HI) and 0.2 (standard: Std), while micro-CT imaging used 0.06 (HI) 0.12 (Std). Analyses performed CTAn software with standardized automatic global threshold method. Intraclass correlation...

10.5624/isd.20220025 article EN cc-by-nc Imaging Science in Dentistry 2022-01-01

Abstract Canine transmissible venereal tumour ( CTVT ) is a naturally occurring contagious neoplasm of dogs located mainly on the external genitalia both sexes. The course vincristine chemotherapy, most effective and practical therapy, affected by immune status host. aim was to investigate recombinant human interferon alpha‐2a (rh IFN α ‐2a) for treatment . A total 21 female were included. In group I n = 9), (0.025 mg/kg, IV administered weekly. II 6), injected intratumorally weekly with 1.5...

10.1002/vms3.119 article EN cc-by Veterinary Medicine and Science 2018-08-17

To examine the effectiveness of terahertz (THz) pulsed imaging (TPI) in comparison to intraoral photostimulable phosphor late (PSP) and cone beam CT (CBCT) for detection dental caries ex vivo.Newly extracted 32 human permanent teeth surfaces (16 with 16 without caries) were serially sectioned mesiodistally imaged by using four image sets as follows: (1) CBCT; (2) PSP; (3) THz movie video; (4) static images. All images evaluated twice separately two calibrated observers presence/absence a...

10.1259/dmfr.20180250 article EN Dentomaxillofacial Radiology 2018-10-31

The objective of this study is to model the per capita consumption red meat in Turkey employing various time series methods, evaluate forecasting capability developed models, and address variables that may affect capital using cointegration method on a term basis (short/long). material consists meat, total annual population, feed prices, gross domestic product share agriculture between 1993 2017. ARIMA (0,1,0) Brown's exponential smoothing were employed data for Johansen was used...

10.32707/ercivet.595626 article EN Erciyes Üniversitesi Veteriner Fakültesi Dergisi 2019-07-23

The aim of this study was to assess the ex vivo diagnostic ability 9 different cone-beam computed tomography (CBCT) settings in detection recurrent caries under amalgam restorations primary teeth.Fifty-two teeth were used. Twenty-six had dentine and 26 did not have caries. Black class II cavities prepared restored with amalgam. In carious teeth, left restorations. other intact that served as controls. Teeth imaged using a 100×90-mm field view 0.2-mm voxel size CBCT settings. Four observers...

10.5624/isd.2017.47.2.109 article EN cc-by-nc Imaging Science in Dentistry 2017-01-01

The aim of this study was to determine the risk factors for subclinical heifer mastitis and create a model that can predict prevalence pregnant heifers in farms Turkey. Lacteal secretion samples were taken from 439 (6-9 months) bacteriological analyses performed. In study, 37.47% determined be infected. lacteal samples, isolation rate coagulase-negative staphylococci Staphylococcus aureus 44.83% 35.71%, respectively. incidence calculated as 42.87 ± 4.12%. An eight-question survey conducted....

10.3906/vet-1501-80 article EN TURKISH JOURNAL OF VETERINARY AND ANIMAL SCIENCES 2015-01-01

Bu calismanin amaci farkli nitelikteki Turk Safkan Arap atlarinin yasam fonksiyonlari ile ortalama yaris hayati surelerinin hesaplanmasidir. Bunun yanisira, uzunlugunda etkili olabilecek risk faktorlerini belirlemek ve bu faktorlerin yer aldigi bir model olusturmak hedeflenmistir. Calismanin materyalini 2003 daha sonraki yillarda dogan 3354 safkan ati olusturmaktadir. Incelenen her faktor icin uzunlugunun hesaplanmasinda Kaplan-Meier analizi kullanilmistir. Yaris hayatina etki eden...

10.1501/vetfak_0000002744 article TR cc-by-nc-nd Ankara Üniversitesi Veteriner Fakültesi Dergisi 2016-01-01

Micro-computed tomography (µCT), a modern imaging technique, provides detailed information on the bone morphology of small animal models.The objectives are 1) to produce three dimensional (3D) models from µCT images femoral and tibial bones New Zealand rabbits, 2) estimate compare morphometric volumetric results among genders as well left right sides.A total twenty adult rabbits (10 females, 10 males, aged 12-18 weeks, weight= 2.5-3 kg) were used for this study. ‏‏Three reconstructed created...

10.22099/ijvr.2021.39092.5688 article EN PubMed 2021-01-01

Cyclin D1 is an important positive regulator of the G1/S phase cell cycle. We investigated association between CCND1 G870A polymorphism and susceptibility to papillary thyroid cancer in Turkish people. This study covered 102 patients with 174 healthy controls. genotyping was determined by PCR-RFLP method. found that A allele frequency higher cases than controls (p=0.042). On stratification analysis, risk significantly elevated individuals older 45 years (OR=1.91, 95% CI, 1.09-3.35, p=0.024)...

10.7314/apjcp.2014.15.17.7181 article EN cc-by Asian Pacific Journal of Cancer Prevention 2014-09-15

Abstract The aim of this study was to determine the serum concentrations, ovarian presence and expression anti‐Müllerian hormone (AMH) in pre‐pubertal, bitches with signs remnant syndrome (ORS) intact bitches. In addition, we aimed verify suitability AMH concentrations for diagnostic purposes sterilized and/or suspected cases ORS field veterinary medicine. For purpose, 36 healthy female dogs divided into six groups: proestrus, oestrus, dioestrus, anoestrus, pre‐pubertal ORS. Serum were...

10.1111/rda.13451 article EN Reproduction in Domestic Animals 2019-05-03

Aim of this study was to investigate direct, indirect and total effects body measurements on live weight in Awassi sheep derive prediction equations for estimation the weight. Live weight, head length, withers height, chest depth, width rump height 270 at age 2-4 years raised a private farm Eskişehir Province, Turkey used. A recursive path model established estimate using these measurements. Results showed that there significant effect length direct The strongest predictor followed by...

10.33988/auvfd.512959 article EN Ankara Üniversitesi Veteriner Fakültesi Dergisi 2019-05-22
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