Metrics
Publication
36
Open Access
2
UN Sustainable Development Goals
Education
2022 - 2023
2022 - 2023Post Doctorate
University of London-Queen Mary and Westfield College, Faculty of Science and Engineering, School of Biological and Behavioural Sciences, England
2014 - 2019
2014 - 2019Doctorate
Ataturk University, Veteriner Fakültesi, Zootekni Anabilim Dalı, Turkey
2006 - 2011
2006 - 2011Undergraduate
Ankara University, Veteriner Fakültesi, Veteriner, Turkey
Dissertations
2019
2019Doctorate
Comparison of Yield, Stress and Immunity Levels of Domestic and Foreign Origin Layer Hybrits Reared In Different Cage Densities
Ataturk University, Veteriner Fakültesi, Zootekni ve Hayvan Besleme
Foreign Languages
B2 Upper Intermediate
B2 Upper IntermediateEnglish
Certificates, Courses and Trainings
2025
2025Güvenilir Yapay Zeka: Riskler, Etik Değerler ve İlkeler
IT
T.C. Cumhurbaşkanlığı İnsan Kaynakları Ofisi
2025
2025Sağlıkta Yapay Zeka
Health&Medicine
T.C. Cumhurbaşkanlığı İnsan Kaynakları Ofisi
2025
2025Tarımda Yapay Zeka
Health&Medicine
T.C. Cumhurbaşkanlığı İnsan Kaynakları Ofisi
2020
2020First aid
Health&Medicine
Atatürk Üniversitesi
2019
2019Tarım Bakanlığı Çalıştayı (Bölgesel Hayvancılık Çalıştayı - Kanatlı Hayvan Yetiştiriciliği Grubu)
Other
TC. Tarım ve Orman Bakanlığı
2016
2016Occupational Health and Safety Participation Certificate
Occupational Health and Safety
Atatürk Üniversitesi Veteriner Fakültesi Dekanlığı
2015
2015Experimental Animals Use Certificate
Health&Medicine
Erzurum Veteriner Kontrol Enstitüsü Müdürlüğü Hayvan Deneyleri Yerel Etik Kurulu
2012
2012Artificial Insemination by Recto-Vaginal Method in Cattle
Health&Medicine
Konya İl Gıda Tarım ve Hayvancılık Müdürlüğü
2012
2012Veterinary Practice and Polyclinic Regulations
Health&Medicine
Türk Veteriner Hekimleri Birliği
Research Areas
Avesis Research Areas:
Veterinary Sciences, Zootechnical and Animal Feed, Zootechnical (Breeding and Breeding), Cattle, Poultry, Animal Welfare, Behavior and Ethics, Health Sciences
WoS Research Areas:
Plant & Animal Science, Veterinary Sciences, Agriculture & Environment Sciences (Age)
Scopus Research Areas:
Small Animals, General Veterinary
Research Areas Based on Academic Activities
Avesis Research Areas
WoS Research Areas
Scopus Research Areas
Academic Positions
2020 - Present
2020 - PresentAssistant Professor
Ataturk University, Veteriner Fakültesi, Zootekni ve Hayvan Besleme
2022 - 2023
2022 - 2023Researcher
University of London-Queen Mary and Westfield College, Science and Engineering, School of Biological and Behavioural Sciences
2013 - 2020
2013 - 2020Research Assistant PhD
Ataturk University, Veteriner Fakültesi, Zootekni ve Hayvan Besleme
Managerial Experience
2025 - Present
2025 - PresentAssistant Manager of Research and Application Center
Ataturk University, Veteriner Fakültesi
2021 - Present
2021 - PresentUnit Accreditation Board Member
Ataturk University, Veteriner Fakültesi
2021 - Present
2021 - PresentEducation and Curriculum Board Member
Ataturk University, Veteriner Fakültesi
2024 - 2024
2024 - 2024Head of Department
Ataturk University, Veteriner Fakültesi, Zootekni ve Hayvan Besleme
2021 - 2022
2021 - 2022Member of the Faculty Board
Ataturk University, Veteriner Fakültesi
2020 - 2022
2020 - 2022Applied Research Center Board Member
Ataturk University, Veteriner Fakültesi
2020 - 2022
2020 - 2022Assistant Manager of Research and Application Center
Ataturk University, Veteriner Fakültesi
Non Academic Experience
2012 - 2013
2012 - 2013Veterinarian
Business Establishment Private, Atasancak Acıpayam Dairy Farm, Animal Health and Animal Production, Veterinarian
2011 - 2012
2011 - 2012Food Control Officer
Other Public Institution, Military Service, Food Control Officer, Food Control Officer
Courses
Doctorate
Doctorate
Hayvan Barınakları
Kürk Hayvanları Yetişticiliği
Evcil Hayvanlarda Davranış Bilimi
Hayvancılıkta Verim Kontrolleri
Hindi Yetiştiriciliği
Tavuk Yetiştiriciliği
Hayvan Yetiştirme Metotları ve Seleksiyon
Tavuk Yetiştiriciliği
Postgraduate
Postgraduate
Hayvan Yetiştiriciliği Temel Bilgileri
Koyun Yetiştiriciliği
Animal Breeding Basics
Milk Production
Hayvansal Üretim
Incubation Technique
Undergraduate
Undergraduate
Zootekni IV(Kanatlı Hayvan Yetiştiriciliği ve Kuluçka Bilgisi)
Zootekni IV (Kanatlı Hayvan Yetiştiriciliği ve Kuluçka Bilgisi)
Zootekni II: Küçükbaş Hayvan Yetiştiriciliği
Zootekni III (Büyükbaş Hayvan Yetiştiriciliği)
Zootekni 2
Zootekni
Zootekni 2
Vocational practice II
Herd Health
Animal Science II
Livestock Breeding
Bee Products Production
Animal Science II
Poultry Breeding
Mesleki Uygulama
Animal Science II
Vocational practice I
Animal Science II
Animal Science I
Poultry Breeding Techniques
Articles
All (19)
SCI-E, SSCI, AHCI (12)
SCI-E, SSCI, AHCI, ESCI (12)
Scopus (13)
TRDizin (8)
Other Publications (1)
2025
20251. Effects of In-Ovo Chrysin Injection to Quail Eggs on Hatchability, Production Parameters, and Immunity
ÖZENTÜRK U., GENÇ M., AYDIN Ö.
KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI
, vol.31, no.3, pp.395-402, 2025 (SCI-Expanded, Scopus, TRDizin)
2025
20252. Effect of Cage Environmental Enrichment on Egg Quality in Two Laying Hen Strains
Özentürk U., Uysal A.
KSU TARIM VE DOGA DERGISI-KSU JOURNAL OF AGRICULTURE AND NATURE , vol.28, no.2, pp.593-601, 2025 (TRDizin)
2025
20253. The effect of cage density and meat storage period on some meat quality parameters in brown and white spent hens
Özentürk U., Uysal A., Laçin E., Uysal S., Urçar Gelen S., Ozlu H.
VETERINARY RESEARCH FORUM , vol.16, no.2, pp.71-79, 2025 (SCI-Expanded, Scopus)
2025
20254. The identification of low-producing hens in egg production systems using objective methods
ÖZENTÜRK U., GENÇ M., LAÇİN E., ÇOBAN Ö., UYSAL A., KESEN A. O.
SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE , vol.55, no.3, pp.98-114, 2025 (SCI-Expanded, Scopus)
2025
20255. Determination of the effects of in-ovo chrysin addition to fertile quail eggs on testicular histology, oxidative stress and semen quality
Özentürk U., Genç M., Ömür A. D., Erbaş E., Uysal A., Yoru A., et al.
POLISH JOURNAL OF VETERINARY SCIENCES
, vol.28, no.2, pp.175-181, 2025 (SCI-Expanded, Scopus)
2025
20256. The effect of different cage densities on selected stress and welfare indicators in brown and white laying hens
UYSAL A., ÖZENTÜRK U., LAÇİN E., LAÇİN B. B.
ACTA VETERINARIA BRNO , vol.94, no.2, pp.145-154, 2025 (SCI-Expanded, Scopus)
2025
20257. Assessment of the relationship between body weight and body measurements among Morkaraman, Tushin and Awassi sheeps with different ages
ÖZENTÜRK U., ELTAS Ö., DEMİR O., SAYIM A. A.
Veteriner Hekimler Derneği Dergisi , vol.96, no.1, pp.41-51, 2025 (TRDizin)
2024
20248. The Effect of Light Intensity and Temperature-Humidity Index on Egg Performance and Growth Rate in Laying Hens Raised in Different Cage Tiers
Özentürk U., Çoban Ö., Kesen A. O., Uysal A.
Erciyes Üniversitesi Veteriner Fakültesi Dergisi
, vol.21, no.3, pp.184-193, 2024 (TRDizin)
2024
20249. Robotics for poultry farming: Challenges and opportunities
Özentürk U., Chen Z., Jamone L., Versace E.
Computers and Electronics in Agriculture , vol.226, 2024 (SCI-Expanded, Scopus)
2024
202410. The effect of worker clothing color on stress in laying hens
Genç M., Özentürk U.
ARCHIVES ANIMAL BREEDING
, vol.67, no.2, pp.145-151, 2024 (SCI-Expanded, Scopus)
2024
202411. Effect of Environmental Enrichment Within Cages on Production and Welfare in Laying Hens
Özentürk U., Uysal A.
BRAZILIAN JOURNAL OF POULTRY SCIENCE
, vol.26, no.4, 2024 (SCI-Expanded, Scopus)
2023
202312. Assessment of the feather score and health score in laying hens reared at different cage densities
ÖZENTÜRK U., YILDIZ A., GENÇ M.
ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI , vol.70, no.1, pp.1-8, 2023 (SCI-Expanded, Scopus, TRDizin)
2021
202113. Comparison of performance parameters, stress, and immunity levels of native and commercial layers reared in different cage densities in Turkey
ÖZENTÜRK U., YILDIZ A.
TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES , vol.45, no.6, pp.1052-1064, 2021 (SCI-Expanded, Scopus, TRDizin)
2020
202014. Can Propolis, the Natural Disinfectant of Bees, be Used As an Effective and Healty Disinfectant for Hatching Eggs?
Genç M., Özentürk U., Atasever M.
INDIAN JOURNAL OF ANIMAL RESEARCH , vol.54, no.6, pp.775-780, 2020 (SCI-Expanded, Scopus)
2020
202015. The Effects of Some Characteristic of Hatching Eggs on Embryonic Death and Hatchability Traits in Japanese Quail
Genç M., Özentürk U.
Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi , vol.10, no.2, pp.1456-1462, 2020 (TRDizin)
2020
202016. Assessment of Egg Quality in Native and Foreign Laying Hybrids Reared in Different Cage Densities
Ozenturk U., Yildiz A.
BRAZILIAN JOURNAL OF POULTRY SCIENCE , vol.22, no.3, 2020 (SCI-Expanded, Scopus)
2018
201817. Effect of genotype on slaughtering performance, blood analyses and meat quality of laying hens reared in different conventional cage densities
Yıldırım F., Özentürk U., Özlü H., Urçar S., Apaydın Yıldırım B., Atasever M., et al.
GSC Biological and Pharmaceutical Sciences , vol.5, no.3, pp.54-65, 2018 (Peer-Reviewed Journal)
2018
201818. Influence of breed and parity on teat and milking characteristics in dairy cattle
GENÇ M., ÇOBAN Ö., ÖZENTÜRK U., ELTAS Ö.
Macedonian Veterinary Review , vol.41, no.2, pp.169-176, 2018 (Scopus)
2018
201819. Estimated Genetic Diversity Between Atak-S and Isa Brown Chickens with SSR Markers
Özdemir S., Arslan H., Özentürk U., Yıldırım F., Yıldız A.
Kocatepe Veterinary Journal , vol.11, pp.53-62, 2018 (TRDizin)
Papers Presented at Peer-Reviewed Scientific Conferences
2025
20251. Sığırcılık İşletmelerinde Kolostrum Yönetim Stratejileri
GENÇ M., ÖZENTÜRK U.
ISPEC 9th Uluslararası Tıp ve Sağlık Bilimleri Kongresi, Dubai, United Arab Emirates, 15 - 19 May 2025, pp.1136-1145, (Full Text)
2024
20242. Behaviour of Honey Bees
Özentürk U., Genç M., Kepti S., Bostancı O. B.
8th International Conference on Medical & Health Sciences, Girne, Cyprus (Kktc), 4 - 06 July 2024, pp.216-225, (Full Text)
2024
20243. LITTER MANAGEMENT IN BROILER BREEDING
BOSTANCI O. B., ÖZENTÜRK U., GENÇ M., KEPTİ S.
8th INTERNATIONAL CONFERENCE ON MEDICAL & HEALTH SCIENCES, Cyprus (Kktc), 4 - 06 July 2024, (Summary Text)
2024
20244. BEHAVIOURAL NEEDS OF LAYING HENS
ÖZENTÜRK U., GENÇ M.
7th International Cukurova Agriculture and Veterinary Congress, Adana, Turkey, 9 - 10 March 2024, (Full Text)
2024
20245. WELFARE IN CATTLE TRANSPORTATION AND EFFECTS OF TRANSPORTATION CONDITIONS
GENÇ M., ÖZENTÜRK U.
7th INTERNATIONAL CUKUROVA AGRICULTURE AND VETERINARY CONGRESS, Adana, Turkey, 9 - 10 March 2024, (Full Text)
2023
20236. The Importance of Maternal Care for Chick Welfare
Özentürk U.
5th INTERNATIONAL CONFERENCE ON FOOD, AGRICULTURE AND VETERINARY , Kars, Turkey, 17 - 19 March 2023, pp.1-2, (Summary Text)
2023
20237. WHY DOES FOOTPAD DERMATY OCCUR IN BROILER CHICKENS?
UYSAL A., LAÇİN E., YILDIRIM F., GENÇ M., ÖZENTÜRK U.
5. INTERNATIONAL FOOD, AGRICULTURE AND VETERINARY SCIENCES CONGRESS, Turkey, 17 February 2023, (Full Text)
2020
20208. The past, present and the future of the stray animals in Turkey
Özentürk U.
Better Science for Better Animal Welfare, 1st Regional Animal Welfare Conference, 10 - 11 March 2020, pp.19-20, (Full Text)
2019
20199. Hayvan Destekli Tedavi: Terapi Köpekleri
ÖZENTÜRK U.
Atavet 1. Uluslararası (2. Uluslararası Katılımlı) Öğrenci Kongresi, 4 - 06 December 2019, (Full Text)
2019
201910. BROILER MEAT: THE FACTS OF THE CASE
Özentürk U., Yıldız A.
ATAVET 1. Uluslararası (2. Uluslararası katılımlı) Öğrenci Kongresi, Erzurum, Turkey, 4 - 06 December 2019, (Full Text)
2019
201911. PROBLEMS OF STRAY ANIMALS, SOLUTION PROPOSALS, SHELTERS AND TEMPORARY ANIMAL CARE HOUSES; CIVRIL COUNTY EXAMPLE
Yavuz M. A., Özentürk U.
ATAVET 1 ULUSLARARASI (2. ULUSLARARASI KATILIMLI) Öğrenci Kongresi, Erzurum, Turkey, 4 - 06 December 2019, (Full Text)
2019
201912. The Use of Feather Score in Laying Hens
Özentürk U.
4. Uluslararası Bilimsel Araştırmalar Kongresi, Yalova, Turkey, 14 - 17 February 2019, (Full Text)
2018
201813. Linear model approaches for live weight estimation in Brown Swiss, Holstein Friesian and Simmental cattle
Özentürk U., Genç M., Çoban Ö.
VII. Ulusal Veteriner Zootekni Kongresi, Hatay, Turkey, 2 - 05 May 2018, (Summary Text)
2017
201714. Relationship Between Milk Flow Rate and Some Morphological Teat Characteristics in Dairy Cattle
GENÇ M., ÇOBAN Ö., ÖZENTÜRK U., ELTAS Ö.
Atatürk Üniversitesi Veteriner Fakültesi (ATAVET) I. Uluslararası Katılımlı Öğrenci Kongresi, 18 - 20 October 2017, (Summary Text)
2017
201715. COMPARISON OF GROWTH PERFORMANCES OF NATIVE LAYING HYBRIDS WITH FOREIGN ORIGIN LAYING HYBRIDS
Özentürk U., Yıldız A.
ATAVET 1. ULUSLARARASI KATILIMLI ÖĞRENCİ KONGRESİ, Erzurum, Turkey, 18 - 20 October 2017, (Summary Text)
Books
2024
20241. WELFARE STANDARDS IN SHEEP
Uysal A., Laçin E., Özentürk U.
in: Veteriner Hekimlik, Mehmet Şükrü GÜLAY, Editor, Yaz yayınları, Afyonkarahisar, pp.82-99, 2024
2020
20202. Türkiye’de Sokak Hayvanları
Özentürk U.
in: Current Approaches in Veterinary Medicine, Gültekin Yıldız,Özlem Durna Aydın, Editor, Akademisyen Kitabevi, Ankara, pp.25-32, 2020
Funded Projects
2025 - Present
2025 - PresentVerim Dönemi Sonunda Kahverengi ve Beyaz Yumurtacı Tavuklarda Performans Yumurta Kalitesi Kemik Mineral Yoğunluğu Serum Mineral Düzeyleri ve Ovaryum Aktivitesinin Değerlendirilmesi
Project Supported by Higher Education Institutions , BAP Research Project
UYSAL A. (Executive), ÖZENTÜRK U., GÜR C., LAÇİN E., TAŞ Ş.
2024 - Present
2024 - PresentSıcaklık stresi uygulanan yumurtacı tavukların rasyonlarına Mentha longifolia ilavesinin performans yumurta kalitesi bağırsak sağlığı ve histopatolojisi serum biyokimyası ve antioksidan parametreler üzerine etkisinin incelenmesi
Project Supported by Higher Education Institutions , BAP Research Project
UYSAL S. (Executive), ÖZENTÜRK U., LAÇİN E., GÜR C., UYSAL A., ERBAŞ E.
2022 - 2024
2022 - 2024Döllü Bıldırcın Yumurtalarına İnOvo Chrysin Takviyesinin Kuluçka Performansı Yaşama Gücü Yumurtlama Yaşı Civcivlerde Bağışıklık Düzeyi ve Oksidatif Stres Üzerine Etkisi
Project Supported by Higher Education Institutions , BAP Research Project
GENÇ M. (Executive), ÖZENTÜRK U., KÜÇÜKLER S.
2022 - 2023
2022 - 2023Yumurta Tavuğu Yetiştiriciliğinde Kafeste Çevresel Zenginleştirmenin Verim ve Refaha Etkisi
Project Supported by Higher Education Institutions , BAP Research Project
(Project Abstract)
ÖZENTÜRK U. (Executive), KÜREKSİZ A.
2022 - 2022
2022 - 2022Koyun-Keçi Sağım Sistemi
Project Supported by Higher Education Institutions , BAP Research Project
DEMİR O. (Executive), ŞİŞİK OĞRAŞ Ş., KAYA A., ÖZENTÜRK U., ŞENGÜL E., AYDIN M. A.
2021 - 2022
2021 - 2022Yumurta Tavukçuluğunda Verimsiz Tavukların Objektif Metotlarla Belirlenmesi
Project Supported by Higher Education Institutions , BAP Research Project
ÖZENTÜRK U. (Executive), KESEN A. O., LAÇİN E., GENÇ M., KÜREKSİZ A.
2020 - 2022
2020 - 2022Gıda ve Hayvancılık Uygulama ve Araştırma Merkezinin Yeni Ürün Geliştirme Kapasitesinin Artırılması
Project Supported by Higher Education Institutions , BAP Other
DEMİR O. (Executive), KAYA A., ŞENGÜL E., AYDIN M. A., ÖZENTÜRK U.
2020 - 2021
2020 - 2021Gıda ve Hayvancılık Uygulama ve Araştırma Merkezi Tavukçuluk Biriminin Araştırma Alt Yapısının Güçlendirilmesi ve Yumurta Kalitesinin Değerlendirilmesi
Project Supported by Higher Education Institutions , BAP Research Project
ÖZENTÜRK U. (Executive), DEMİR O., KAYA A.
2019 - 2020
2019 - 2020Bir Pati Sevgi
Project Supported by Higher Education Institutions , BAP Other
ÖZENTÜRK U. (Executive), ÖZER B., KESEN A. O., BÜYÜKKARACA N., KESEN A. O., KÜREKSİZ A.
2017 - 2018
2017 - 2018
Zootekni ve Hayvan Besleme Bölümü Altyapı Geliştirme Projesi
Project Supported by Higher Education Institutions , BAP Guided
ÇOBAN Ö. (Executive), YILDIZ A., ÖZENTÜRK U., LAÇİN E., SABUNCUOĞLU ÇOBAN N., GENÇ M., et al.
2016 - 2017
2016 - 2017"YUMURTACI TAVUKLARDA LİPİD PROFİLİNİN STRES GÖSTERGESİ OLARAK KULLANILABİLİRLİĞİNİN ARAŞTIRILMASI"
Project Supported by Higher Education Institutions , BAP Research Project
KAYNAR Ö. (Executive), YENİCE G., ÖZENTÜRK U., YILDIZ A., İLERİTÜRK M.
2016 - 2017
2016 - 2017"ATAK-S, ISA BROWN VE NOVAGEN YUMURTACI TAVUK HİBRİTLERİN STRES VE BAĞIŞIKLIK DÜZEYLERİNİN DEĞERLENDİRİLMESİ"
Project Supported by Higher Education Institutions , BAP Research Project
YILDIZ A. (Executive), ÖZENTÜRK U.
2016 - 2017
2016 - 2017"YERLİ VE YABANCI YUMURTACI TAVUK HİBRİTLERİNDE VERİM İLE İLİŞKİLİ MOLEKÜLER MARKÖRLERİN GELİŞTİRİLMESİ"
Project Supported by Higher Education Institutions , BAP Research Project
YILDIZ A. (Executive), ÖZDEMİR S., YILDIRIM F., ÖZENTÜRK U.
2011 - 2016
2011 - 2016Halk Elinde Hayvan Islahı Ülkesel Projesi Erzurum İli Morkaraman Koyun Irkının Halk Elinde Islahı Alt Proje 1
Project Supported by Other Official Institutions
Özentürk U., Yıldız A. (Executive)
2011 - 2016
2011 - 2016Halk Elinde Hayvan Islahı Ülkesel Projesi Erzurum ili Morkaraman Koyun Irkının Halk Elinde Islahı Alt Proje 2 TAGEM 25MOR2006 2
Project Supported by Other Official Institutions
Özentürk U., Yıldız A. (Executive)
Activities in Scientific Journals
2021 - Present
2021 - PresentVeterinary sciences and practices (Online)
Assistant Editor/Section Editor
Student Project
2025 - Present
2025 - PresentBüyütme Döneminde Japon Bıldırcınlarına (Coturnix coturnix japonica) Karanlık Alan Sağlanmasının Büyüme ve Refah Üzerine Etkileri
R & D Project
Ataturk University, Veteriner Fakültesi, Zootekni ve Hayvan Besleme, Turkey
Roles in Event Organizations
May 2025
May 2025ISPEC 9. Uluslararası Tıp ve Sağlık Bilimleri Kongresi
Scientific Congress
Özentürk U.
Dubai, United Arab Emirates
June 2024
June 20248th ISPEC Internatıonal Conference on Medıcal & Health Scıences
Scientific Congress
Özentürk U.
Girne, Cyprus (Kktc)
March 2024
March 20247th International Cukurova Agriculture and Veterinary Congress
Scientific Congress
Özentürk U.
Adana, Turkey
November 2019
November 2019ATAVET I. International (II. International Participants) Student Congress
Scientific Congress
Özentürk U., Gür C.
Erzurum, Turkey
Mobility Activity
2022 - 2023
2022 - 2023Post Doc
Post Doc
University of London-Queen Mary and Westfield College, England
Awards
July 2019
July 2019Erzurum Kongresi'nin 100. Yıl Anısına Düzenlenen Kurumlar Arası Futbol Turnuvası (35 Yaş Altı)
Türkiye Cumhuriyeti Gençlik Ve Spor Bakanlığı
Scholarships
2022 - 2023
2022 - 2023Artificial Intelligence and Robotic Systems in Chick Learning Process for Poultry Welfare
TUBITAK
Citations
Total Citations (WOS): 37
h-index (WOS): 3
Scientific Research / Working Group Memberships
2022 - Present
2022 - PresentAnimal Welfare Research Network
https://awrn.co.uk/
University of Bristol, England
2022 - 2023
2022 - 2023