Kyryliv Bogdan
Dr.Sc. (Agricultural Sciences), Senior Researcher
Leading Researcher, Laboratory of Physiology, Biochemistry and Nutrition of Poultry
In 2000, successfully graduated from the Faculty of Veterinary Medicine at the Stepan Gzhytskyi Lviv Academy of Veterinary Medicine, earning a degree in Veterinary Medicine.
2000–2003: Completed postgraduate studies at the Institute of Animal Biology of the NAAS.
Scientific Advisor: Dr. Iryney Ratych, Corresponding Member of the NAAS, Doctor of Agricultural Sciences, Senior Researcher.
2004: Successfully defended a Ph.D. dissertation titled "Lipid and Fatty Acid Composition of Tissues in Hens, Embryos, and Day-old Chicks under Different Dietary Regimes" and was awarded the degree of Candidate of Agricultural Sciences.
2010: Conferred the academic title of Senior Researcher.
2019: Defended a doctoral dissertation titled "Species, Ontogenetic, and Organ-Tissue Characteristics of Protein Metabolism and the Activity of Hydrolytic Enzymes in Poultry under the Influence of Alimentary Factors", specializing in 03.00.04 – "Biochemistry". Scientific Consultant: Dr. Alla Hunchak, Doctor of Agricultural Sciences.
Academic Degree: Awarded the degree of Doctor of Agricultural Sciences.
Professional Experience:
2000: Began professional career at the Institute of Animal Biology of the NAAS, initially serving as a Leading Specialist.
2003–2008: Following the completion of postgraduate studies, held positions as a Junior Researcher and subsequently as a Research Scientist.
2008–2021: Promoted to the position of Senior Researcher.
Since 2021: Serving as a Principal Researcher in the Laboratory of Physiology, Biochemistry, and Poultry Nutrition at the Institute of Animal Biology of the NAAS.
Scientific activities are focused on conducting fundamental and applied research in the biochemistry and physiology of agricultural poultry, specifically targeting:
The development of methods to stimulate metabolic processes, immunobiological reactivity, and the adaptive and reproductive capacities of poultry through the use of biogenic additives of various origins.
The study of conditions to enhance the efficient utilization of dietary nutrients (depending on ration composition) and their transformation into components of poultry meat and eggs, with the goal of improving the biological and nutritional value of poultry products while ensuring environmental sustainability.
Research Interests:
Animal Biochemistry and Nutrition.
Recent publicationsHunchak А, Stefanyshyn О, Sirko Y, Kyryliv B, Ratych I, Hunchak V, et al. Innovative feed additives in the optimization of laying hen diets. Regul Mech Biosyst. 2025 Nov 12;16(4):e25204. https://doi.org/10.15421/0225204 (Q4).
Motko, N. R., Tkachuk, V. M., Kyryliv, B. Y., Ohorodnyk, N. Z. Influence of feeding with fatty acids emulsions on their content in sheep wool. Regulatory Mechanisms in Biosystems, 2025. 16(2), e25055. https://doi.org/10.15421/0225055 (Q2)
Tkachuk V, Kyryliv B, Ohorodnyk N, Motko N (2025). Evaluation of surface lipids of sheep wool following dietary inclusion of emulsified fatty acid complex.Online J. Anim. Feed Res., 2025. 15(4): 220-227. https://dx.doi.org/10.51227/ojafr.2025.25 (Q3)
Tkachuk V, Kyryliv B, Ohorodnyk N, Motko N. Internal lipids of sheep wool when a water-soluble complex of fatty acids is included into their diet. Biol.Stud., 2025. 19(3): http://dx.doi.org/10.30970/sbi.1903.834 (Q4)
Kyryliv B, Hunchak A, Ratych I, Gutyj B. Influence of alimentary factors on the absorption of feed nutrients and poultry productivity. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series «Agricultural Sciences», 2021; 23(95): 3-14. https://doi.org/10.32718/nvlvet-a9501
Ratych I, Hunchak A, Sirko Y, Stefanyshyn O, Kyryliv B, Chomyk I. Laying hens productivity and quality of eggs at changing the qualitative and quantitative composition of feed protein. The Animal Biology, 2022; 24(3): 27-32. https://doi.org/10.15407/animbiol24.03.027.
Hunchak A, Stefanyshyn O, Sirko Y, Kyryliv B, Ratych I. Influence of exogenous enzymes and different forms of Sulfur in the diets of broiler chickens on productivity and quality of poultry products. The Animal Biology, 2024; 27(4): 49-54. https://doi.org/10.15407/animbiol26.04.049.
Tkachuk, V.; Ohorodnyk, N.; Kyryliv, B.; Motko, N.; Pavkovych, S.; Dudar, I. Productivity, chemical composition and physical properties of wool under conditions of feeding ewes with increased levels of mineral elements. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Agricultural Sciences. 2024, 26(101), с 223-228. https://doi.org/10.32718/nvlvet-a10135
Motko, N.R.; Tkachuk, V.M.; Ohorodnyk, N.Z.; Kyryliv B. Mitotic processes in hair follicles and the morphostructure of sheep skin upon inclusion of a water-soluble fatty acid complex into their diets. Ukrainian Journal of Veterinary and Agricultural Sciences. 2025, 8(1),с 90-94. https://doi.org/10.32718/ujvas8-1.13.