• Yu. P. Polupan
  • O. V. Boiko


Leading researcher of the laboratory of biotechnology of reproduction of the Institute of animal breeding and genetics nd. a. M.V.Zubets of NAAS Stepan Demchuk on November 27, 2019 turned 70 years old. He was born in the village. Pripyat of Lyuboml district of Volyn region. After graduating from Shatsk secondary school he entered the Ukrainian Agricultural Academy, which he graduated in 1971 with a major in Veterinary Science. He then worked as a veterinarian for the "Chervona zirka" state farm, then as a chief veterinarian of the state farms. Comintern and "Bolshevik" Baryshevsky district of Kyiv region, and from 1976 to 1978 – in the Pereyaslav-Khmelnitsky state plant at the post of senior zootechnic breeder. From 1978 to 1994 he worked at the Ukrainian Research Institute for breeding and artificial insemination of cattle as a junior researcher. In 1994–1996 he was a leading researcher at the "Vorzel" research station. Since 1996 he has been working as a senior scientist and since 2000 – a leading researcher at the Institute of animal breeding and genetics nd. a. M.V.Zubets of NAAS.

In 1997, he defended his dissertation for the Candidate of Agricultural Sciences degree on “Restoration of reproductive function in cows of Ukrainian meat breed in connection with the course of childbirth”. The scientific creativity of a scientist exceeds 100 published works in Ukraine and abroad, including books, methodical recommendations, patents and instructions on reproduction and breeding of cattle. In particular, he co-authored books on the Strategy for the Development of Meatbreeding in Ukraine in the Context of National Food Security (Kyiv, 2005), The Scientific Principles of Breeding Livestock of Meat Breeds (Kyiv, 2017), "Breeding, genetic and biotechnological methods for improving and preserving the gene pool of breeds of farm animals" (Kyiv, 2018), articles in scientific publications of Belarus, the Russian Federation, Moldova and Ukraine.

For a long time, Stepan Yukhimovich has been providing advisory and practical assistance to farms, has been actively involved in the creation of high-performance dairy and beef cattle herds, in the training and retraining of livestock specialists, and has repeatedly been a judge of All-Ukrainian artificial insemination operators competitions. Under his scientific guidance, K. J. Skoryk defended his dissertation for the degree of Candidate of Agricultural Sciences on "Economic and biological features of goat breeders of foreign breeding in Ukraine".

High professionalism, deep knowledge in the field of biotechnology of breeding animals, butchery, humanity, modesty and honesty have formed in the staff of the institute and scientific community of Ukraine Stepan Yukhimovich deserved authority. The staff of the institute, where the jubilee has been working for over 40 years, sincerely congratulates the dear Stepan Yukhimovich and wishes him good health, further creative success, scientific and human longevity!

How to Cite
Polupan, Y. P., & Boiko , O. V. (2019). STEPAN YUHYMOVYCH DEMCHUK – RECOGNIZED AUTHORITY IN THE FIELD OF ANIMAL REPRODUCTION. Animal Breeding and Genetics, 58, 21-22.
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