Irynei Ratych — Doctor of Agricultural Sciences, Associate Member of the National Academy of Agricultural Sciences

A. V. Hunchak

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Institute of Animal Biology NAAS,
38 Vasyl Stus str., Lviv, 79034, Ukraine

Irynei Ratych is a doctor of agricultural sciences, associate member of NAAS. The main attention was paid to the study of artificial sources of ultraviolet radiation radiation impact on protein metabolism processes in skin and blood of young cattle. One of the stages of research work dealt with studies of metabolism processes and fertility in birds in connection with protein, amino acidic and mineral nutrition of different age, breed and fertility groups of birds. When researching metabolism of mineral sulfur in bird organism, he for the first time conducted a complex study of biochemical mechanisms of exogenous suplhate impact on bird organism with regard for the amount of protein, sulfur-content amino acids and total sulfur in diet by methods of radiology, biochemistry, physiology and nutrition. Theoretical foundations and practical recommendations have been developed on improving efficiency of sodium sulphate use in feed of birds of different age, type and productivity direction.

Key words: Ratych I. B., cattle, poultry, ultraviolet radiation, the mechanism of exogenous sulfate on various poultry, eucalyptus, iodine, trace elements aquacitrates

1. Golovach VM, Ratych IB. Research soluble proteins skin young cattle by ultraviolet radiation in vivo and in vitro. Biochem. J. 1975; 47 (1). (in Ukrainian)
2. Golovach VM, Ratych IB. Studies of nitrogen compounds in the blood and skin of animals under UV irradiation. Agricult. Sci. 1970: 8. (in Ukrainian)
3. Lahodyuk PZ, Ratych IB, Nazarkevych LE. Using the conversion of sulfur compounds and the body of chickens. Applied Biochem. Microbiol. 1984; 20 (2). (in Russian).
4. Ratych IB. The biological role of sulfur and sulfate metabolism in poultry. Lviv, 1992: 169 p. (in Ukrainian)
5. Ratych IB, Kyryliv YaI. Lipid composition of oocytes and egg yolk of laying hens in connection with oogenesis and lipid nutrition. Bìol. Tvarin. Lviv, 2002; 4 (1–2). (in Ukrainian)
6. Karpa I, Ratych I, Stojanovska G, Andrejeva L, Borowiec F. Influence of diet change on the antioxidant status and productivity of laying hens. Anim. Sci. 2004; 4 (2). (in Ukrainian)
7. Barteczko J, Kapkowska E, Ratych I, Borowiec F, Augustyn R. The effect of supplementing vitamin C and sodium to diets on the fatty acid profile of profile of goose egg yolk lipids. Anim. Feed Sci. 2005; 14 (1). https://doi.org/10.22358/jafs/70697/2005
8. Ratycz I, Karpa I, Borowiec F. Procesy peroksydacji lipidów u kur niosek, embrionów i kurczǎ w zaleźności od skladu dawki. Roczniki Naukowe Zootechniki. Kraków, 2005; Z. 22. (in Polish)