Effects of dietary 20-hydroxyecdysone supplementation on whole-body protein turnover in growing pigs

¹ L.K. Ernst Federal Science Center for Animal Husbandry All-Russian Research Institute of Animal Physiology, Biochemistry, and Nutrition, Institute village, 249013, Borovsk, Kaluga Region, Russia
² Tambov State University named after G.R. Derzhavina, st. International, 33, 392024, Tambov, Russia

^* Corresponding author: erimbetovkt@mail.ru

Abstract

One of the approaches to creating biologically active additives for use in pig breeding can be the use of 20-hydroxyecdysone regulating protein metabolism in piglets. The purpose of the work is to assess the effect of 20-hydroxyecdysone on turnover of protein in piglets. The experiment was carried out on barrows (♂ Danish Yorkshire × ♀ Danish landrace) to achieve a live weight of 53-62 kg. At the age of 60 days, 2 groups of piglets were formed: control and experimental. Piglets of the experimental group were injected with 20-hydroxyecdysone at a dose of 1.6 mg / kg body weight. In piglets of the experimental group, in comparison with the control, a decrease in the excretion of nitrogen in the urine was noted (by 26.8%, P <0.05). Nitrogen deposition was higher in piglets of the experimental group by 19.0% (P <0.001) compared with the control. 20-hydroxyecdysone contributed to increased protein deposition in the body of piglets due to protein synthesizing activity. Thus, the use of 20-hydroxyecdysone in pigs increases the efficiency of using amino acids for the synthesis and deposition of proteins in the body.