TY JOUR TI Effect of an energy-protein concentrate on the reproductive function of heifers of breeding age KW energy-protein concentrate KW heifers of breeding age KW reproductive function JO Adaptive Fodder Production AU Tkachenko, Y.G. AU Bliadze, V.G. AU BARDASh, V.V. PY 2025 IS 2025 PB Federal Williams Research Center of Forage Production and Agroecology