PRODUCTIVITY OF HEIFERS DEPENDING ON TECHNOLOGY FOR REARING AND FEEDING AND MANAHEMENT CONDITIONS

Abstract

It was determined that the level of milk performance of fresh heifers has been affected significantly by the technology of rearing during milk period. Under conditions of Separated Subdivision of NUBIP of Ukraine «Agronomic Research Station» heifers grown using milk replacer during milk period were characterized by higher milk yield when compared to the control group of the same age for the same composition of milk ensuring milk production profitability on the level of 47,1 against 26,1 % in animals reared using whole milk during milk period. Fresh heifers grown under conditions of Separated Subdivisions of NUBIP of Ukraine«Agronomic Research Station» under higher energy level and adequate feeding conditions of PJSC «Agrofort» showed milk yields of 95.4 centners of milk in 305 days of lactation, ensuring income in the amount of 14,4 thousand UAH at profitability level of 67,6 %.