The chemical composition of the muscle and adipose tissues of the Simmental bull calves depending on the cultivation technology

The aim of the researchwas to establish the influence of the technology of growingSimmental bull calveson the chemicalcomposition of muscleandadiposetissues.Experimentalstudies were conductedin the SECof the Zarya-1 industrial complex of the Karachay-CherkessRepublicin2022-2023. Bulls of the Icontrolgroup(15heads) were kept for the entireperiod of cultivation on thefarm.Bulls of the IIexperimentalgroup(15heads) were raised on thefarmuntil the age of 10months,andfrom the 11thto the 15thmonthonmountainpastures,followed by fattening on thefarm.In the diets of young animals of groupI, 2timesmoreconcentratedfeed was consumedthaningroupII.Themuscletissue of steersraisedusingfeedingonmountainpasturescontainedmoremoistureandlessdrymatterat14and18months of ageby1.10and0.84abs.%. The amount of fatin the averagemeatsample of the carcass of steerswasrelativelylow,indicatingcontinuedintensivegrowth of young animals of bothgroups.Animals of groupIIsurpassed their peers of groupI in terms of thecontent of drymatterin the longestbackmuscleby0.50and0.24%, respectively,protein–by0.83and0.84%and were inferiorin terms offatby0.30and0.62%. There were no differencesin the chemicalcomposition of renalfat in animals of the experimentalgroups. The amount of subcutaneousandintermuscularfat in groupIcalveswas56.94%,groupII–51.34%.