RUDN Journal of Agronomy and Animal IndustriesRUDN Journal of Agronomy and Animal Industries2312-797X2312-7988Peoples’ Friendship University of Russia named after Patrice Lumumba1664The growth of muscles in rams of the romanovsky breed and mixed breed of the Romanovsky and the Romny-MarchNikitchenkoD VКафедра стандартизации, сертификации и ветсанэкспертизы; Российский университет дружбы народов; Russian People's Friendship Universityv.e.nikitchenko@mail.ruNikitchenkoV EКафедра стандартизации, сертификации и ветсанэкспертизы; Российский университет дружбы народов; Russian People's Friendship Universityv.e.nikitchenko@mail.ruBeidemariam Patrik Eiassy-Кафедра стандартизации, сертификации и ветсанэкспертизы; Российский университет дружбы народов; Russian People's Friendship Universityv.e.nikitchenko@mail.ruRussian People's Friendship University150420104697505092016Copyright © 2010,2010A study of the growth of tissues and anatomical groups of muscules was carried out in comparison of 3-, 7- and 9-month aged rams of the romanovsky breed and mixed breed of the romanovsky and the romny-march breeds. It was established, that absolute weight of 9-month the romanovsky breed rams is less than their peers of mixed breed on 5,2%, the carcass weight - on 4,80%, the muscle weight - on 10,41%. The influence of mixing on level of muscles wasn't detected. In post natal development of the muscles functional requirements have relatively bigger influence, than little difference in heredity (breed). The muscle growth strictly goes by genetic sequence in dependence of functional needs.rammixed breedagecrossbreedinggrowthmusclesweightбараныпомесивозрастскрещиваниеростмышцымасса