Authors: V. I. KOSILOV, doctor of agricultural sciences, professor, S. S. ZHAIMYSHEVA, candidate of agricultural sciences, associate professor, S. I. MIRONENKO, doctor of agricultural sciences, Orenburg State Agrarian University (18 Cheliuskintsev Str., 460014, Orenburg), O. G. LORETTS, doctor of biological sciences, associate professor, O. A. BYKOVA, doctor of agricultural sciences, associate professor, Ural State Agrarian University (42 K. Liebknekhta Str., 620075, Ekaterinburg; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.), B. S. NURZHANOV, candidate of agricultural sciences, senior researcher, Scientific Center for Biological Systems and Agricultural Technologies of RAS (29 9 January Str., 460000, Orenburg), I. R. GAZEEV, candidate of agricultural sciences, dean of the faculty of food technologies, Bashkir State Agrarian University (34 50-letiya Oktyabrya Str., 450001, Ufa)
Keywords: beef cattle breeding, Simmental, limousine breed, heifers, reproductive ability.
Abstract: In beef cattle the last time are widely used genetic resources of the Simmental breed. This is due to the high productive qualities, longevity Simmental. At the same time, the cattle of this genotype is not fully adapted to the breeding technology of beef cattle. Animals are not high enough mothering and calving difficulty. In this regard, the most effective breeding technique is the use of Simmental interbreeding as the mother base. Cattle of specialized meat breed – Limousin-became very popular in beef cattle breeding in many countries. Animals are characterized by high meat and maternal qualities easy calving. At the same time, a characteristic feature of the animals of this genotype is not high enough adaptation to the conditions of the sharply continental climate. Promising in this regard is the crossing of Simmental cattle with limousines and the creation on this basis of crossbred breeding herds in order to determine the effectiveness of crossing these breeds of animals, we have studied the reproductive qualities of the initial breeds of animals and their hybrids of different generations. The results of stud- ies indicate a fairly high level of reproductive abilities of young crossbreeds. As a result, the crossbred breeding stock obtained by crossing cows of Simmental breed with limousines can be effectively used in the formation of crossbred, uterine herds.
