ELENA ANATOLYEVNA BABICH*, NABIDULLA AKHANOVICH KIKEBAYEV, VITALYANATOLEVICH RAKETSKY AND ABDRAKHMAN ABDYBEKULY BAISAKALOV
Kostanay Research Institute of Agriculture, Yubileynaya Street, 12, Zarechnyy, 111108, Kazakhstan
*(e-mail : elena.a.babich@mail.ru; Mobile : 8 (71455) 6-20-33); Via Maxim V. Trushin : mtrushin@mail.ru)
(Received : February 3, 2019; Accepted : April 24, 2019)
ABSTRACT
In Kazakhstan, as in most developed countries, a transition to the breeding of Holstein and Holsteinized
cattle is performed in dairy cattle breeding. It became possible due to the extensive use of imported livestock
and seed from getters from different countries. Results of a scientific experiment with the use of three
groups of replacement heifers bred from the Holstein servicing bulls of different breeding showed that
individuals of American and Canadian breeding were superior in growth to the animals of domestic breeding
: by 1.8-2.5% at six months of age and by 7.1 and 2.3% at 18 months of age, respectively. The best values
for indicators of the development of the dairy cattle constitution were observed in the heifers of American
and Canadian breeding. They were taller and their bodies were more prolate compared to domestically
bred animals. The data obtained allow the authors to recommend the use of the semen of Holstein servicing
bulls of American and Canadian breeding for the improvement of the genetic potential of domestically bred
cattle of the black-and-white breed.
Key words : Rearing stock, intra-breed type, Holstein breed, servicing bulls, average daily gain, development