| Popis: |
Bull-calves of the Kazakh white-headed breed play leading role in the development of beef cattle farming in Kazakhstan. Therefore, its improvement affects the production volume of high quality beef. The article describes some technological aspects of livestock management in the semidesert zone of the Naryn Sands of Kazakhstan. The authors determined the level of economic traits of the Kazakh white-headed bull-calves, their clinical and physiological parameters as well as the characteristics of hair-coat cover under the conditions of semidesert zone of the Naryn Sands. Three experimental groups of 10 calves in each group were selected for the tests. Bull-calves were selected based on the method of group analogues. According to the research conducted, when implementing management based on traditional technology of livestock, adopted for the Naryn Sands climatic conditions, it is recommended to feed bull-calves aged from 9 to 12 months with supplementary 3 kg of concentrated feedstuff during the growing period to achieve high live weight. Besides, based on data analysis, it was concluded that under the conditions of the Naryn Sands, there is no need to build facilities for beef cattle management that is economically advantageous. The analysis of the obtained data on hair-coat covering and clinical and physiological parameters suggests strong adaptive capacity of the Kazakh white-headed bull-calves at the conventional management technology typical for the Naryn Sands. |
