Efficiency of various methods of raising breeding replacement young animals of the cattle

The aim of this research was to determine the effectiveness of various methods to raise replacement young cattle. The experimental part of the research was carried out in the LLC “Orel Leader” (OOO “Orel Leader”) Hotynetsk Farm firm branch No. 4. The calves of control and experimental groups in the first 14 days of life were grown in a heated room. From the age of 15 days old, the calves of the control group were put into the boxes where they were kept as a whole group. The calves of the second experimental group were put into individual houses “Plasto”. The calves of the third experimental group - to the group houses “Iglus”. Individual and group houses are located on the territory of the farm, on the leeward. As the result of the studies, it was found out that at the beginning and at the end of the experiment, the microclimate parameters for all the investigated methods of calf keeping had a deviation from optimal indicators. So, the indicators of microclimate parameters in individual houses “Plasto” and group houses “Iglus” depended on the environment. The living weight at the end of the experiment for the calves kept in individual houses exceeded this figure compared to the animals of the control group by 4.5% with reliable differences, and for the calves kept in group houses - by 5.1% with reliable differences. The absolute and average daily growth for the period of experiment for the animals of the 2nd experimental group was 7.1% higher compared to the control one. For the calves of the 3rd experimental group it was by 8.1% higher compared to the control one. When keeping calves in individual houses, the cost of 1 kg in live weight gain is reduced by 7.6% compared to the control, and when keeping calves in group houses the cost is reduced by 8.8%.