The economic efficiency of the use of dwarf pine and lichen in the diets of mixed young Aberdeen-Angus breed in the conditions of the Magadan Region. I.Yu. KUZMINA, E.V. GINTER, A.M. KUZMIN

Abstract

The economic efficiency of the use of dwarf pine and lichen in the diets of mixed young Aberdeen-Angus breed in the conditions of the Magadan Region. I.Yu. KUZMINA, E.V. GINTER, A.M. KUZMIN (Magadan Research Agricultural Institute, Magadan).

For the first time in the conditions of the Magadan Region, studies were carried out on the use of a feed additive (FA) based on dwarf pine (mountain pine) in combination with lichens in the diets of young cattle of the Holstein breed and hybrid young animals of the Holstein and Aberdeen Angus breeds, the use of which has a positive effect on productivity and increases the profitability of production. The experiment was carried out on 40 bull calves aged from 14 to 16 months during the period of stall keeping. By the end of the experiment, the live weight of the experimental bulls at the age of 16 months exceeded the indicators of the control groups: in young Holstein breed by 2.15 kg (0.58 %), in hybrids by 9.55 kg (2.3 %). At 16 months of age, the relative growth rate of the experimental bulls was higher than that of the bulls of the control groups. In Holstein bulls, the growth rate is higher by 0.12 %, in crossbred bulls by 2.57 %.

According to the results of the research, experimental data were obtained that give reason to believe that from crossing purebred Holstein cattle with Hereford bulls in the conditions of the Magadan Region, you can get young animals of the first generation, which differ from young Holstein breed in high growth and development rates. The production of beef from crossbred young stock is characterized by better economic efficiency, compared to fattening super-renovated young Holstein breed. The economic effect of using FA is to reduce the consumption of feed per 1 kg of gain. In the experimental group of a cross between Holstein and Aberdeen-Angus breeds of the 1st generation, this indicator was 6.6 EFU, which is 17.5 % lower than in the control and 20.5 % lower than in the experimental group of Holstein.