Fattening of culled cattle with the use of complex feed additives in the diets in the conditions of Yakutia

Abstract

The paper presents the results of a study to determine the effectiveness of complex feed additives in the fattening of culled cattle in the conditions of Yakutia. To conduct the experiment, 3 groups of culled cattle were formed. The use of complex feed additives from local natural raw materials in the feeding of culled cattle on fattening allowed increasing the live weight by 1.58% and 0.26%. To determine the safety of experimental feed additives, the clinical parameters of the body of experimental animals were studied. It was found that there was no significant difference between the groups and all the indicators were within the normal range, which in turn proves the harmlessness of complex feed additives. At the end of the experiment, a control slaughter of experimental animals was carried out. When analyzing the data of animal slaughter, it was found that the experimental groups were superior to the control group in terms of parameters: the mass of the steam carcass by 5.53% and 3.61%, the mass of visceral fat by 9.39% and 1.77%, the slaughter mass by 6.07% and 3.87%, the slaughter yield by 2.76% and 2.06%. Next, the organoleptic evaluation of meat products was performed. According to the results of the evaluation of boiled meat, it was found that the experimental groups exceed the control group by 12.92% and 8.33%, and exceed the roasted meat by 11.87% and 8.19%. Thus, complex feed additives showed effectiveness in fattening culled cattle in the conditions of Yakutia.