THE RESULTS OF APPLYING PROGRESSIVE TECHNOLOGIES IN THE PRODUCTION OF HYDROPONIC GREEN FEEDING MASS IN CALVES GROWING
The article is focused on the use of hydroponic green feeding mass (HGFM), obtained by means of improved technology, in the rations of replacement calves under the conditions of stable management in the South Urals. The above technology includes the use of liquid organic fertilizers as a watering solution. The liquid fertilizer is obtained by complex impact of alkaline water solution and ultrasound on the wormy compost. Analysis of the hydroponic green feeding mass included determination of its chemical composition and nutrition value, as compared with similar feeds having been grown on the liquid base (basic variant) and traditional mineral solution (control samples). The impact of HGFM on farm animals was tested in the course of the scientific - production experiment on the basis of the farm enterprise LLC «Nizhnyaya Sanarka», Troitsk district, Chelyabinsk region. The HGFM was produced on the experimental unit developed by the scientists of Chelyabinsk State Agricultural Academy. The HGFM was included into the rations of calves in the amount of 35% of the total haylage mass. The results of calves' weighing and calculation of their average daily gain showed that the total gain of calf fed on the HGFM was 23-25% higher and the average daily gains increased at 7-9%. Besides, the feeds outlays turned to be lower at 6-8%. The scientific-production experience confirmed the feasibility of including the HGFM in the rations of sucking calves. The use of the above feed during the winter stable period has positive influence on the health condition of young cattle and is substantiated both from the technological and economical viewpoints.