INFLUENCE OF BIOLOGICAL PREPARATIONS ON CONSERVATION OF GALEGA ORIENTALIS LAM

Galega orientalis Lam. is a valuable forage crop due to its early regrowth, rapid growth, long-term use, high productivity and nutritional value. Given the uniqueness and wide range of applications, the study of the technology of harvesting haylage from this grass is very relevant. The purpose of the work is to conduct a comparative assessment of the process of preserving haylage from Galega orientalis in laboratory model experiments using the bio-preservative Bioamid-3 and plant growth regulator Melafen, as well as their complex application (Bioamid-3 + Melafen). The research was carried out in 2018-2019 in the department of agrobiological research Tatar Scientific Research Institute of Agriculture, Kazan Scientific Center, Russian Academy of Sciences. According to the scheme of an experiment, in samples of green mass Galega orientalis Lam. the studied preparations were introduced: Bioamid-3 – 2.5 g/t, Melafen - 0.1 g/t; were tamped into hermetically sealed vessels with a capacity of 3.0 liters and sent for storage in a darkened room. Opening and further determination of the chemical composition of haylages according to the methods E.A. Petukhova’s was carried out on the 60th day of conservation. As a result of the experiments, it was found that due to the addition the drug Bioamid-3 in haylage, the preservation of crude protein increased by 3.55% (p <0.05), crude fiber - 0.23%, nitrogen-free extract (NFE) - 7.62% (p <0.05), crude fat - 1.41% (p <0.05) and metabolic energy concentration - 13.76% (p <0.05) in relation to the control sample without adding a preservative. Use of the combination Bioamid-3 + Melafen, along with an increase in crude protein by 1.9%, NFE - 3.71%, crude fat 0.74%, metabolic energy 12.59% (p <0.05) made it possible to achieve the optimal value pH at 4.45 and an increase in the accumulation of organic acids by 0.44% (p <0.05) in the finished feed