In terms of nutrient content, haymaking occupies an intermediate position between the silo and hay, which is why it was called "haymaking", or haying. Unlike conventional silage, the conservation of which is caused by the accumulation of organic acids (mainly lactic), which are formed as a result of fermentation, the conservation of haying is achieved due to the physical dryness of the environment. Taking into account the fact that when laying hay in the polymer sleeves, haying of the first class of quality was obtained, and when laying in the trenches still the second class, in addition to economic efficiency, we also took into account the indicators of quality and nutrition of feed. Therefore, we received an additional 60,000 MJ of pure lactation energy and 1,320,000 MJ of exchange energy, as well as 25,000 kg of crude protein. The analysis did not take into account the fact that these nutrients resulted in an additional amount of animal production and therefore an additional profit. Analyzing the costs above, it should be noted that by reducing feed losses and better feed preservation, without considering the loss of energy nutrition, the technology of harvesting into polymer sleeves is economically feasible
feed, haying, animal husbandry, technology, polymer sleeves, economic efficiency