DOI: 10.32900/2312-8402-2023-130-178-190

Piskun Viktor,
Doctor of Agricultural Sciences, Senior Researcher,,
Zolotarov Andrii,
Candidate of Agricultural Sciences,,
Yeletska Larisa,
Livestock farming institute of NAAS of Ukraine,
Lavrynenko Yulia, 0009-0008-1418-7087,
Main Department of Statistics in the Kharkiv Oblast,
Kharkiv, Ukraine,
Yatsenko Yury,
Candidate of Technical Sciences,,
Poltava State Agrarian University,
Poltava, Ukraine

Keywords: livestock by-products, nutrient digestibility, greenhouse gases, separation efficiency, liquid, solid fractions

Climate change due to human activity in developed countries leads to numerous cases of deterioration of living conditions in all regions of the planet. However, it is possible to change this situation. To do this, it is necessary to maintain the global temperature at today’s level by reducing emissions of greenhouse gases into the atmosphere. Agriculture makes a significant contribution to anthropogenic global warming, particularly livestock. Animal manure and the soils cultivated with it are the most     important sources of emissions from livestock after intestinal methane. Experts estimate that nitrous oxide and methane produced in pastures and manure processing systems can account for up to a quarter of on-farm emissions, so it is important to identify  strategies to reduce the flow of these gases. To solve the problem of global warming, it is necessary to control a number of positions, one of which is the assessment of actual emissions of greenhouse gases and, in particular, in the production of livestock      products.

The article presents a new approach to increasing the accuracy of greenhouse gas emissions calculations. To determine the gross energy in the methodology of effective practice, the values of the indicators of clean energy are used to maintain the needs of animals for the continuation of vital activities and taking into account their productivity. When expanding the approaches for obtaining raw data for determining greenhouse gas emissions from by-products of livestock farming to determine gross energy, use the indicators of the content of crude protein, crude fat, crude fiber, and non-nitrogenous extractives in the diet.

The yield of animal excrement is calculated based on the weight and composition of the feed, taking into account the digestibility of the organic matter of the feed and the relative content of organic matter.

When separating livestock by-products (organic waste) into solid and liquid fractions, the actual data characterizing the quality of separation on individual          elements of the technological line are the mass and moisture content of effluents entering processing and obtained at the exit, the mass and moisture content of the liquid fraction, and the mass and moisture content of the solid fraction.


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