Published in Scientific Papers. Series D. Animal Science, Vol. LXVI, Issue 2
Written by Mariia VOROBEL, Oleh KLYM, Vasyl KAPLINSKYI, Luchka IVAN, Stepan GRABOVSKYI, Pruduys TARAS, Halyna BILOVUS
Pig farming is one of the most productive and early maturing branches of animal husbandry, which plays an important role in the meat balance of the state. Simultaneously with the production of the main products a significant amount of by-products of animal origin accumulates. A large number of pollutants of various origins are released into the atmosphere during the decomposition, including greenhouse gases, which causes pollution of the soil, surface and underground waters. Therefore, the basis of the planned research was to find out the emission of the greenhouse gases from the pig manure under the influence of different doses of inorganic substances (natural sorbents). According to the results of the conducted research, it was established that the level of release of the studied gases – methane (CH4), carbon dioxide (СО2) and nitrogen oxide (NO) from the pig manure (in vitro) when using different doses of natural sorbents – vermiculite and saponite with a simultaneous shift of the pH to the acidic side respectively, was 5.31 and 5.67, against 6.2–6.5 in the control. In a comparative assessment of the effect of the investigated sorbents on the emission of greenhouse gases from the pig manure, it should be noted that the level of release of CH4 from the substrate in the variants with vermiculite decreases to 18.6%, CO2 to 37.5%, and NO to 25.7%, and with saponite, respectively up to 7.2%, 20.2 and 22.3%. Therefore, the obtained data indicates the expediency of the usage of the studied sorbents, in particular vermiculite, to reduce the emission of greenhouse gases during the storage of the manure in the storage facilities (lagoons) and directly in the premises, which will make it possible to minimize the negative impact of intensive pig farming on the state of the environment.
[Read full article] [Citation]
