GREENHOUSE GAS EMISSIONS FROM BY-PRODUCTS DURING CHAROLET MEAT BREEDING

Abstract

It should be noted that animal husbandry is widespread in all regions of Ukraine. The article examines greenhouse gas emissions from beef cattle production in the winter. At the beginning of 2019, the herd of Charolais beef cattle had about 485 heads, including 150 cows, heifers - 41 heads, breeding bulls - 2 heads, fattening cows - 5 heads and young animals of different ages - 287 heads of different age groups consumed rations according to the sex and age of the groups. Emissions were determined taking into account the structure of the herd, feed consumption and the obtained data of gross energy consumption by different sex and age groups of cattle. The consumed energy was determined taking into account the amount of feed consumed and the content in it of mass fractions of crude protein, crude fat, crude fiber and nitrogen-free extractives. Based on gross energy consumed by animals and traits of by-products, the values of methane emissions, direct and indirect nitrogen emissions were determined both in absolute values and in specific ones per conventional head and CO2 equivalent for the winter period of the year. With a herd of 485 heads, the animals consume 97416592.72 MJ of energy per day, which is determined taking into account the mass fractions of crude protein, crude fat, crude fiber and without nitrogenous extractives. The yield of by-products per day is 18774 kg, for the whole winter period - 1107666 kg. It is established that in the production of beef from Charolais beef cattle in winter in the Kharkiv region, Ukraine greenhouse gas emissions in the preparation of organic waste amounted to 66157.566 kg in CO2 equivalent per conventional head, while emissions from the herd for the winter was: methane – 63887.491 CO2 kg, and direct and indirect nitrogen emissions in CO2 equivalent – 34.047 and 2236.028 kg, respectively.