EN
The aim of the article was to determine the influence of agricultural farm specialization on effects of scale as obtained by such farm. A farm from Strzelno commune will serve as an example with data quoted from the years 2010-2016, when the farm conducted its business activities concentrating on the production of fattening cattle. The article will examine increase of production scale and its influence on earned income from one piece of cattle and the influence on direct and unit costs as well as the relation between incurred costs and earned profits. The trend will be analysed, which will allow me to determine yearly changes in cost indices and productivity in the analysed farm.