Performance is very important in broiler breeding. Various calculations are made to determine performance all over the world. The most used performance criteria in broiler breeding are the values ​​called FCR and EPEF. Performance is calculated according to these values, which is an important criterion for many companies in the world, and efficiency is evaluated.

Broiler farming in our country is mostly done according to the production method we call contract production. Firms provide chicks, feed and other services to breeders. At the end of the term, it pays the farmer according to the performance. FCR and EFEF are very important in evaluating this performance.
EPEF is the abbreviation of the words European Efficiency Productivity Factor.