Öz
Reproductive success is the most important component of a profitable cattle livestock enterprise. The most important aim in dairy or beef cattle is the reproductive success. The profitability of business in dairy cattle breeding is measured by the milk yield and in beef cattle breeding; it is measured by the speed of live weight gain. For both cases it is essential for cattle to give birth once in a year. This can only be achieved with a proper reproduction management. Therefore, these parameters are utilized to measure the reproductive performance of cattle. In this review, the effect on fertility of reproductive parameters, which hold and important place in the management of the cattle enterprise, is discussed.