Possibilities for improving reproductive traits in cow-calf system

Abstract

This paper describes production and reproductive parameters determined in some previous studies which were conducted in cow-calf system breeding stocks. The importance of meat production in cow-calf system is highlighted, particularly in the context of current tendencies in cattle production both in EU countries and in our own country. A success in cow-calf production system depends mostly on the fertility achieved in a breeding stock. An ideal fertility in a cow-calf system is one calving a year, i.e. the length of a calving interval of about 365 days. The most important factors which impact bovine female fertility are indicated in this paper as well as a possibility for improving fertility traits in cows raised in cow-calf system. Besides application of certain zootechnical procedures which could improve fertility, the application of hormones for the purpose of induction and synchronization of estrus in cows is essential. The protocols which are most often used for induction and estrus synchronization in cows are presented.