Abstract:
The economy of livestock production largely depends upon the reproductive efficiency of the
animals. This review is about the reproductive traits of crossbred cattle such as age at first service (AFS), age
at first conception (AFC), number of services per conception (NSPC), days open (DO) and calving interval (CI)
under Ethiopian conditions. All published materials cited in order to provide some information on values of
reproductive traits of crossbred dairy cattle. Finally, factors affecting the reproductive performances of dairy
cattle are also discussed.
