This paper examined the relationship existing between scrotal morphometric characteristics and reproductive potentials of rams. Reproductive organs have essential roles in the reproduction of species. Reproductive efficiency and increased production can only be achieved by understanding the morphometric characteristics of these very important and sensitive organs of reproduction. Sperm producti...

Introduction Reproduction efficiency of the herd is optimal when replacement heifers attain puberty as yearlings and calve at 2 years of age, and cows are able to become pregnant early during the annual breeding season (Bagley, 1993). Nutrition is the environmental factor that most influences reproductive efficiency of cattle (Bagley, 1993; Diskin et al., 2003); therefore, beef females should b...

Bos indicus cattle, the preferred genetic group in tropical climates, are characterized by having a lower reproductive efficiency than Bos taurus. The reasons for the poorer reproductive efficiency of the Bos indicus cows include longer lengths of gestation and postpartum anestrus, a short length of estrous behavior with a high incidence of estrus occurring during the dark hours, and puberty at...

Early identification of nonpregnant dairy cows post breeding can improve reproductive efficiency and pregnancy rate by decreasing the interval between AI services and increasing AI service rate. Thus, new technologies to identify nonpregnant dairy cows early after artificial insemination (AI) may play a key role in systematic management strategies to improve reproductive efficiency and profitab...