Enhancing Reproductive Efficiency by Optimizing Energy Balance and Dry Matter Intake

Abstract

The purpose of this paper is to examine EB and dry matter intake (DMI) and their effects on reproduction and production in the high-producing dairy cow. Proper energy management is a key priority for optimizing milk production and reproduction. The overall objective is to offer feeding and management principles that will promote greater reproductive efficiency. Discussion will focus on the following points:
• Cows in the most NEB will have poor DMI.
• Negative energy balance adversely affects reproduction at several stages of the reproduction-lactation cycle of the dairy cow.
• Early return to estrus is important about early conception.
• Progesterone level during the luteal phase positively influences conception at first service.
• Energy balance fosters the healthy development of follicles and corpora lutea (CL).