The discovery of progesterone (P4) and elucidation of the mechanisms of P4 action have an
important place in the history of endocrinology and reproduction. Circulating P4 …

Timed-AI after synchronization of ovulation has become one of the most used reproductive
technologies developed during the past 40 years. Various adaptations of this technology are …

The relationship between energy status and fertility in dairy cattle was retrospectively
analyzed by comparing fertility with body condition score (BCS) near artificial insemination …

Simple Summary Reproductive efficiency is critical for profitability of dairy operations. The
first part of this manuscript discusses the key physiology of dairy cows and how to practically …

The main objective of this study was to evaluate the effect of a second treatment with
prostaglandin F 2α (PGF) during Ovsynch on regression of the corpus luteum (CL) and on …

Our objective is to overview the research that lead to the development of fertility programs for
high-producing lactating dairy cows using only GnRH and Prostaglandin F 2α (PGF 2α) …

This comprehensive review explores the complex processes of reproduction, pregnancy
establishment, and pregnancy diagnostic methods in cattle, sheep, goats, swine, horses …

Ovsynch-type synchronization of ovulation protocols have suboptimal synchronization rates
due to reduced ovulation to the first GnRH treatment and inadequate luteolysis to the …

The objective of this study was to compare the economic outcome of reproductive programs
using estrus detection (ED), timed artificial insemination (TAI), or a combination of both (TAI …

Ovulation to the first GnRH injection of Ovsynch-type protocols is lower in cows with high
progesterone (P4) concentrations compared with cows with low P4 concentrations …