The development of an ovulatory follicle is a fundamental premise for any reproductive
management program that aims to optimize fertility in cattle. Controlling follicular …

The reproductive efficiency of the herd is correlated with higher productivity in livestock.
Reproduction biotechniques, such as ovulation synchronization protocols, are important to …

The effects of eCG on follicular growth, ovulation, and pregnancy per artificial insemination
(P/AI) in multiparous and primiparous Bos indicus beef cows submitted to timed artificial …

The aim of this study was to evaluate the progesterone (P4) release profile provided by eight
commercial intravaginal P4 devices, as well as the effect of circulating P4 concentrations …

We aimed to compare the effects of use of 1 or 2 mg estradiol benzoate (EB) associated with
an intravaginal progesterone (P4) device for resynchronization of ovulation 14 days after …

Timed AI has become a potential tool to bypass postpartum acyclicity, yet only a small
percentage of the world bovine herd is inseminated. Most females are still subjected to bull …

The objective of the present study was to evaluate the effect of estradiol valerate
administered at the beginning of the ovulation synchronization protocol on the pregnancy …

This study aimed to evaluate the effects of decreasing permanence period of progesterone
(P4) inserts from 9 (9d) to 7 (7d) days in timed-AI (TAI) protocol, as well as their reuse on …

The objective of the study was to simultaneously compare ovarian follicular dynamics and
endocrine parameters of taurine (Holstein; n= 14), zebuine (Gir; n= 5), and bubaline …

The aim of this study was to evaluate circulating progesterone concentration (P4), LH
pulsatility and ovarian follicular dynamics in Nelore (B. indicus) and Holstein (B. taurus) …