Role of progesterone concentrations during early follicular development in beef cattle: I. Characteristics of LH secretion and oocyte quality

FM Abreu, MAC Da Silva, LH Cruppe… - Animal reproduction …, 2018 - Elsevier
Objective was to investigate the effect of different progesterone (P4) concentrations during
early follicular development on luteinizing hormone (LH) secretion and oocyte …

Hormonal combinations aiming to improve reproductive outcomes of Bos indicus cows submitted to estradiol/progesterone-based timed AI protocols

RLOR Alves, MA Silva, CEC Consentini, LO e Silva… - Theriogenology, 2021 - Elsevier
The aim was to study reproductive outcomes of Nelore (Bos indicus) cows submitted to a 7-d
estradiol (E2)/progesterone (P4)-based timed artificial insemination (TAI) protocol, receiving …

Effects of melatonin on the synthesis of estradiol and gene expression in pig granulosa cells

Y Liu, Y Yang, W Li, H Ao, Y Zhang… - Journal of Pineal …, 2019 - Wiley Online Library
The interaction of granulosa cells (GCs) with oocytes is important to regulate follicle
development. The exogenous melatonin promoting the maturation of oocytes by GCs has …

[HTML][HTML] Effect of a puberty induction protocol based on injectable long acting progesterone on pregnancy success of beef heifers serviced by TAI

RS De Lima, T Martins, KM Lemes, M Binelli… - Theriogenology, 2020 - Elsevier
Induction protocols based on progesterone (P4) are used prior to a synchronization program
for timed-AI (TAI) to increase number of pubertal heifers and pregnancy per AI (P/AI) …

Impact of estradiol cypionate prior to TAI and progesterone supplementation at initial diestrus on ovarian and fertility responses in beef cows

T Martins, JP Talamoni, M Sponchiado, JRG Maio… - Theriogenology, 2017 - Elsevier
In cattle, early diestrus progesterone (P4) supplementation modulates endometrial function
to exert pro-and anti-pregnancy establishment effects; specifically, P4 stimulates conceptus …

Coprophagy Prevention Decreases the Reproductive Performance and Granulosa Cell Apoptosis via Regulation of CTSB Gene in Rabbits

G Song, Y Wang, Y Wang, Y Jiang, S Sun… - Frontiers in …, 2022 - frontiersin.org
Coprophagy is an instinctive behavior in rabbit with important effects on growth and
reproductive performance. The underlying mechanism of this effect in rabbit is unknown …

[HTML][HTML] Decreasing from 9 to 7 days the permanence of progesterone inserts make possible their use up to 5 folds in suckled Nellore cows

MH Santos, MVCF Junior, DM Polizel, JPR Barroso… - Theriogenology, 2018 - Elsevier
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 …

Modulation of Cathepsin S (CTSS) Regulates the Secretion of Progesterone and Estradiol, Proliferation, and Apoptosis of Ovarian Granulosa Cells in Rabbits

G Song, Y Jiang, Y Wang, M Song, X Niu, H Xu, M Li - Animals, 2021 - mdpi.com
Simple Summary In goat and sheep, CTSS is reported to be important for the development
and maturation of oocytes by regulating cell proliferation and apoptosis. The purpose of this …

Comparing the effect of estradiol benzoate and 17β-estradiol plus progesterone on follicular turnover and development, and pregnancy outcomes in a timed artificial …

CC Rocha, T Martins, BP Mello, GD de Mello, IG Motta… - Theriogenology, 2022 - Elsevier
The objective of this study was to compare the efficiency of estradiol benzoate (EB) and 17β-
estradiol (E2) associated with progesterone (P4) in a fixed-time artificial insemination (FTAI) …

Early resynchronization of follicular wave emergence among Nelore cattle using injectable and intravaginal progesterone for three timed artificial inseminations

GAA Junior, A Kloster, ÉG de Moraes, IG Motta… - Animal Reproduction …, 2021 - Elsevier
Follicular dynamics and pregnancy per AI (P/AI) of cattle submitted to resynchronization 13 d
after TAI using a progesterone (P 4) insert and supplementary injectable progesterone (iP 4) …