In beef cattle, the ability to conceive has been associated positively with size of the
preovulatory follicle (POF). Proestrus estradiol and subsequent progesterone concentrations …

In cattle, pro-oestrous oestradiol and dioestrous progesterone concentrations modulate
endometrial gene expression and fertility. The aim was to compare the effects of different …

Previous research from our laboratory in beef cattle suggests that ovarian follicle maturity
and subsequent fertility is influenced by length of proestrus across a range of follicle sizes …

This experiment was conducted to determine the effect of altering preovulatory estradiol
concentrations, through manipulation of length of proestrus, on peripheral progesterone …

The goal of this study was to determine the effects of the length of the preovulatory phase on
genital blood flow and mRNA expression of endometrial hormone receptors in cattle (Bos …

In beef cattle, proestrus estradiol and subsequent progesterone (P4) concentrations can
regulate the endometrial characteristics and thereby determine maternal receptivity toward …

The objective was to determine the effect of plasma progesterone concentration and the
duration of proestrus during growth of the ovulatory follicle on fertility in beef cattle. Heifers …

Induced ovulation of small dominant follicles (SF,< 12 mm; CO-Synch protocol) in
postpartum beef cows resulted in formation of corpora lutea (CL) that exhibited a delayed …

Long-acting injectable progesterone (iP4) supplementation during early diestrus is a
strategy to increase conception rates in cow-calf beef operations. However, iP4 treatment …

The objective of this study was to determine the effects of low versus physiologic plasma
progesterone concentrations during the ovulatory wave on fertility in cattle. Suckled beef …