This study characterizes the changes in ovarian activity during the transitional period of the
ovulatory to the anovulatory season in mares with intact and follicle aspirated ovaries …

Individual follicles were monitored by ultrasonography in 15 mares during the transitional
period preceding the first ovulation of the year and in 9 mares during the first interovulatory …

Ovarian follicles≥ 2 mm were studied in 40 mares by daily ultrasound examinations. There
were significant differences among days of the estrous cycle in the populations of 2–5 mm …

Follicle growth and circulating hormone concentrations were compared between an
interovulatory interval and the first 60 days of the anovulatory season in pony mares. Daily …

The initial portion of the anovulatory season of mares consists of a follicle-receding phase
followed by a mid-anovulatory phase (follicles≤ 20 mm). Follicle dynamics were studied in a …

Deviation in growth rates of the follicles of the ovulatory wave begins at the end of a common
growth phase and is characterized by continued growth of the developing dominant follicle …

Many mares enter a period of spring transition between winter anoestrus and cyclicity when
follicles may reach preovulatory size, yet fail to ovulate. The aim of the present study was to …

The objective of this study was to evaluate the effect of environment on follicular diameter
and repeatability of the size of preovulatory follicles of mares. Temperature, rainfall, and …

Abstract Lactating (n= 21) and non-lactating (n= 20) mares, 3-14 years old, with body
condition between 3.5 and 8.0, were used. Ultrasonic examinations of the ovaries and …

The objectives of the present study were to determine if follicular activity was less in old than
in young mares during the spring transition and if green pasture would hasten onset of the …