Regulation of ovarian activity is an integrated process encompassing both extraovarian
signals and intrafollicular factors. Initiation of primordial follicle growth and the early stages …

Only a fraction of oocytes present in the ovaries at birth are ever ovulated during the lifetime
of a female mammal. In vitro maturation (IVM) offers the possibility to exploit what is a largely …

Genetic correlations between milk yield and reproductive measures in dairy cows are
unfavourable. This suggests that successful selection for higher yields may have led to a …

Methods to predict numbers of healthy oocytes in the ovaries of young adults could have
important diagnostic relevance in family planning and animal agriculture. We have observed …

Ovulatory response to the first GnRH of Ovsynch is the critical determinant for successful
synchronization of ovulation in dairy cows. Our objective in this study was to develop a pre …

Follicle deviation is proposed to be the eminent event in follicle selection in monovular
species. At deviation, the largest follicle establishes dominance apparently before the …

The extent, causes, and physiological significance of the variation in number of follicles
growing during ovarian follicular waves in human beings and cattle are unknown. Therefore …

The growing follicles develop from a reserve of primordial follicles constituted early in life.
From this pre-established reserve, a second ovarian reserve is formed, which consists of …

The mechanism whereby the inherently high variation in ovary size and the total number of
high-quality oocytes in ovaries (ovarian reserve) impact on ovarian function and fertility …

BACKGROUND The significance of the high variation in numbers of follicles produced
during reproductive cycles in humans and cattle is unknown. METHODS We selected beef …