Data derived principally from peripheral tissues (fat, muscle and liver) show that insulin
signals via diverse interconnecting intracellular pathways and that some of the major …

Management, nutrition, production, and genetics are the main reasons for the decline in
fertility in the modern dairy cow. Selection for the single trait of milk production with little …

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

Oestrogens are pivotal in ovarian follicular growth, development and function, with
fundamental roles in steroidogenesis, nurturing the oocyte and ovulation. Infections with …

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 …

Somatotropin (ST), insulin-like growth factor (IGF)-I, and IGF-II affect animal growth and
lactation as well as animal reproduction. Understanding the effects of ST and the IGF on …

Survival and inhibitory factors regulate steroidogenesis and determine the fate of developing
follicles. The objective of this study was to determine the role of transforming growth factor …

Culture of preantral follicles has important biotechnological implications through its potential
to produce large quantities of oocytes for embryo production and transfer. A long-term …

Given the paucity of information on the potential roles of bone morphogenetic proteins
(BMPs) in the ruminant ovary we conducted immunolocalization and functional studies on …

Heifers were assigned either low or high (HE) levels of energy intake and low or high
concentrations of dietary crude protein. The effect of these diets on the plasma …