A complete reproductive cycle of ovulation, conception, pregnancy, and lactation is one of
the most energetically expensive activities that a female mammal can undertake. A …

An increase in pulsatile release of LHRH is essential for the onset of puberty. However, the
mechanism controlling the pubertal increase in LHRH release is still unclear. In primates the …

Energy availability influences reproductive fitness. The activity of the reproductive axis is
sensitive to the adequacy of nutrition and the stores of metabolic reserves. The adipocyte …

During periods of metabolic stress, animals must channel energy toward survival and away
from processes such as reproduction. The reproductive axis, therefore, has the capacity to …

Natural selection has linked the physiological controls of energy balance and fertility such
that reproduction is deferred during lean times, particularly in female mammals. In this way …

Prolonged restriction of dietary energy delays onset of puberty, disrupts cyclicity in sexually
mature animals, and lengthens the postpartum anestrous period in domestic ruminants. One …

Cross-sectional and short-term prospective studies in humans support the concept that low
energy availability, and not other factors associated with exercise, causes the development …

Leptin plays an important role in signaling nutritional status to the central reproductive axis
of mammals and appears to be at least a permissive factor in the initiation of puberty. The …

The focus of this review is the physiological effects of undernutrition on ovarian follicle
growth and the occurrence of ovulation in postpartum cows. Evidence suggests that …

In the present study, we tested the hypothesis that short-term fasting would reduce leptin
gene expression, circulating leptin, and LH pulsatility in prepubertal heifers in association …