Psychological stress can be defined as any uncomfortable'emotional experience'
accompanied by predictable biochemical, physiological and behavioural changes or …

Identification of novel neurohormones that regulate the reproductive axis is essential for the
progress of neuroendocrinology. The decapeptide gonadotropin-releasing hormone (GnRH) …

Gonadotropin-inhibitory hormone (GnIH) is a hypothalamic neuropeptide that inhibits
gonadotropin secretion in birds and mammals. To further understand its physiological roles …

Photoperiodism is the ability of plants and animals to measure environmental day length to
ascertain time of year. Central to the evolution of photoperiodism in animals is the adaptive …

A hypothalamic neuropeptide, gonadotropin-releasing hormone (GnRH), is the primary
factor regulating gonadotropin secretion. An inhibitory hypothalamic neuropeptide for …

Gonadotrophin‐releasing hormone (GnRH) is the primary hypothalamic factor responsible
for the control of gonadotrophin secretion in vertebrates. However, within the last decade …

The environment which living organisms inhabit is not constant and many factors, such as
light, temperature, and food availability, display cyclic and predictable variations. To adapt to …

The pineal hormone melatonin regulates testicular function through the hypothalamic-
adenohypophyseal axis. In addition, direct actions of melatonin in somatic cells of the testis …

Photoperiod is essential in manipulating sexual maturity and reproductive performance in
avian species. Light can be perceived by photoreceptors in the retina of the eye, pineal …

Animals inhabiting temperate and boreal latitudes experience marked seasonal changes in
the quality of their environments and maximize reproductive success by phasing breeding …