The idea that there is an impenetrable barrier that separates the germline and soma has
shaped much thinking in evolutionary biology and in many other disciplines. However …

In vertebrate species that ovulate one or a limited number of ovarian follicles per
reproductive cycle, the cellular processes by which follicle selection (cyclic recruitment) is …

Physiological Adaptations for Breeding in Birds is the most current and comprehensive
account of research on avian reproduction. It develops two unique themes: the consideration …

Poultry production is linked with the use of veterinary medicinal products to manage
diseases. Ionophore coccidiostats have been permitted for use as feed additives within the …

Testosterone is a key hormone for the development of secondary sexual characters and
dimorphisms in behavior and morphology of male vertebrates. Because females often …

Background Follicle selection in chickens refers to the process of selecting one follicle from
a group of small yellow follicles (SY, 6–8 mm in diameter) for development into 12–15 mm …

While photoperiod has been generally accepted as the primary if not the exclusive cue to
stimulate reproduction in photoperiodic breeders such as the laying hen, current knowledge …

Chicken meat production relies on successful reproduction in broiler breeders. Challenges
with feed restriction and metabolic dysregulation of reproduction in broiler breeders warrant …

Chicken ovaries are known to develop asymmetrically and only the left ovary fully develops.
Although both have been greatly investigated, a gap in scientific reports is still felt between 2 …

Insulin-like growth factor 1 (IGF1) is an essential regulator of mammalian follicle
development and synergizes with follicle-stimulating hormone (FSH) to amplify its effects. In …