Large inter-species differences have been found in yolk corticosterone amounts in avian
eggs. While some studies have failed to detect significant amounts of corticosterone, in other …

It was recently found that high concentrations of chicken yolk gestagens and gestagen
metabolites hamper corticosterone quantification via immunoassays. However, the situation …

Avian eggs contain a variety of steroid hormones, which have been attributed as a tool for
maternal phenotypic engineering. The majority of studies focuses on androgens, but also …

High corticosterone levels can have deleterious effects in developing avian embryos and
chicks. Therefore, it may be adaptive for avian mothers to reduce corticosterone transfer to …

Previously, we found that experimentally elevated plasma corticosterone was transferred to
egg yolk by female Japanese quail (Coturnix coturnix japonica), and that the chicks hatched …

Birds are discussed as models for prenatal stress. In this study, several experiments were
conducted to gain basic knowledge of if, how, and when maternal adrenocortical activity is …

Maternally derived steroid hormones are known to be present in the yolks of avian eggs;
however, the physiological mechanisms involved in their deposition remain largely …

Corticosterone (CORT) is the dominant plasma glucocorticoid in birds. There has been
increasing interest in the function of CORT in avian egg yolk and in the potential to use …

The effects of age, handling-induced stress, yolk androgens, and body condition on plasma
corticosterone levels were investigated in free-living nestling American kestrels, Falco …

Many environmental conditions elevate plasma corticosterone in laying birds, leading to
elevated hormone accumulation in the egg. We investigated whether maternal yolk …