This chapter highlights the involvement of hormones, genes/proteins, and their interaction for egg formation in the oviduct of laying hens.
Heat production and metabolism, hormonal balances of thyroid hormones and corticosterone, and gas exchange (O2, CO 2) are of fundamental importance for embryonic development and survival during incubation.
To assess the correlation between serum luteinizing hormone (LH) levels preceding luteal replacement initiation and outcomes of frozenthawed embryo transfer (FET) cycles during hormone replacement therapy (HRT) without co-administration of gonadotropin-releasing hormone (GnRH) analog.
This particular example perfectly highlights why Frozen-Thawed Egg Chick Hormone Regulation is so captivating.
Indeed, multiple hormones regulate fetal growth, brain development and organ maturation in preparation for extra-uterine life. Two types of these hormones, thyroid hormones (THs) and glucocorticoids (GCs) play prominent and widespread roles during this period.
The main endocrine factors that regulate egg-laying are gonadotropin-releasing hormone (GnRH), prolactin (PRL), follicle-stimulating hormone (FSH) and luteinising hormone (LH).
