Ruminant Reproduction: Hormone Regulation and Mechanism

Sustainable ruminant products (e.g., meat and milk) are crucial for food security, as the worlds population grows exponentially. Ruminant reproduction is closely related with the production of ruminant meat and milk, while fully understanding hormone regulation and mechanism is essential for ruminant reproduction. The scope of this Research Topic covers the latest findings regarding ruminant reproduction, particularly hormone regulation and mechanism in bovines and ovines.Proper functions of the reproductive organs are crucial for reproductive efficiency in the bovine and ovine, which are under the control of steroid hormones, gonadotropins, and locally produced factors/molecules. However, hormone regulation and mechanism in the bovine and ovine is complex and still not fully understood. Thus, the extensive research in the field of gene expression regulatory mechanisms, intracellular signaling, and nuclear and membrane hormone receptor action or epigenetic regulations is required. Cattle and sheep reproduction related to hormone regulation includes many topics. First, fundamentals of reproductive physiology and regulation are involved in the estrus patterns of cattle and sheep in different seasons (mostly seasonal or perennial estrus) and physiological stages (such as postpartum). Second is the hormone regulatory network that could focus on how the hypothalamic pituitary gonadal axis precisely regulates estrus, ovulation, fertilization, and pregnancy through the synergistic and antagonistic effects of hormones such as GnRH, FSH, LH, P4, E2, and PGF2 alpha, as well as others. Finally, the core reproductive technology and management may include estrus regulation and pregnancy diagnosis. In addition, studies focusing on hormone regulation related to reproductive disorders and health management are also welcomed.Novel insights into the hormone regulation and mechanism of the testis, conceptus, ovary, uterus, oviduct, and other organs in the bovine and ovine are welcome. We invite researchers to submit original papers, reviews, and short communications that provide novel insights into bovine and ovine reproduction. Topic editors: Ling Yang, Pengcheng Wan Source: https://www.frontiersin.org/research-topics/78628/ruminant-reproduction-hormone-regulation-and-mechanism