Editorial: Recent scientific advances in reproduction and fertility in ruminants: an overview of the 11th International Ruminant Reproduction Symposium, Galway, Ireland, 2023

This supplement to Animal contains the papers associated with the keynote lectures delivered at the 11th International Ruminant Reproduction Symposium (IRRS) held in Galway, Ireland, from May 28th to June 1st 2023. The IRRS is recognised as one of the most prestigious global conferences on reproduction in ruminant animals. Held every four years, leading scientists from around the world present cutting-edge talks on reproductive biology and technology in a variety of ruminant (and pseudo-ruminant) species, including cattle, sheep, goats, buffaloes, and camelids. Sessions are designed to bridge the gap between basic and applied science and to cover the entire reproductive axis from testicular and sperm function to follicle development and ovulation, oocyte maturation and fertilisation, corpus luteum development and maternal recognition of pregnancy, early embryo development, implantation, placentation and gestation, foetal development, puberty and life-course development, as well as state-of-the-art assisted reproductive technologies applied to reproduction in ruminants.