Oky Setyo Widodo, DVM, M.Sc., Ph.D. Assistant Professor of Cattle Health and Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Indonesia. Ph.D. in the theriogenology laboratory at Yamaguchi University, Japan. Research focuses on examining the contamination of mycotoxins in dietary feed, which can disrupt the reproductive physiology of cattle and impact the health and fertility of breeding cows. We looked at certain indicators, such as anti-Müllerian hormone (AMH), serum amyloid A (SAA), and urinary 8-hydroxyguanosine (8-OHdG).