The use of transrectal massage combined with artificial vagina as semen collection in javan banteng (Bos javanicus) bullVincentia T. Yoelinda, Raden I. Arifiantini, Muhammad Agil, Dedi R. Setiadi, Yohana T. Hastuti, Jansen Manansang and Dondin SajuthiE3S Web Conf., 151 (2020) 01005DOI: https://doi.org/10.1051/e3sconf/202015101005