This study was to determine the effect of the hormone progesterone in Bali Steer on body weight, gumba height, body length, chest circumference and scrotal circumference, as well as to determine the side effects of the use of the hormone progesterone. This research was conducted at Sekolah Peternak Rakyat 1111 Kecamatan Sungai Lilin, Kabupaten Musi Banyuasin from August 2020 to October 2020. Th…