PERAN INSEMINASI BUATAN ( IB ) TERHADAP SISTEM PERKAWINAN DIKELOMPOK TANI TERNAK LEMBU KAROMAH KECAMATAN TALUDITI KABUPATEN POHUWATO Journal title: Jambura Journal of Animal Science Authors: Moh Nur Amin Umbang A. Rokhayati Nibras K. Laya Subject(s): Animal Behavior, Animal Physiology, Zoology and Animal Science, Fisheries , Agriculture, Dairy & Animal Science, Agricultural sciences - Animal husbandry