EMBRYONIC DEATH INCIDENTS DUE TO HEAT STRESS AND EFFECT OF THERAPY WITH GONADOTHROPIN RELEASING HORMONE (GnRH) IN ACEH CATTLE. - Siregar, Tongku Nizwan; Wajdi, Farid; Akmal, Muslim; Fahrimal, Yudha; Adam, Mulyadi; Panjaitan, Budianto; Sutriana, Amalia; Daud, Razali; Armansyah, Teuku; Meutia, Nellita (Veterinarija ir Zootechnika, 2017)