Effectiveness of Betel Leaf Extract (Piper betle L.) as a Disinfectant on Embryo Mortality, Hatchability, and Hatching Weight of Kampong Chicken Eggs Nur Santy Asminaya, Astriana Napirah, Fuji Astuti Auza, Nurfianti Nurfianti Indonesian Journal Of Animal Agricultural Science (IJAAS) Vol. 5 No. 3 2023 DOI 10.33772/ijaas.v5i3.45268