Performance and hematological profile of broiler chickens administered by ethanol extract of African leaves (Vernonia amygdalina)Ilham Ilham, I Wahyudi, S. Wajizah, T. Hidayat, Sugito Sugito and Samadi SamadiBIO Web Conf., 207 (2025) 01011DOI: https://doi.org/10.1051/bioconf/202520701011