Development of the Biogas-Energized Livestock Feed Making Machine for Breeders Herry Susanto, Roy Hendroko Setyobudi, Didik Sugiyanto, Syukri Muhammad Nur, Erkata Yandri, Herianto Herianto, Yahya Jani, Satriyo Krido Wahono, Praptiningsih Gamawati Adinurani, Yanuar Nurdiansyah and Abubakar Yaro E3S Web Conf., 188 (2020) 00010 Published online: 08 September 2020 DOI: 10.1051/e3sconf/202018800010