Pretreatments of animal feed for improved digestibility and its influence on biogas production - Dabul, Andrei Nicoli Gebieluca; Pellegrini, Vanessa de Oliveira Arnoldi; Mosepele, Belda Quetina; Madibela, Othusitse Ricky; Thema, Force Tefo; Polikarpov, Igor (Innovations in the global biogas industry: applications of green principles, 2025)