VALORIZATION OF LIVESTOCK MANURE AS A MEANS OF ENVIRONMENTAL PROTECTION IN RURAL REGIONS - CIOBOTARU, Nicoleta (Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XIV, Inginerie mecanică = Annals of “Dunarea de Jos“ University of Galati. Fascicle XIV, Mechanical Engineering, 2026)