The Southern region of Brazil is characterized by milk-producing properties that need to efficiently use the area available. Integrated agricultural production systems, including integrated crop-livestock systems (ICLS), integrate activities aimed at optimizing land use, infrastructure, and labor, minimizing costs and diluting risks. Producing wet grain silage from winter cereals after grazing in autumn and winter and followed by deferral for grain harvesting is a strategy to generate more income in the winter. The ensiling aims to conserve the nutrients of the ensiled material through anaerobic fermentation, with minimum losses of dry matter and energy. Grain silage can be a supplementary option concentrated in the food management of farm animals, leading to a significant reduction in feed costs. We are talking here about several species, forage grasses and winter cereals that can be used for forage conservation in anaerobic conditions, silage and pre-dried fodder. The species include barley, white oats, triticale, wheat , rye, black oats, and annual ryegrass.