Forage harvesting and conservation must be properly managed in order to guarantee the quality of feed fed to the herd, keeping harvesting costs under control and ensuring the safety of the livestock farming system. In France, forage stores range between 1.2 and 3.5 kg DM/LU and vary according to the length of the growing season, herd size, and animal requirements. Optimizing forage stores implies managing grazing land and meadow land, matching herd requirements and available grazing land (including Winter grazing), making the most of the physiological adaptability of animal groups and growing forage crops (maize, kale, beet...). Whether providing for bovine or ovine livestock (milk herds and meat herds), a number of options are available, but these must be planned on a farm scale.