像有机认证雷竞技电脑网页一样，Opt Grass-Fed需要反刍动物在整个放牧季节都要放牧。 However, the minimum length of the grazing season is increased to 150 days and the required dry matter intake from pasture is increased to 60% in the grass-fed program. 探索具有相关主题的其他表格和文档和常见问题 认证主题 家畜
