 Goat and sheep are ruminants with a four-compartment stomach that is made primarily to digest grasses and forages. A diet for ruminants should consist of at least 60% grasses and forages. They are forages high in protein that can be used to replace commercial grains. Some of the varieties commonly found and used in the tropics will be discussed. Mulberry is a shrub that is native to parts of Asia and is grown for its leaves and fruit. The leaves are highly palatable and digestible with a protein content between 20 to 21% of dry matter. It can be propagated by cuttings and grown in rows and harvested at six to eight-week intervals for the highest nutrient value. Trichontera gigantia is a tree of South American origin that has adapted to a wide range of tropical ecosystems. It is established by cuttings and grows vigorously. Trichontera can be used to feed sheep, goats and other livestock. The leaves are highly digestible and protein content ranges between 17 and 22%. Harvesting interval is six to eight weeks. Newsenia, commonly called wild tamarin, is a deep-rooted, perennial shrub native to Central and South America. The plant is suited to wild-drained soils and is drought-resistant. Ruminants may graze on wild tamarin or it may be harvested for feeding. It is propagated by seeds or cuttings. It has a high palatability and digestibility with a good nutrient value of 22 to 28% fruit protein. The stage of harvesting will affect the protein content and is ideal between six to eight weeks. Gliricidia, also called quick stick, is a fast-growing tree that reaches up to 20 meters in height, useful as a live fence post and shade for animals. Quick stick is a good source of protein and can be propagated by seeds or cuttings. The leaves are palatable and digestible with a protein content of 18 to 23%. The species is known to improve animal production in both meat and milk in large and small ruminants. Moringa has a high biomass and is useful as forage for ruminants in some areas prone to droughts. The leaves are highly palatable and digestible with a protein content of 24 to 28%. These plants can easily grow in forage banks on farms and harvested at appropriate intervals to maximize the nutrient content. Forage tree legumes provide a cheap and readily available source of high protein and can improve animal productivity.