 Goat and sheep are ruminants with a four-compartment stomach that is made primarily to digest grasses and forages and convert them into energy products for ruminants. The diet should consist of at least 60% grass or forage. Some of the varieties commonly found and used in the tropics will be discussed. African star is native to East Africa and is found widespread throughout the tropics and subtropics. It is a robust perennial grass species that is palatable to all classes of livestock and it is cultivated as a forage, fodder and pasture grass and can be grazed or used for hay or silage. It can be established by seeds and vegetatively by stolons also called cuttings. This species is drought tolerant and can also withstand temporary flooding. It grows better in full sunlight areas and may survive some frost but low temperatures reduce its growth. Once established, it competes well with other grasses, native species and weeds due to its aggressive growth and rapid propagation. It is best harvested at four to five week intervals. Pangola grass is a tropical grass widespread in many humid tropical and subtropical regions used extensively for grazing, hay and silage. It is often considered to be one of the higher quality tropical grasses. It is tolerant of drought but low rainfall is the main limiting factor for good yields. The best yields have been produced in full sun or well-drained moist soils. The production of Pangola grass pasture is sensitive to photoperidism and the grass grows dormant during short to day length. During the growing season it can be harvested at three to four week intervals. Guinea grass is a major tropical grass used for pasture, cut and carry, silage and hay. Guinea grass is a perennial species and may form quite large clumps and is propagated by seeds. It is a fast growing and leafy grass which is palatable to livestock with good nutritional value. It is generally recommended to include sources of protein, for example, leucine or mulberry forages to meet the nutritional requirements or improve animal performance. King grass is a fast growing, high yielding hybrid grass that grows in a variety of soil conditions. King grass is a perennial and can be harvested several times per year at 40 to 60 day intervals and can be fed as freshly cut grass, green chop, silage or hay. It has fair protein and high palatability. In a mixed ration, giant king grass provides fiber, energy and protein and can reduce the amount of the high cost materials needed in the ration to provide optimal nutrition. Sorghum is used for both grain and forage. Some varieties are grown solely for grains, others have been developed for forage production and some varieties are dual purpose. The sorghum plant is a tall erect annual grass with broad smooth leaves. Sorghum has an adventitious root system making it tolerant to drought. It can be grazed, green chopped, ensiled and made into hay. Young sorghum can be toxic due to hydrogen cyanide and should not be used until it reaches at least a height of 45 centimeters. Farmers must consider conserving grasses and forages for long term storage.