Soybean is one of the most important oilseed crops. Since 1970, soybean production has been at least double that of any of the other oilseed crops, such as peanut, sunflower, and rapeseed. The share of soybean in world oilseed production has increased from 32% in 1965 to over 50% in the 1980s. Soybean oil accounts for 20 to 25% of the total world fat and oil production, and 30 to 35% of the total edible vegetable oil production. Another important product of soybean is protein. Soybean meal plays a key role as a protein ingredient in feeds in the USA. Poultry feeds are the largest outlet for meal, followed by swine feeds; the two account for 78% of total usage. Soybean meal has been estimated to make up more than 90% of the oilseed meals consumed in poultry feeds. Smaller quantities of soybean meal are fed to beef and dairy cattle. Production of edible protein products is small as compared to soybean meal for seed uses. Soybean cultivars grown in the United States generally contain 20-30% oil and 39-45% protein.