Limiting Amino Acids in Sunflower Meal for Growing Swine

Increased production of sunflower seeds, particularly in South Dakota, North Dakota and Minnesota, has increased the availability of sunflower meal as a protein supplement source for livestock diets. Previous research has shown that sunflower meal is not a good source of the amino acid lysine, the first limiting amino acid in sunflower meal. If lysine is available at a competitive cost, economical diets can be. formulated using synthetic lysine and sunflower meal that are equal in lysine content to diets using soybean meal as the protein source. This study was conducted to identify other limiting amino acids in a lysine fortified low protein, corn-sunflower meal diet for the growing pig