Progress 10/01/00 to 09/30/05
Outputs
4d Progress report. This report serves to document research conducted under a specific cooperative agreement between ARS and North Carolina State Agricultural Research Service. Additional details of research can be found in the report for the parent project, 6645-21000-025-00D, Fundamental mechanisms for genetic alteration of soybean quality and productivity. The objective of this research was to determine what economic advantage might be associated with feeding higher protein soybeans to chickens. We have concluded that the high protein meal produced from the soybean variety, Prolina, appears to possess higher metabolizable energy (ME) than conventional soybean meal apparently due to the additional non-essential amino acids that Prolina possesses. This was determined through feeding trials and was in opposition to the results of the standard bioassay used to determine ME of feedstuffs. Prolina soybean meal does possess a good balance of essential amino acids as
well as the extra non-essential amino acids. Gven the obvious cost-competiveness of the Brazilian soybean industry a higher quality soybean with more ME could create some competitive advantage for US farmers.
Impacts
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Progress 10/01/03 to 09/30/04
Outputs
4. What were the most significant accomplishments this past year? This report serves to document research conducted under a specific cooperative agreement between ARS and North Carolina State Agricultural Research Service. Additional details of research can be found in the report for the parent project, 6645-21000-025-00D, Fundamental mechanisms for genetic alteration of soybean quality and productivity. A detailed economic analyses was conducted which showed that the lowest cost broiler (poultry) diet would be achieved when soybean meal blends with corn in a manner that will exclude the need for synthetic amino acid supplementation (arginine, lysine, methionine, threonine, and tryptophan). Soybean meal which is one of the main ingredients in poultry feed is generally purchased on a unit protein basis, but more efficient use of the meal could be made with more attention to amino acid composition. Compound diets are made with additional ingredients as well and all of
these ingredients must blend together to provide an approximation of an 'ideal' amino acid balance. In the USA and to a large extent globally, the other main ingredient is corn. There will be added value if this corn-soybean combination reduces the amount of excreted nitrogen and phosphorus in such a manner as to improve the sustainability of USA animal agriculture. As a basic comparison, formulation of broiler grower diets with an 'ideal' SBM would reduce the price of the diet by about $9 per ton when compared to a standard USA SBM. This would raise the value of SBM by about $30 per ton while reducing usage by less than 4%.
Impacts
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