NUTRIENTS AVAILABLE IN LIVESTOCK AND POULTRY MANURE RESIDUE AS REFLECTED BY MANAGEMENT SYSTEMS.

The paper summarizes calculated ″best usable values″ for quantity and constituents in livestock and poultry manure residues. The values were calculated with a computer model developed to allow for losses, gains, and transfers that occur to voided manure from beef cattle feeders, beef and dairy cows, swine, sheep, layer hens, broilers, and turkeys. Calculated constituents in manure residue included total solids, volatile solids, N, P, K, Na, Ca, Mg, Fe, Zn, Mn, Cu, As, and COD from dairy beef, swine, sheep, layers, broilers, and turkeys.