Troubleshooting the broiler optimiser

In both the NDO and AAO, when adjustments are made to the lower bounds of the amino acids, the upper bounds are set to 100% (i.e. unrestricted). The base results shown use the feeds exactly as they were specified in WinFeed 3, but the optimum results include these adjustments to the upper bounds of the amino acids. This means that if a feed had been defined in such a way that the formulated values of any of the amino acids lay on an upper bound, then after the optimiser has adjusted the upper bounds and re-formulated, the least-cost formulation under these new conditions can differ from the original feeds, in spite of the fact that their lysine and AMEn values are the same.