Maintaining Sheep During Drought with Computer Formulated Rations

The use of a linear programming model for the determination of least-cost feed mixes for the drought maintenance of dry adult sheep is reported in this paper. A ration is suggested whereby sheep can be fully maintained at an approximate cost of one cent per head per day, representing a considerable reduction in the cost of feeding by the currently recommended standards. The importance of including the mineral additives, salt, sulphur and calcium is stressed throughout.