Regular Price $23.36 less 5% disc $22.19 In their natural state, wild animals instinctively seek the food nutrients they need from a wide variety of natural sources. Domesticated animals today are restricted to small pastures, lots, stalls and buildings. The availability of natural sources for minerals and vitamins dwindles in relation to the degree of confinement. Advanced Biological Concepts provides many nutritional solutions for confined and semi-confined horses by offering the Free Choice Stress System, A.B.C.'s Complete Diagnostic Free Choice System and the Free Choice Box Stall Kit (described on the following pages). Natural minerals are provided in separate compartments. They are natural in composition and in taste, with no additives. Horses can choose their minerals and vitamins by instinct and taste alone, as they always have.