A sustained release bolus containing six trace elements. -® ORGANIC is approved by the Organic Farmers and Growers Association and is compliant with current standards. Designed for organically reared, grazing or forage fed livestock with a liveweight over 150 kg. -® ORGANIC helps farmers manage the trace element status of their herd over critical periods of the production cycle. Technology -® ORGANIC boluses are designed to lie in the reticulum and dissolve from a constant surface area thus providing a continuous and regular supply of nutrients to the animal. They dissolve completely, leaving the reticulum free of any bolus residue.