BOLUS FOR SUPPLYING BIOLOGICALLY BENEFICIAL SUBSTANCES TO RUMINANT ANIMALS

摘要

A bolus for supplying a biologically beneficial substance to a ruminant animal, wherein the beneficial substance, in the form of a relatively high density particulate such as copper oxide, is incorporated in a bolus-shaped block of a solid, non-toxic binding substance such as salt or sugar which in use dissolves relatively rapidly in the ruminant stomach.