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A magnesium block with molasses for the grass tetany window. The molasses is there to solve the real problem with magnesium supplementation - stock will not eat it willingly on its own.
Supplied as a single 20kg block.
Put blocks out before the tetany risk period starts, and put out enough for the mob so timid cattle get access. Intake from any block is uneven, so a block is risk reduction rather than a guarantee.
This is a solid 20kg block. Freight on that weight is unavoidable, so pickup or combining it with the rest of a paddock order is the sensible way to buy it.
See the full Farm Balance range - Australian mineral lick blocks, loose licks and stockfeed premixes for cattle and sheep.