A vernier adjustor for a feed dispenser is provided. The vernier adjustor includes first and second slotted members moveable in slidable relation and a pin, the first and second slotted members each including a plurality of slots separated by respective first and second spacings. The pin is adapted for placement within an aligned slot pairing to fix movement of the first slotted member relative to the second slotted member. The first and second slotted members are positionable in increments less than the first and second spacings. In particular, the first and second slotted members are positionable in increments substantially equal to the difference between the first spacing and the second spacing. Movement of the first slotted member relative to the second slotted member provides an incremental raising or lowering of a feed gate.
