So are your goats looking good on once a month bolusing? It is possible to overdose so I would be careful. The signs of toxicity are the same as deficiency which makes it all harder.
It is possible that you have a lot of antagonist in their diet that could be causing them to need copper that frequently because there is something that is causing them to be unable to absorb it properly. Do you have sulfur in your water?
It is possible that you have a lot of antagonist in their diet that could be causing them to need copper that frequently because there is something that is causing them to be unable to absorb it properly. Do you have sulfur in your water?