ksalvagno
Alpaca Master
There are more factors other than how deficient your area for copper is. There are also things that binds the copper and it all doesn't get absorbed. If you really want to do things right, you would test your soil, your hay, your feed and your water. Then adjust your feeding/supplementing plan accordingly. I just don't have the time and resources to do that and have my work around of copper bolusing a little more often.