I think, don't know, that it is to keep the goats interested and just in case mineral mixture is a little different you may fill in the lacking mineral by changing.I have never heard of rotating minerals monthly. I use Pro Manna minerals for my goats. I cannot offer the minerals free choice because of the extremely high humidity here in south Texas.
WHEN USING ACV, I'VE HEARD YOU ARE SUPPOSE TO USE VINEGAR WITH THE MOTHER. Any thoughts on this?
I have hear that the ACV with the mother is best because nothing has been filtered out. Some swear by it, some don't.
Free choice minerals are best, just put out enough for one day at a time. Also get a good weathershed mineral. Low humidity here is 75% average is about 90%.