So, I've searched "cobalt" on this site and reach every post pertaining. But I still have questions... So far, and consider I have had goats a whopping 2 months, I have come up with a suitable schedule. I'll feed a 2/3 grass 1/3 alfalfa hay, minerals, baking soda, and grain in moderate amounts only to goats why need it. I'll also copper bolus twice a year, more often if needed. I'll give selenium/E twice a year plus one month prior to kidding and at birth. I have chosen to vaccinate each year. I'll worm only as needed, though I wormed everyone when they got here - just in case. I'll worm against cocci using a cattle/chicken grade wormer suitable for animals used in food production. I'll also provide a calcium supplement, most likely in the form of CMPK or MFO. I have not yet decided on a schedule for this. I am certain I will provide it shortly before kidding to prevent milk fever. I am still learning about propylene glycol and ketosis prevention. So, now I am pecking out my vitamin B/cobalt supplementing. The best recommendation I have been given is to add brewer's yeast to my goats grain or minerals. Brewer's yeast is very high in B vitamins esp B12 and has a minimal amount of cobalt. However, since a goat synthesizes B12 using cobalt a cobalt deficiency is actually a B12 deficiency. Taking that into consideration a low dose of cobalt to keep levels in the liver ideal with a supplemented B12 dose sounds like a good idea for goats. Does anyone else use brewer's yeast? How much? How did you learn about it? Downfalls? Benefits? If you don't use brewer's yeast, what do you use and why? BoSe? How often?