My kelp comes in a plain brown bag, so I have no "feed tag" to refer to. Does anyone know the analysis of kelp? Also, some supplements and minerals (and rations, for that matter) will say "so many ppm" (parts per million) while other stuff is listed as %. Percent of what? I'm confused by all this! Like copper for example; Vicki said she likes to have a minimum of 1000 ppm of Copper. I use Golden Blend goat minerals says Copper MIN .15%. :??? Can anybody "esplain" it to me?