Decent Mineral Mix 16/8 (2:1 ratio)

[IdahoNancy]

Purina make me nervous because of the nearly 1:1 calcium to phosphorus ratio, 9 -10.8% calcium to 8% phosphorus. Owing only wethers I really look for the ratio 2:1 or 3:1, which this MannaPro product has. Reading through Dave's other comments on this thread line he notes 2 different sources of a mineral is good this which this products also has. Purina has 2 x the selenium of MannaPro. Our hay is selenium deficient here in North Idaho but I won't won't risk the 1:1 ratio of calcium and phosphorus. Other things play into urinary calculi but I want to control the risk factors I can. The Purina web site does not seem to have a list of ingredients for the minerals. The Tractor Supply store says they will be carrying the Payback product line in the future.