In reply to Jones Beene's message of Mon, 26 Nov 2007 16:21:25 -0800: Hi, [snip] > If these Hens are allowed to peck mica >(contains K) - which they will frantically do - everything returns to >normal again. There is an insoluble Potassium, ammonium magnesium salt I think, with which they may replace the Calcium Phosphate in their bones, freeing Ca for egg shells.
There is also the possibility that Mg is replacing Ca in the shells. Regards, Robin van Spaandonk The shrub is a plant.
