Show best calcium calciu m sources for the poultry flock in a recent test condap teI hy the th poultry P alty husbandry husbandly dep department artmont of iowa state college antes it was ivits found best results were ft ere secured when tit the used us ed ns as a grit for tile poultry lock flock was very ery hard pure calcium carbonate and low tit in magnesium softer limestone did n not 0 t give such results as did the hard lime stone oyier shell clam shell and elmp stone were fed in ili the a and n d it t wils found that the amount of tile the kilt grit material materon consumed coastline was directly y prop propof atlo ani to the number of if e agns ggs bald by ti alie ali 1 e hens hells on oil test the esi experiment erl billat illat tile the re rc of the lie liens hen wore eit fully met hy by limestone ns as viel well ns as by tile other ina tennis |