Availability to White Rats of Phosphorus in Soybean and Red Clover Hays
Dorothy E. Williams,
Florence L. MacLeod and
Elise Morrell
Department of Home Economics, Agricultural Experiment Station, University of Tennessee, Knoxville, in cooperation with The Tennessee Valley Authority
1. When the experimental diets contain phosphorus at a minimallevel of adequacy and all other nutrients at optimal levelsand essentially the same for all diets, the phosphorus of alow phosphorus soybean or red clover hay is less available tothe rat for growth and bone development than the phosphorusof a high phosphorus hay of the same type.
2. Evidence hasbeen presented indicating that for the rat,with the total phosphorusof the diet at a minimal level, anincrease in Ca/P ratio isaccompanied by a decrease in foodconsumption and in the amountof phosphorus stored in the animal'sbody.