Date of this Version
Ackerson, C.W., Blish, M.J. and Mussehl, F.E. (1937). The utilization of food elements by growing chicks. III. A comparison of calcium carbonate and calcium sulfate as sources of calcium (Research Bulletin: Bulletin of the Agricultural Experiment Station of Nebraska No. 96)
I. The utilization of nitrogen, calcium, and phosphorus was studied with two lots of growing chicks by means of growth and body-analysis experiments. One lot had calcium added to the ration in the form of sulfate and the second received calcium carbonate, the additions being made on an equivalent calcium basis so that the experimental variable was the source of the calcium. 2. The percentage rate of gain and the gain per gram of nitrogen fed were identical in the two lots. 3. No significant differences were found in the utilization of nitrogen, calcium, or phosphorus by the birds of the two lots.