Aug. i6, 1915 



Phosphorus Metabolism of Lambs 



471 



Table XV. — Distribution of the forms of phosphorus in the feces of lambs 

 [Results expressed in percentage of the total phosphorus] 



It is apparent that there are no significant group differences in the 

 distribution of the different fomis of phosphorus in the feces. The 

 variations within the lots are as great as between lots. The significant 

 facts shown by these results are the relatively small percentage of acid- 

 insoluble phosphorus and the relatively large percentage of acid-soluble 

 inorganic phosphorus in the feces. 



The results for the forms of phosphorus in the feces in percentage of 

 the amounts of the same forms ingested are given in Table XVI. 



Table XVI. — The forms of phosphorus in ike feces of lambs'^ 

 [Results expressed in percentage of the amounts of the same forms ingested] 



Low-protein 



Average . . 

 Medium-protein . 



Average. . 

 High-protein. .. . 



Average . . 



Lamb 

 No. 



468 

 463 



Total 

 phos- 

 phorus. 



Acid- 

 insoluble 



phos- 

 phorus. 



87.1 

 97.0 



33-9 

 36.6 



92. I 



35-3 



Acid-soluble phosphorus. 



Total. Inorganic. Organic. 



125-9 

 136.0 



131. O 



462 

 458 



81.7 

 88.5 



85.1 



16. 2 

 33-3 



24. 8 



149-3 

 144. 7 



147.0 



207. I 

 191. o 



12.7 

 29.0 



199. I 



20.9 



221. 5 

 208. 7 



215. I 



37-7 

 32.6 



35-2 



453 



451 



25.6 



!;o. o 



37- 8 



a Values above 100 indicate larger amounts e.xcreted in the given form than were ingested in that form. 



