New York AGRICULTURAL EXPERIMENT STATION, QI 
TABLE XXXV.—EFFECTS OF THE INGESTION OF PHOSPHORUS COMPOUNDS 
UPON THE COMPOSITION OF THE MILK. 


eee IN THE MILK... 
phos- ee Aver a Se ec a ee 
DATE. phorus 
fed daily. |Proteids.| Casein. Fat. Sugar. Solids. 
Grms. at Per ct. Per ct. Per ct. Per ct. Per ct. 
Mare elo Ses. 4 oss dcisle ot Ti Bil O iy DOS 3.28 5.56 11.91 
MarchssO—A priledo. aos hice s ne 16 3 (055 2.45 3.09 5.46 11.59 
Apiileza—May ls ook css 77 Sees 2.66 Sato 5.47 12.41 
Marya29—Iune 4 kc ice ed bce ass 16 Snot 2.75 3.29 5.50 12,07 





TABLE XXX VI.—EFFECTS OF THE INGESTION OF PHOSPHORUS COMPOUNDS 
UPON THE YIELD OF MILK AND MILK SOLIDS AND UPON 
THE EXCRETION OF URINE. 






hres Yield DAILY YIELD MILK SOLIDS. Weight 
DATE. phorus milk | urine 
fed daily. daily. Casein Fat Total daily. 
nitrogen. as solids. 
Grms. Grms. Grms., Grms. Grms. Grms. 
MarCH@ z= Scien ota wrala octets 77 14606 58 478 1739 9433 
March 30-April 5....... : 16 14899 5726) 459 1726 5482 
Aprile2a—M ave ls cer. HVE 12686 53 473 1575 
May 29-June 4.......... 16 11917 Wl a 392 1438 





DISCUSSION OF RESULTS. 
The results secured in this experiment are in the main con- 
firmatory of those obtained in Experiment 1. 
1. The comparative nutritive value of the rations.—Both rations 
supplied an abundance of digestible nutrients. The dry matter 
digested daily from ration 1 was 17.5 pounds and from ration 2, 
16.5 pounds, the amounts of digestible protein being 2.8 pounds 
and 2.6 pounds respectivelv. The difference between these two 
rations is not sufficient to account in any way for the physiological 
and other effects observed. (See Table 27.) 
2. The amounts and forms of ingested phosphorus in the two 
rations.—Ration I carrie? -~7 grams of phosphorus and ration 2, 
16 grams. Of the phosphorus in ration I, 65 per ct., or 50.2 
grams, consisted of soluble organic phosphorus compounds, which 
was practically all phytin. In ration 2 only 2.6 grams of phosphorus 
was found in soluble organic combinations. The nucleo-proteid 
phosphorus in ration 1 amounted to 23.2 grams or 30 per ct. of 
the whole, and in ration 2 9.6 grams or 60 per ct. of the 
whole, the larger amount of this form of phosphorus in ration I 
being due to the difference in the composition of the unwashed 
and washed bran. As in the former experiments, the food supply 
