CALCIUM AND PHOSPHORUS IX THE PEED OF DAIRY COWS. 25 
phosphate " gives the milk yields to be expected after the experi- 
mental feeding, using the yields after the control feeding as a basis 
and taking into account the facts that some of the animals aborted, 
and that the last four were heifers with their first calves in the con- 
trol period and with their second or later calves in the experimental 
period. The figures represent the milk yield in 30 days beginning 
soon after calving. 
Table 8. — Expected and actual 30-day milk yields of cows from the general herd 
after alternated phosphate feeding: actual yields after control feeding. 
No. of animal. 
Actual 
milk yield 
after 
control 
rations. 
Expected 
milk yield 
after al- 
ternated 
rations with 
phosphate. 
Actual 
milk yield 
after al- 
ternated 
rations with 
phosphate. 
17 
Pounds. 
S47 
831 
995 
669 
422 
632 
685 
Pounds. 
847 
565 
995 
599 
495 
739 
753 
Pounds. 
85S 
49 
953 
50 
972 
54 
1,027 
63 
1.01S 
71 
1,121 
81 1 
936 
Total. 
5,081 
4 ; 993 
6,8S5 
The actual yields after the alternated feeding with phosphate aver- 
ige 37.9 per cent more than the expected. 
GRAIN MIXTURES USED IN EXPERIMENTS. 9 
GRAIN MIXTURE A. 
Corn meal 45 pounds. 
i Wheat bran 36 pounds. 
Cottonseed meal 18 pounds. 
NaCl 1 pound. 
GRAIN MIXTURE C. 
Corn-and-cob meal 45 pounds. 
Wheat bran 36 pounds. 
Cottonseed meal 18 pounds. 
NaCl 1 pound. 
GRAIN MIXTURE CPi. 
Grain C 100 pounds. 
NsuHPQ*. 12H 2 10 pounds. 
GBAIN MIXTURE D. 
Hominy grits 45 pounds. 
Ground oats 36 pounds. 
Cottonseed meal 18 pounds. 
NaCl 1 pound. 
9 The cottonseed and linseed meal used in 
fat had been extracted by the old process — ' 
GRAIN MIXTURE B. 
Corn meal 40 pounds. 
Wheat bran 40 pounds. 
Cottonseed meal 20 pounds. 
NaCl 1 pound. 
GRAIN MIXTURE CP. 
Grain C 100 pounds. 
NaJBPO,. 12H 2 11 pounds. 
GRAIN MIXTURE CP* 
Grain C 100 pounds. 
Na 2 HP0 4 . 12H 2 6 pounds. 
GRAIN MIXTURE DP. 
Grain D 100 pounds. 
Na 2 HP04. 12H 2 19 pounds. 
these mixtures were meals from which the 
heat and pressure without solvents. 
