Dec. 15, 1924 
Composition of Diet, Blood, and Milk 
613 
Table VI .—Experiment IV, cow 246. Quantity of protein in ration reduced. Na 
change in quality 
Pe¬ 
riod 
No. 
Date 
Yield 
1922 
Oct. 27-31. 
Nov. 1.. 
Nov. 2, 3_ 
Nov. 4, a. m__ 
Nov. 4, p. m. j 
Nov. 5. 
Nov. 6_ 
Nov. 7. 
Nov. 8_ 
Nov. 9_ 
Nov. 10_ 
Nov. 11_ 
Nov. 13_ 
Nov. 14_ 
Nov. 15-19_ 
Nov. 20. 
Nov. 23-26_ 
Nov. 27_ 
Nov. 30-Dec. 4 
Dec. 6.... 
Dec. 7-8_ 
Dec. 9_ 
Kg. 
10.16 
10.34 
10.10 
• 9.84 
9. 43 
8.98 
8. 57 
8.62 
8. 30 
8. 57 
8 . 21 
8. 48 
8. 62 
8.97 
8. 39 
7. 78 
7. 26 
7. 54 
7. 62 
7. 94 
7. 76 
Milk (daily) 
Amino N 0 
Tryptophane 
Fat 
Nitrogen 
Blood 
(mg. per 
100 c. c.) 
Plasma 
(mg. per 
100 c. c.) 
Blood 
Plasma 
Individual 
determina¬ 
tions (mg. 
per 100 c. c.) 
Aver¬ 
age 
(mg. 
per 
100 
c. c.) 
Indi¬ 
vidual 
deter¬ 
mina¬ 
tions 
(mg. per 
100 c.c.) 
Aver¬ 
age 
(mg. 
per 
100 
c. c.) 
P. ct. 
Gin. 
P.ct. 
Gin. 
1.03,1.04,1.00 
1.02 
4.31 
3. 88 
3. 87 
3. 86 
3.89 
3.92 
4. 04 
3. 86 
3. 62 
4. 02 
3.91 
355 
329 
334 
346 
326 
305 
293 
291 
276 
319 
303 
0.546 
.514 
.528 
.548 
.555 
.553 
.550 
.552 
.543 
.544 
.544 
44.9 
43.6 
45.5 
49.2 
46.6 
43.0 
39.9 
41.5 
41.3 
43.2 
42.2 
1.84 
1. 95 
1.00,1.08 
1.04 
4.58 
1. 456,1. 464 
1.46 
. 
2.20 
1.03, 1.05 
1.04 
4. 67 
2.31 
b 2. 67 
2. 89 
0.92, 0.73 
.82 
. 
3. 93 
2.28 
0.64, 0.62 
.63 
“Average difference in duplicate amino-N determinations in blood 7.9 per cent, and in plasma 6.1 per cent. 
b This unusual blood amino-N is substantiated by four determinations made by two different methods. 
It is difficult to see how it could be due to accident in analytical work. 
Table VII .—Experiment V, cow 54. Change in the quantity and quality of 
protein in ration 
Pe¬ 
riod 
No. 
Date 
Milk (daily) 
Yield 
Nitrogen 
1920 
! 
P. ct. 
Gm. 
P. ct. 
Gm. 
1 
Oct 22-25 
12.84 
1 
Oct. 26..... 
13. 25 
0.4965 
65. 76 
3.49 
462.3 
1 
Oct. 27_ 
13.06 
.4864 
63. 54 
3. 58 
467. 7 
1 
Oct 28_ 
12. 97 
.4988 
64. 72 
3. 48 
461.5 
2 
Oct 29_ 
12.47 
.4843 
60.42 
3. 46 
431.6 
2 
Oct. 30_ 
12.57 
.4659 
58.54 
3.46 
434.8 
2 
Oct. 31.. 
12.25 
.4499 
55.10 
3.34 
409.1 
2 
Nov. 1_ 
11. 79 
.4600 
54. 25 
3. 22 
379.8 
2 
Nov. 2... 
10.93 
.4545 
49.68 
3. 21 
350.9 
2 
Nov. 3_ 
12.07 
.4478 
54.04 
2.94 
354.7 
2 
Nov. 4- 
10. 52 
.4346 
45. 74 
3.12 
328. 4 
2 
Nov. 5.. __ 
10.80 
. 4059 
43. 82 
3.06 
330.4 
2 
Nov. 7_ .. 
10. 89 
.4699 
51.15 
3. 43 
373.9 
2 
Nov. 8_ 
11. 52 
2 
Nov. 9.. _ 
11. 78 
.4467 
52.63 
2.91 
342.9 
2 
Nov. 11.. 
12.11 
.4409 
53.40 
2 
Nov. 12_ 
11.20 
.4499 
50.40 
2.89 
323.8 
2 
Nov. 13_ 
11.30 
3 
Nov. 14_ 
11. 30 
3 
Nov. 16_ 
11. 34 
.4767 
54.06 
3.01 
341.3 
3 
Nov. 17_ 
12.16 
.4565 
: 55.49 
3. 08 
374.4 
3 
Nov. 18_ 
12. 25 
.4709 
57. 67 
3.06 
374.8 
3 
Nov. 19- 
12. 66 
.4748 
60.09 
3.11 
393.6 
3 
Nov. 21-22 
12. 45 
3 
Nov. 23_ 
12. 61 
.4672 
58. 92 
3.20 
403.5 
3 
Nov. 24_ 
12.02 
.4489 
53. 96 
3. 39 
407.5 
3 
Nov. 25_ 
11. 66 
3 
Nov. 26_ 
11.34 
.4837 
54.85 
3. 44 
390.1 
3 
Nov. 27_ 
11. 84 
.4946 
| 58.55 
3.64 
430.9 
Fat 
Amino N° 
Sugar 
Lactose 
Blood 
(mg. 
per 
100 
c. c.) 
Plasma 
(mg. 
per 
100 
c. c.) 
Blood 
(mg. 
per 
100 
c. c.) 
Plas- 
ma 
(mg. 
per 
100 
c. c> 
P. ct. 
Gm. 
4.01 
2.43 
4. 34 
2.55 
5. 28 
658.6 
5. 28 
646.6 
4.06 
2.47 
5.23 
631.1 
5. 36 
583.5 
5. 39 
603.9 
4. 42 
2. 53 
5. 39 
611.2 
5.23 
659.5 
3.63 
1. 81 
64.0 
75. 5 
5. 23 
5. 34 
593.1 
632.2 
4.05 
1.95 
64.1 
77.1 
“Average difference in duplicate amino N determinations in blood 3.4 per cent, and in plasma 9.3 per cent. 
