NINTH ANNUAL YEAR BOOK— PART X 
495 
In these examples the deterioration of the milk in casein on the 
less nutritious winter feeding is very marked, although the relative 
amount of butter remains almost unchanged. In the case of the goat 
the result is even more striking, the beet diet giving a very large de- 
crease of both casein and butter and an increase of milk sugar. 
The following table, condensed from the Iowa Agricultural Experi- 
ment Station Bulletin, gives the results in butter and total solids when 
the same cows were fed on different rations in succession. Each cow 
was fed a daily ration of 12 pounds corn fodder and 4 pounds clover 
hay, besides the test diet of (1) 12 1^ pounds corn and cob meal, and 
(2) 10 pounds sugar meal — a product of the gluco&e manufacture. This 
special feed was given seven days before the commencement of each 
test peirod to obviate the effects of transition. The analyses of the 
special rations are given below: 
"3 
? 
5^ 
S 
Constituents 
fl-S 
^R 
60 
o^ 
3 
o 
CO 
Moisture ; 
Salts _ _ 
13.37 
1.43 
2.81 
65.99 
8.03 
8.37 
6.10 
1.17 
Fat , 
11.16 
Carbohyclrates (heat formers) 
52.66 
Woodj^ fiber i 
Proteids (flesli formers) 
8.64 
20.27 
The great excess of fat and nitrogenous or flesh-forming principles 
in the sugar meal is very evident. 
Animal 
m 
O 
CO 
OS 
m 
"o 
Ratio of 
Fat to 
Solids 
Not Fat 
Grade Slior thorn cow- 
First period, 21 daj^s, corn and cob 
meal _ __ 
Lbs. 
631.25 
641.50 
559.00 
604.75 
582.00 
527.00 
753.50 
601.50 
560.50 
487.50 
379.00 
374.50 
Perct. 
3.43 
4.04 
3.22 
3.57 
3.91 
3.37 
3.97 
3.15 
3.85 
4.15 
3.51 
3.72 
Perct. 
11.57 
12.53 
11.86 
11.95 
12.37 
12.05 
12.43 
11.45 
12.16 
13.27 
12.69 
13.01 
Lbs. 
21.67 
25.93 
17.97 
21.56 
22.74 
17.78 
29.94 
18.97 
21.58 
20.25 
13.30 
13.95 
Lbs. 
73.02 
83.38 
66.32 
72.28 
72.57 
63.48 
93.67 
68.89 
68.16 
64.69 
48.09 
48.74 
422.0: 1,000 
Second period, 21 days, sugar meaL. 
Third period, 21 days, corn and cob 
476.2: 1,000 
371.7: l.OOO 
Grade Shorthorn cow- 
First period, 21 days, corn and cob 
meal 
425.1: 1,000 
Second period, 21 days, sugar meal- 
Third period, 21 days, corn and cob 
meal ' 
456.3: 1,000 
389.1: 1,000 
Grade Shorthorn cow- 
First period, 21 days, sugar meal- 
Second period, 21 days, corn and cob 
469.8: 1,000 
380.0: 1,000 
Third period, 21 days, sugar meal- 
Grade Holstein cow- 
First period, 21 days, sugar meal- 
Second period, 21 days, corn and cob 
meal ^ 
Third period, 21 days, sugar meaL- 
463.3: 1,000 
455.6: 1,000 
382.3: 1,000 
401.0: 1,000 
