in 1,000_in 1,000_
|Cows on winter feed: | | | | |
| Trefoil or lucern, 12-13| | | | |
| pounds; oat straw, 9-10 | | | | |
| pounds; beets, 7 pounds;| | | | |
| water, 2 buckets | 871.26 | 47.81 | 33.47 | 42.07 | 5.34
|Cows on summer feed: | | | | |
| Green trefoil, lucern, | | | | |
| maize, barley, grass, | | | | |
| 2 buckets water | 859.56 | 54.70 | 36.38 | 42.76 | 6.80
|Goat's milk on different | | | | |
| feed: | | | | |
| On straw and trefoil | 858.68 | 47.38 | 35.47 | 52.54 | 5.93
| On beets | 888.77 | 33.81 | 38.02 | 33.68 | 5.72
|Normal mean | 844.90 | 35.14 | 36.90 | 56.87 | 6.18
| | | | | |
+--------------------------+--------+----------+--------+--------+--------+

In these examples the deterioration of the milk in casein on the less
nutritious winter feeding is very marked, although the relative quantity of
butter remains almost unchanged. In the case of the goat the result is even
more striking, the beet diet giving a very large decrease of both casein
and butter and an increase of milk sugar.

The second table following, condensed from the Iowa Agricultural Experiment
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) 12-1/4 pounds corn-and-cob meal, and (2) 10 pounds sugar
meal--a product of the glucose manufacture. This special feed was given
seven days before the commencement of each test period to obviate the
effects of transition. The analyses of the special rations are given below:

_Analyses of special rations._

------------------------------+--------------+-----------+
Constituents. | Corn-and-cob | Sugar |
| meal. | meal. |
------------------------------+--------------+-----------+
| _Per cent._ |_Per cent._|
Moisture