
II4 STORRS AGRICULTURAL EXPERIMENT STATION. 
- individual animal and fitting the food to its needs, rather than 
the adoption of any arbitrary standard. He calls attention to 
the fact that different breeds of milch cows and different cows 
of the same breed may vary widely with respect to the amounts 
of food which they can most advantageously utilize. The con- 
dition of the animal as to leanness or fatness may vary the 
amount and proportion of the different nutrients, and espe- 
cially the amount of milk given at different times during the 
period of lactation will vary greatly the demands for food. 
Prof. Kuhn also calls attention to the fact that, in the 
feeding of milch cows, toward the end of the period of lactation 
it is important to consider “whether they are to be fattened for 
the butcher or to calve and be milked again. If they are to be 
sold for beef when the milking stops they should have abun- 
dant food for fattening, but if they are to be kept for milk pro- 
duction they need not be as fat when they are dried before 
calving. 
Prot: Masreker also a well-known German authority, who 
has conducted numerous experiments on the feeding of cows 
for milk, insists very wisely that the modern high-bred cows 
with a very large capacity for milk production in proportion to 
their body weight, need much richer food than the ordinary — 
cows of the present or the best cows of comparatively few years 
ago from which such production would be impossible. 
The teachings of such men as these, which is based upon 
the latest and best experimenting and experience in Europe, 
where much more careful attention is given to such subjects 
than has been given until very lately in the United States, thus 
take into account very fully the needs of the animal for the 
special production demanded. | 
The feeding standards of Wolff have been published for 
many years, with his tables of composition of feeding stuffs 
and other most useful information, in a German Farmers’ 
Calendar which has wide circulation among farmers and dairy- 
men in that country. Since the death of Prof. Wolff the stand- 
ards have been edited by Dr. Lehmann, who has made an attempt 
to fit them to the results of later experiments and experience.* 
In standards for milch cows Lehmann has given expression 

*In the later volumes of Mentzel und von Lengerke’s Landwirthschaftlicher 
Kalender. 

