INFLUENCE OF AGE ON VALUE OF COWS AND HORSES. 3 
greatly between the ages of 4 and 8 years. After that age depre- 
ciation is rapid. The estimated values given old cows may seem 
a little high, but it must be remembered that only animals in 
health were considered. Calves and old cows are valued relatively 
higher in the Central States than in the East. This is doubtless due 
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2 
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Fig. 1.—Curves showing influence of age on values of Holstein cows. (Averages of 528 estimates by own- 
ers, based on arbitrary values assumed for a certain fixed age.) 
largely to the lower price of feed in the North Central States. Dur- 
ing their years of highest production, the price of Holstein cows ap- 
pears to average a little higher in the Eastern States. This differ- 
ence, however, is not marked, and in the case of the $100 grade cow 
it is reversed. 
