12 BULLETIN 413, U. S. DEPARTMENT OF AGRICULTURE. 
_ Tf still in health his value at 16 years is 40 per cent of his maximum | 
value. At birth he is worth 16 per cent of his maximum value, and 
there is little change in value between the ages of 5 and 9. 
Figure 5 presents in graphic form the data given in Table VI. 
This curve differs in some respects from the curves for purebred 
i 2 3 4 Ss 6 71 
YEARS 
Fic. 5.—Curve showing the influence of age on the values of farm workhorses. (Averages of 147 estimates 
by owners.) 
dairy cows and is altogether different from the curves for grade dairy 
cows. As compared with the values given for pure-bred dairy cows 
of about the same maximum value, the birth value of horses is con- 
siderably less, the age of maturity a little later, and the old-age value 
somewhat higher.» 
WASHINGTON : GOVERNMENT PRINTING OFFICE: 1916 
