INFLUElSrCE OP AGE ON" VlLtr^ OP 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 



*350 



300 

 25Q 

 200 



UJ 



< 150 



100 



SO 



















JHOLSTEIN !• 













y 



/ 



/ 





\ 

 \ 

 \ 











i 

 1 





''^*V 



\ 

 \ 











si 



y 



/ 





\ 



\ 



\ 

 \ 







i 



1 



/ f 



V 











\ 

 \ 





1 

 1 

 1 

 1 f 



/ 



^*^ 





***** 







\ 



1 / 

 1 



/ 





.^ 





"^ 



^ 



<^ 





/ 



■y 













1 



J 1 1 2 3 4 5 6 7 8 9 10 II 12 13 14 

 £ i YEARS 



«0 



Fig. 1. — Curv'es 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 a23- 

 pears to average a Uttle higher in the Eastern States. This differ- 

 ence, however, is not marked, and in the case of the $100 grade cow 

 it is reversed. 



