Live Stock Breeders' Associatmi. 



149 



necessary for the three-year-olds to bring $5,341/2 to fully offset 

 the excess cost in making them ready for the market. 



As has already been stated, the selling price of the calves in 

 the Ottawa experiments was reported for only two seasons, viz., 

 in 1901 and 1902. The prices brought by the calves and the three- 

 year-olds in these two seasons were as follows : 



The average difference for both seasons was 65 cents, or more 

 than sufficient to offset the increased cost required to make them 

 ready for market. 



In the case of the Kansas experiments, the three-year-olds cost 

 $1.94 per hundred more than the calves, or an average of $8.34 

 per head. This would have required a buying margin of 83 cents 

 per hundred for the three-year-olds, or a selling margin of 58 

 cents per hundred. 



The calves, as has already been reported, brought $4.25 per 

 hundred, while the 20 three-year-olds brought $4.95, or a difference 

 in favor of the older cattle of 70 cents per hundred. This, as in 

 the case of the Ottawa experiments, was more than sufficient to 

 offset the increase required to fatten them 



It cannot be too strongly emphasized that the older cattle did 

 not bring this extra price, because they were older or bigger, but 

 because they were fatter. 



YEARLINGS AND TWO-YEAR-OLDS CONTRASTED. 



As has already been pointed out, the difference between year- 

 lings and two-year-olds is less than between calves and yearlings, 

 probably because the bulk of the growth of the animal (the pro- 

 duction of proteid tissue) has taken place, and there is less dif- 

 ference in the composition of the gain between yearling and two- 

 year-olds than between calves and yearlings. Be this, however, as 

 it may, the extreme range in cost between yearlings and two-year- 

 olds varied from $1.32 in favor of the two-year-olds in 1904 to 

 $1.20 per hundred in favor of yearlings in 1900. The average 

 difference in all the trials at the Ottawa Experiment Station was 

 only 31 cents per hundred in favor of the yearlings. It should be 

 borne in mind, however, that in one of the trials at the Ottawa 



