New York Agricultural Experiment Station. 573 



Age and Size Related to Gains. 



Although the birds in one lot were of the same age as those in 

 the other, the average size at the start was greater with Lot No. 1, 

 for the chicks in Lot No. I had grown the faster. The average 

 weight of the cockerels at the start was about 3.9 pounds in Lot 

 No. I and 3.7 pounds in Lot No, II. A difference in weight was 

 generally maintained until the capons were fully grown, the 

 average weight of 10 pounds being attained much sooner by Lot 

 No. I, and also the average weight of 11 pounds several weeks 

 sooner than by Lot No. II. 



While the gain was made much of this time at less cost by the 

 capons having the whole grain ration it was made by birds of 

 smaller size; and although by capons of the same age a gain was 

 made at less cost per pound under the whole grain ration it was 

 not the case with birds of equal size. 



In this feeding experiment, as in others, the cost of any in 

 crease in weight was greater as the birds approached maturity, 

 the most profitable gains being made by the young birds under 

 four pounds in weight. 



Cost at Different Ages. 



At five months of age the food from hatching for each bird in 

 Lot No. I having the ground grain had cost 35.-5 cents and for 

 each bird in Lot No. II 34 cents; but the average weight was 8.1 

 pounds in Lot No. I and 7.5 pounds in Lot No. II. Up to 6^ 

 months of age the average cost for food was, for Lot No. 1, 54 

 cents and for Lot No. II 52.2 cents; but the average weight at this 

 age was 10 pounds in Lot No. I and 9.5 pounds in Lot No. II. 



In the accompanying tables will be found stated the cost of 

 food up to different ages and weights. 



