65 



alfalfa hay. The alfalfa hay supplied 66.3 per cent. ; calf meal, 17.9 

 per cent., and the dry mash, 10.4 per cent, of the ash received by the 

 calves in Lot II. 



GROWTH OF CALVES IN LOT II. The average height of the calves 

 in Lot II at the end of the first thirty-day period was 31 inches. 

 The height of the different individuals in the lot varied from 27 

 inches to 36 inches. The rate of growth of the various individuals 

 during the five periods over which it is possible to report is as fol- 

 lows : second month, six calves increased two inches and four in- 

 creased one inch in height; the average gain for the period was 1.6 

 inches. During the third month, one calf gained three inches, six 

 two inches, and three one inch in height ; the average gain for 

 the period was 1.8 inches. The fourth month, three calves gained 

 two inches and seven one inch in height; the average gain for 

 the period was 1.3 inches. The fifth month, five calves gained two 

 inches and five one inch in height ; the average growth for the period 

 was 1.5 inches. The sixth month, five gained two inches and five 

 one inch in height; the average for the last period was 1.5 inches. 



The total gain in height is represented by one animal gaining 

 four inches ; one five inches ; two seven inches ; three eight inches ; 

 two nine inches ; and one ten inches. The uniformity in growth 

 during the five periods represented is interesting so far as the aver- 

 ages are concerned. The final height of the calves averaged 38.7 

 inches, with 36 inches as the minimum and 43 inches as the maximum. 



The relation between the height and live weight of the calves 

 at the end of each month during the six months under investiga- 

 tion in Lot II is as follows: at thirty' days of age, the lot averaged 

 3.11 pounds for each, inch in height; at sixty days, 3.59 pounds; 

 at ninety days, 4.06 pounds ; one hundred twenty days, 4.95 pounds ; 

 one hundred fifty days, 5.64 pounds; and one hundred eighty days, 

 6.32 pounds. The largest increase in height was made between the 

 third and fourth periods in comparison with increase in body weight. 

 The average monthly increase was .64 pound for each inch in height. 



