9 2 



average total gain in height for the lot was 7.3 inches. The final 

 height of the calves averaged 37.6 inches, the individuals varying 

 from 35 inches to 39 inches. 



The relation between the height and live weight of the calves 

 at the end of each month during the first six months of the lives 

 of the calves in Lot III is as follows: at thirty days of age, the 

 lot averaged 2.69 pounds for each inch in height; at sixty days, 

 2.98 pounds; at ninety days, 3.49 pounds; at one hundred twenty 

 days, 4.28 pounds ; at one hundred fifty days, 4.85 pounds and at 

 one hundred eighty days, 5.34 pounds for each inch in height. After 

 sixty days of age, the calves maintained a uniform growth in rela- 

 tion to live weight until they were one hundred fifty days of age, 

 after which time there was a slight decrease. 



SUMMARY 



The consideration of the comparative efficiency of the various 

 rations used in this experiment is presented in the following dis- 

 cussion. So far, the discussion has had to do, only, with results 

 produced by each ration separately. Under this heading, the three 

 rations, previously discussed, are compared. 



LTVK WKIGIIT OF CALVES 



The calves, at birth, were quite uniform in weight so far as 

 the average for the lots is concerned. Lot I. receiving the skim 

 milk ration, averaged 61.7 pounds at birth. The calves that re- 

 ceived the home-mixed calf meal weighed 7.9 pounds or 12.8 per 

 cent, more than those that received the skim milk ration. Lot III, 

 receiving the Blatchford's Calf Meal ration, weighed 6.5 pounds or 

 10.5 per cent, more than Lot I and 1.4 pounds less than Lot TI. 



TAT, LI: XLTTT. Showing Summary of Weight of Calves 



Birth 

 weight 

 pounds 



T 



TT 

 I IT 



01.7 

 09.0 



08.2 



While the average birth weights for the three lots are quite 

 uniform, it should be remembered that the birth weights of the in- 

 dividuals in Lots II and III showed a wider range of variation than 

 those in Lot I. 



