— 8i — 



compare the amount of gain in relation to the amount and cost of 

 the food consumed that the most striking figures are brought out. 

 This is shown below in tabular form : 



Gain in Live Weight in ReivATion to Amount and Cost of Food. 



Lot 



Digestible carbonaceous food consumed, lbs. 

 Digestible nitrogenous food consumed, lbs. 

 Total digestible nutrients consumed, lbs. . . 



Nutritive Ratio . 



Total gain in weight (both lambs), lbs. . 

 Pounds nutrients consumed for i lb. gain 



Total cost of food consumed 



Cost of gain per loo pounds 



III. 



296.20 



29. 

 325.20 



1 : 10.9 



48.75 

 6.67 



I3-70 



7.59 



IV. 



288. oS 



75-88 



363-96 



I : 4.2 



77-31 



V. 



328.56 



54-71 



383-27 



1:6.5 



75-13 



4.71 5.10 



I4.66I $4-78 

 6.03 6.36 



VI. 



299-75 



51-73 



351-48 



1:6.3 



57-69 

 6.09 



I451 

 7.82 



Here again, both in the items, "Amount of food consumed for 

 one pound of gain," and " Cost of gain per 100 pounds," the ad- 

 vantage is very markedly in favor of Lot IV — the lot fed on nitro- 

 genous food. This is illustrated graphically on page 82. 



It cost us a little more than a cent and a half per pound, or 26 

 per cent, more to put a pound of gain upon our lambs that were 

 fed on corn, timothy hay and roots than it did to put a pound of 

 gain on those that were fed wheat bran, cotton seed meal, clover 

 hay and roots. 



THE WOOL PRODUCED. 



The lambs were shorn November 15th, or ten days before the 

 beginning of the experiment. They were shorn again the day be- 

 fore they were slaughtered, so that the wool obtained was the 

 growth of 160 days. The weight of the wool from both lambs in 

 each lot was as follows : 



Per cent, increase 

 Lot III 4.25 lbs. over Lot III. 



Lot IV 7.31 lbs. 72 



Lot V . . . . 6.63 lbs. 56 



Lot VI 6. 19 lbs. 46 



This coincides with the results of our experiments last year, in 

 that nitrogenous food seems to largely affect the growth of wool. 

 It seems to show further that even a small increase in the nitro- 



