274 



cotton-seed meal ; lot V, an '' intermediate " ration, consisting of tim- 

 othy hay, roots, corn, wheat bran, and cotton-seed meal; and lot VI 

 the same as lot Y, except that they received no roots. The ration of 

 lot III was considerably richer in carbonaceons matter than that of 

 lot II of last year, while the ration of lot TV was not so rich in protein 

 as that of lot I of last year. In this experiment, as in that of 1888, 

 a very much larger amount of water was drunk by the lambs fed the 

 nitrogenous rations. Lot III drank 30S poundi^, or 1.08 pounds per 

 lamb per day. Lot IV drank 1,185 pounds, or 3.05 pounds per lamb 

 per day. Lot V drank 735 pounds, or 2.45 pounds per lamb per day. 

 Lot VI drank 847 pounds, or 2.82 pouuds per lamb per day. 



The total number of pounds, cost, and number of pounds of protein, 

 nitrogen-free extract, fiber, and fat for each material in the rations 

 consumed by the several lots and the gain in live weight in pounds 

 and in per cent for each land) in each lot are given in tabular form. 

 The amount of gain in live weight in relation to the amount and cost 

 of food consumed by each lot is shown in the following table : 

 Gain in live loeigld in relation to amount and cost of food. 



Digestible carbonaceous food consumed pounds 



Digestible nitrogenous food consumed _ do. . 



Total digestible nutrients consumed _ do_ . 



Nutritive ratio. 



Total gain in weight (both lambs) pounds. 



Pounds nutrients consumed for 1 pound gain _ _ _ 



Total cost of food consumed 



Cost of gain per UK) pounds 



III. 



IV. 



V. 



296.20 

 29 

 325. 20 



288.08 

 75. 88 

 363.96 



328.56 

 54.71 

 383. 27 



1:10.9 1:4.2 1:6.5 



48.65 

 6.67 

 S3. 70 

 $7.59 



77.31 

 4.71 

 S4.66 



$6. 03 



75.13 

 5.10 



S4.78 

 S6.36 



VI. 



299.75 

 51.73 

 351.48 



1:6.3 



57. 69 

 6.09 

 |4.51 



$7.82 



It Avill be observed that " both in the items 'Amount of food con- 

 sumed for one pound of gain," and ' Cost of gain per 100 pounds.' the 

 advantage is very markedly in favor of lot IV — the lot fed on nitrog- 

 enous food. It cost us a little more than a cent and a half per 

 pound, or 2G per cent 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 lambs were shorn November 15 (ten days before the begimiing 

 of the experiment), and again on April 24, so that the wool obtained 

 was the growth of one hundred and sixty days. 



" The Aveight of the wool from l)otli lambs in each lot was as fol- 

 lows : 



