38 



Bulletin 305 



of light, temperature, and ventilation were the same for all the lambs. 

 Clean salt and fresh water were kept before the lambs at all times. The 

 pens were kept well littered and dry. The general plan of feeding for 

 all pens was, hay and grain twice a day. and silage once a day to pens 

 A and D. For a basis on which to place the feeding, rations were 

 planned for each group. (Tables i, 2, 3, 4.) These rations were com- 

 puted for 50 lambs for one day on the basis of i.i pounds of dry matter 

 in the roughage per day per head, and i pound of dry matter in the grain 

 per day per head. These amounts were the average eaten by the lambs 

 in the Shepard experiment in 1909-10, when on full feed. (Bui. 285.) 

 The roughage was weighed at intervals of one week for each pen. 

 From these weights the amount of roughage eaten by each pen was de- 

 termined. Tlie silage was weighed at each feeding time for those pens 

 eating silage. The grain was weighed for each pen at each feeding. All 

 the food was divided as evenly as possible in the feeding racks. 



Table i. Ration for Lot A, 1910-11. On basis of food required 



FOR 50 lambs for I day 



60 lbs. silage. . 

 50 " hay. . . 

 35 " corn... 

 15 " oats. . . 

 5 " ajax. . . 



Total 



Lbs. 

 D. M. 



Lbs. 

 Pro. 



•54 

 2.90 

 2.80 

 1.38 

 1 . 10 



105.22 



8.72 



Lbs. 

 C. H. 



Lbs. 

 Fat 



6.78 

 20.40 



23 30 

 7. 10 

 1 .90 



.42 



.60 



1.50 



.62 



■54 



59 48 



3.68 



Nutritive ratio, i 7.8 



Table 2. Ration for Lot B, 1910-11. On basis of food required 



for 50 lambs for i day 



65 lbs. hay . . . 



35 " corn . . . 



15 " oats. . . 



5 " ajax. . . 



Total 



Lbs. 

 D. M. 



56.60 

 31.20 



13 34 



4.64 



105.78 



Lbs. 

 Pro. 



3-85 

 2.80 

 1.38 

 I . 10 



9- 13 



Lbs. 

 C. H. 



26.60 



23 30 



7. 10 



1 .90 



58.90 



Lbs. 

 Fat 



.80 



1.50 



.62 



•54 



3 46 



"Nutritive ratio, i 7.3 



