any 
EXPERIMENTS ON WINTER FATTENING OF LAMBS. 225 
17 days each, and the rations fed during the three periods varied 
slightly. The feeding stuffs used in this test were similar to 
those used in tests 1 and 2. The amount and proportions of 
the clover rowen and corn silage were nearly the same through- 
out the three periods. Any feed left in the racks was removed 
after a reasonable length of time, re-weighed, and deducted. 
The amount of refuse feed, however, was very slight. At the 
start, corn and pea meal in equal parts were used. After the 
first two or three weeks it became evident that this was not a 
ration upon which the animals would continue to thrive and 
remain vigorous. Toward the end of the first period some of 
the lambs were becoming lame; and, on the whole, the lambs 
were not making good growth. 
After feeding about ten days in the second period, a small 
- proportion of wheat bran was added to the ration. The bran 
apparently was not added in sufficient quantities, and the gains 
made during this period were not equal to the gains made in 
the first period. During the third period there was added a 
larger proportion of wheat bran, making the ration one part 
each of pea meal and bran, with one and one-third parts of 
corn. This had a very beneficial effect, as seen by the large: 
increase in weight during the third period. 
The kinds and weights of feed and the total digestible nu- 
trients fed per day during the three periods are shown in 
Table 44 beyond. The proportions of total dry matter and of 
digestible nutrients were estimated from average figures for 
composition and digestibility of the several kinds of food ma- 
terials. 
Cost of Producing too Pounds Gain in Live Weight. — At the 
beginning of the first period, December 1, the 200 lambs 
weighed 14,700 pounds, and their weight December 15 was _ 
15,840 pounds, giving a gain of 1,140 pounds in 15 days, or at 
the rate of 5.7 pounds per lamb for the period. 
“The second feeding period was from December 16 to Jan- 
uary 1, 16 days. Near the end of this period it became neces- 
sary to butcher four lambs that were losing the use of their 
limbs, and their live weight was taken and included in the total 
weights at the end of the experiment. The weight of 200 
lambs on December 16, was 15,840 pounds. The weight of 
200 lambs January 1 (including four killed during the period) 
was 16,530 pounds, showing a gain in 16 days of 690 pounds. 
15 
