10 
BULLETIN 752, U. S. DEPARTMENT OF AGRICULTURE. 
from 1,602 to 4,554 pounds per acre, and the grain fed for each 100 
pounds of gain ranged from 170 to 321 pounds. These data will be 
further discussed later. 
Experiments at the Huntley Experiment Farm. — The results ob- 
tained with pigs on alfalfa pasture at Huntley from 1913 to 1916, in- 
clusive, are summarized in Table V. There were in all 7 lots. Each 
lot had access to one-quarter of an acre of alfalfa and was fed a 2 per 
cent supplementary ration of corn. The same general methods were 
followed as for Scottsbluff, already described. 
Table V. — Results secured loi'th seven lots of pigs on irrigated alfalfa pasture 
supplemented with a 2 per cent ration of corn on the Huntley Experiment 
Farm during the k-year period from 19 IS to 1916. 
Time. 
Num- 
ber 
of 
pigs. 
Average 
initial 
weight. 
Time 
of 
test. 
Gain (pounds). 
Average 
carrying 
capacity 
per acre. 
Grain 
Pigs. 
Total 
per 
acre. 
Per 
acre 
per 
day. 
Per 
Pig 
per 
day. 
fed 
per 100 
pounds 
of gain. 
Lot 1 
Summer, 1913 
12 
Pounds. 
60 
Days. 
30 
744 
25 
0.50 
Pounds. 
3,452 
Pounds. 
301 
Spring, 1914 
Lot 2 
4 
9 
113 
41 
70 
1,012 
1,292 
14 
19 
.90 
.52 
2,206 
2,114 
323 
Lot 3 
223 
All season, 1914 
Lots 2 and 3 . . . 
139 
2,304 
16 
278 
Spring, 1915 
Lot 4 
5 
8 
158 
38 
80 
70 
1,256 
1,220 
17 
18 
.86 
.54 
3,784 
1,818 
414 
Lot 5 
212 
All season, 1915 
Lots 4 and 5. . . 
150 
2,476 
17 
313 
Spring, 1916 
Lot 6 
5 
8 
105 
44 
75 
70 
1,620 
1,412 
22 
20 
1.08 
.63 
2,906 
2,130 
260 
Lot 7 
Summer, 1916 
197 
All season, 1916 
Lots 6 and 7 . . . 
145 
3,032 
21 
228 
The 7 lots used at Huntley contained a total of 37 spring- farrowed 
pigs in 4 lots and 14 fall-farrowed pigs in 3 lots. The gains per 
acre of alfalfa ranged from 14 to 25 pounds per day ; the average 
carrying capacity varied from 1,818 to 3,784 pounds per acre, and 
the grain fed per 100 pounds of gain ranged from 197 to 414 pounds. 
Experiments at the Belle Fourche Experiment Farm. — The results 
secured with 10 lots of pigs are available from Belle Fourche. Each 
lot had access to one- fourth of an acre of alfalfa and received a 2 
per cent supplementary ration of corn. Each pasture was divided 
into two equal parts, which were grazed alternately, as at Scottsbluff 
and Huntley, and the methods used were essentially the same as those 
employed at the other two stations. The results are summarized in 
Table VI. 
At Belle Fourche were 6 lots of spring- farrowed pigs, a total of 
43, and 4 lots of fall-farrowed pigs, a total of 16, or 59 in the 10 lots. 
The gains per acre of alfalfa varied from 12 to 19 pounds per day, 
