12 BULLETIN 752, U. S. DEPARTMENT OF AGRICULTURE. 
When the grain rations fed the pigs in these cooperative tests are 
considered, the results obtained, as indicated by the average daily 
gain and the grain fed per hundredweight of gain, compare not un- 
PI92RP. 
Fic. 3.—Portable weighing outfit used in the swine-production tests conducted in co- 
operation with farmers. The crate and the weighing frame are easily taken down and 
transported from place to place. 
favorably with those in the tests made on the experiment farms. It 
will be noted that increased grain requirement per unit of gain was 
closely associated with increased size of the grain ration. 
TABLE VII.—Results secured in cooperation with farmers with ten lots of piys 
on irrigated alfalfa pasture supplemented with corn on three reclamation 
projects in 1915 and 1916. : 
e ae Average = Average Grainfed 
: : rie orm umber |} ~; =). ime aily per 100 
Pigs. Project. Year. ration. | of pigs. ae oftest. | gain pounds 
F per pig. | of gain. 
Per cent. Pounds.| Days. | Pounds. | Pounds. 
bays We saasosee | Uncompahgre....- 1916 1.30 22 114 33 0. 70 298 
oto ses North Platte.....- 1916 1.86 87 7045 31 - 40 241 
Woes Ses. ee leoeee (0 ee re a 1915 2. 24 94 23 118 42 274 
Wine eteeceselsoases CO ee ae 1915 2.58 64 66 31 76 263 
IDOE DY dusopeealladesd GO tet see 1916 2.62 84 43 31 48 276 
WotiG=esaee bunt leyeeeeeeeeee 1916 3.00 22 66 93 u 332 
WOE oscosonse North Platte...... 1916 B},8))l 94 118 68 1.25 415 
Otis er cand eee Cle eseues sa 1916 4.87 19 175 27 2.07 478 
Aol RAY Se a ee Sets es he GOS SMe see 1916 4.90 77 153 36 2722, 414 
IDG PMO ceacaes Naeaed Ones deeestcee 1915 6.95 | 33 139 19 2.24 494 
| 
Summary.—The tests with the 44 lots of pigs on alfalfa pasture 
supplemented with corn included 895 head. The character of these 
animals, the quantities of grain fed, the methods of management, 
