UNITED STATES DEPARTMENT OF AGRICULTURE 
¥, BULLETIN No. 752 ¢ 
W/ Joint Contribution frem the Bureau of Plant Industry, WM. aN cat 
TAYLOR, Chief, and the Bureau of Anima! Industry 
J. R. MOHLER, Chief 
Washington, D. C. Vv April 24, 1919 
THE UTILIZATION OF IRRIGATED FIELD CROPS 
FOR HOG PASTURING. 
By F, D. FArrett, formerly Agriculturist in Charge of the Office of Demonstra- 
tions on Reclamation Projects. 
CONTENTS. 
: Page. Pasturing alfalfa—Continued. Page. 
Some important factors in swine production Pasturing alfalfa supplemented with 
On Tee 1727 NG ee Se eee ee te 1 mixed concentrates.............:..---- 19 
Character and use of experimental data....-. 4 Comparisons of various supplementary 
iPastgiran? alialfas.- = 4552-02. lek eee 4 feeds for alfalfa pasture........--.---.- 20 
Pasturing alfalfa without supplementary © Alfalfa pasture for sows and pigs-.......-- 22 
(EG |) 5 Se 6 Effect of pasturing on the alfalfa stand... 23 
Pasturing alfalfa supplemented with corn 8 | Pasturing sweet clover...............-.--.-- ' 24 
Pasturing alfalfa supplemented with Orrin ponCropsessececeeee cece eee ee relee 25 
ICV eee eee 2/2 sean cisssicistemn cles Ses iby (COTTE ACT VL RSS ols Ca al aie ree a 26 
Pasturing alfalfa supplemented with milo 16 Hel dipeas soa. Eee E EL pisses oe sue wake ee 29 
Pasturing alfalfa supplemented with IORI Sonesbeesonsscooeucaccss 32 
wheat and shorts.............-..-...-- 17 ie Grainlsoreiumsse een ee eee 33 
Pasturing alfalfa supplemented with Publications on swine production........-.-- 33 
FRIUALOES ees eA) o53 oe ae chasis a TSis|) Starman ary ioe se ae a ae aie cee ee oc 35 
SOME IMPORTANT FACTORS IN SWINE PRODUCTION ON 
~ IRRIGATED LANDS. 
On nearly every irrigation project in the United States it is pos- 
sible to produce pork in commercial quantities. Swine growing has 
proved to be one of the industries through which the irrigation 
farmer can utilize certain of his field crops advantageously. The im- 
portance of this industry in irrigated districts fluctuates widely from 
year to year in response to various changes in economic conditions. 
One of the most important economic factors influencing swine pro- 
duction in these regions is the relationship between the prices of feeds 
and the prices of pork. Frequent changes in this relationship have 
resulted in great instability in the swine industry on irrigated lands 
and this has led to much economic loss. 
86508°— Bull, 752—19——_1 
