36 BULLETIN 1752, U. 8. DEPARTMENT OF AGRICULTURE. 
Hogs on alfalfa pasture supplemented with about a 2 per cent 
ration of corn, barley, wheat, shorts, or milo will consume from 250 
to 3800 ae of grain per 100 antmele of gain. In general, the 
grain requirement increases with the increased size of hogs and 
with increased grain rations. The feeding values of corn, erler. 
shorts, and milo as supplements to alfalfa pasture differ from one 
another so little that the choice among these supplements should de- 
pend on prices, cultural adaptability, and general economic condi- 
tions. When the grain supplement is to be produced by the swine 
grower, preference usually should be given to corn, barley, and the 
grain sorghums, depending on the adaptability of each of these crops 
to local conditions in each instance. 
An acre of good alfalfa pasture supplemented with as sities as a 2 
per cent ration of grain has an average hog-carrying capacity of 
about 2,500 pounds of live weight for the growing season. Carrying 
capacity increases rapidly with imcreased grain allowance, and it 
varies somewhat during the growing season with the rate of crop 
growth. 
An acre of good alfalfa pasture, if supplemented with a 2 per cent 
ration of corn or barley, will support 6 to 8 sows and 50 to 70 suck- 
ling spring pigs for a period of about 60 days in early summer, dur- 
ing which time the pigs should gain 25 to 30 pounds each. At the 
close of this period the pigs should be ready to go into alfalfa pasture 
by themselves for the remainder of the growing season. 
_ The few tests so far conducted indicate that white sweet clover 
is not to be regarded as a rival of alfalfa as hog pasture. The crop 
is valuable to irrigation farmers chiefly for use on soils which are 
too wet or too salty for alfalfa. 
The practice of hogging off corn and field peas is a desirable one. 
for swine growers on irrigated lands, in that it saves labor, produces 
satisfactory gains on the hogs, and adds manure to the soil. 
The gains made in the tests of hogging corn reported in this, bulle- 
tin ranged from 183 to 1,048 pounds per acre of corn when no supple- 
mentary feed was given and from 335 to 1,377 pounds per acre 
where the corn was supplemented. It is estimated that in these tests 
an average of about 450 pounds of corn was required to produce 100 
pounds of gain when no supplement was used, as compared with an 
average of 409 pounds when the corn was supplemented with tankage, 
late alfalfa pasture, or rape. Alfalfa pasture is to be preferred as 
a supplement to corn in hogging off enterprises on irrigated lands 
because of its cheapness and reliability. 
The tests reported show that field peas have a high value as an 
irrigated crop to be hogged off. The gains in live weight per acre 
of peas in 17 tests ranged from 250 to 949 pounds, averaging in the 
