DISPOSAL OF IRRIGATED CROPS THROUGH THE USE OF HOGS. 7 
On an acre basis, the four lots made an average total gain of 1,271 
pounds during the first period and 1,910 pounds during the second 
period, or a total of 3,181 pounds for the season. During the first 
period the hogs were fed 3,671 pounds of corn and during the second 
period 4,173 pounds, or a total of 7,844 pounds during the season. 
It required 2.88 pounds of corn in the first period and 2.18 pounds 
in the second period, in addition to the alfalfa pasture, to produce 
1 pound of gain. For every 100 pounds of corn fed the hogs made 
a gain of 34.7 pounds during the first period and 45.9 pounds in the 
second period, or an average of 40.5 pounds during the season. 
With hogs at $7 per hundredweight and corn at $1.07 per hundred- 
weight the net return per acre of alfalfa pasture was $49.70 for the 
first period and $89.05 for the second period, or a total of $138.75 
for the season. This is equal to a daily net return of 90 cents an 
acre for the entire period of 154 days. If a charge of $5 for the first 
period and $10 for the second period is made for an acre of alfalfa 
pasture, the feed required to produce 100 pounds of gain cost $3.36 
during the first period, $2.86 during the second period, and $3.11 
for the season. 
Alfalfa plats similar to those pastured and in the same field have 
each year been harvested for hay. The three-year average yield of 
these plats was 5.52 tons per acre, or 2.24 tons for the first period 
and 3.28 tons for the second period of pasturing. On the basis of 
this yield, if it is assumed that the cost of caring for the hogs is 
equal to the cost of harvesting the hay, the hogs in the first period 
paid $22.19 and in the second period $27.13, or an average for the 
season of $25.13 a ton for alfalfa hay. 
ALFALFA PASTURE WITH VARIOUS GRAIN SUPPLEMENT^. 
EXPEKIMENTS IN 1914. 
In 1914 experiments were inaugurated to secure information re- 
garding (1) the most economical quantity of corn to feed to hogs on 
alfalfa pasture, (2) the relative efficiency of 2 per cent corn and 2 
per cent ground-barley rations as supplements to alfalfa pasture, and 
(3) the carrying capacity of alfalfa pasture when no supplement is 
fed. 
The alfalfa pastured in these experiments was seeded on April 6, 
1912, hay having been harvested from the plats during the seasons 
of 1912 and 1913. The yields of the different plats during these 
years were very uniform. Figure 2 gives a view of the alfalfa 
pasture used in this experiment. The hogs used during the first 
period were a very inferior lot. They were a mixture of several 
breeds, ranging from high-grade Berkshires to scrubs and varying 
in size from 50 to 160 pounds. 
