22 The: Colorado Experiment Station. 
once a day. A few trials indicate that a light daily feed of pota¬ 
toes or roots is beneficial for hogs fattening on peas. 
Hogs drink a much greater quantity of water when eating 
peas than they do when given a starchy feed like corn. When hogs 
are confined in a small lot, and the peas are fed close to a trough of 
water ,they will take a drink of water between every mouthful or 
two of peas. When turned into large pea fields to fatten, hogs 
often have to travel from one-fourth to three-fourths of a mile to 
water and they wait too long between drinks. Most hogs will travel 
too much in a large field to finish well. 
The peas are often stacked and the unthreshed vines fed 
through the summer to breeding stock and growing pigs. Sows on 
this feed give milk abundantly, but become very thin. 
The quality of the pork and the cheapness of its production 
merit a wide development in pea feeding. San Luis Valley has a 
tillable area equal to the entire state of Connecticut, and if one- 
half this tillable area was devoted to hog raising, there could each 
year be marketed from the valley over three million well fattened 
hogs. The area of land in Colorado adapted to pea growing out¬ 
side of the Valley is probably greater than that in the Valley. 
Field peas thrive in Colorado at an altitude of 6,500 to 8,000 
feet. They have, so far, not proved to be a profitable crop at lower 
elevations. Mr. J. H. Empson, Longmont, who raises hundreds 
of acres of peas for canning each year, and has made a careful 
study for 20 years of pea growing, stated to the writer that he 
believed that field peas would be a profitable crop on irrigated land 
at an altitude of 5,000 feet, if they were seeded in February. Later 
seeding would certainly fail. 
Barley is adapted to every tillable section of the State, except 
possibly the Arkansas Valley. The feed and malting varieties of 
barley yield well in irrigated sections having an altitude of from 
5,000 to 7,5°° or 8,000 feet, and bald barley is adapted to the 
plains and to high altitudes. The yield of barley in the irrigated 
sections will ( produce more pork per acre than will the average 
yield of corn in the corn belt. Barley is produced at less cost per 
acre in the irrigated sections of Colorado than corn in the Mis¬ 
sissippi Valley. 
The English market is the most critical in the world for bacon, 
and Denmark sells to England each year bacon from barley-fed 
hogs to the value of over eighteen million dollars. Danish bacon 
from barley-fed hogs sells on the English market for an average 
of 46 per cent, above the average of the American bacon from corn- 
fed hogs. The high yield of barley, the cheapness of its produc¬ 
tion, its adaptability 1 to all sections of the State, and the superior 
quality of the pork made from feeding it, should make Colorado a 
