L72 
BUREAU OF ANIMAL l.MH BTBT . 
;iik1 a trial plot showing a yield of 740 bushels per acre. The pigs had 
f ree access to the held and did all the harvesting. An attempl to 
Biistain them entirely od the tubers failing, some shorts were fed in 
add if inn. 
Ai Ottawa, Grisdale* sowed a plot of one-sixteenth acre with aboul 
70 pounds of tubers on May L9, planting in rows 24 inches apart, 4 
inches deep, and 20 inches apart in the rows. >i\ pigs were turned 
in I October :;. Although the tubers were immature at that time, the 
tope were from LOto L3 feet high. The pigs wrere allowed a daily grain 
ration <>f 1.5 pounds of a mixture composed <>i" one-half corn meal and 
one-half of a mixture <>r equal parts of ground oats, pease, and barley. 
In both experiments the Jerusalem artichoke { Hdianthustuih rosus) 
was lived. The following table shows 1 1n- results: 
Artichoh a tufi • dfor pigs. 
Station. 
( tttuwa 
Pounds. 
102. t; 
104.6 
Total 
Pounds. 
-.'14 
UR 
Num- . , , 
u'iiin". 
per WO Bfra Sy* r 
fed. pounds pW 
gain 
gain 
Is. Found*. 
1.67 US 
['•mulls. 
Dollars. 
• 
Tin' cost of the meal in the Oregon experimenl was estimated at 
$12 per ion; that in the Canadian one al $18 per ion. Valuing the 
meal made al $6.25 per K><» pounds, Grisdale estimates that, after 
deducting tin- cost of the meal fed, a balance of $10.61 is left for the 
artichokes fed, and deducting from this the cost of seed, planting, 
renl of land, etc., the one-sixteenth acre used gave a nel return of 
pork worth $8.7( 
ROUGHAGE. 
Hogs are generally regarded as animals whose peculiar function is 
the conversion of concentrated feed into meat. Although the capac- 
ity f<»r bulky U-in\ that we find in the stomachs of cattle and sheep is 
lacking in hogs, a reasonable amount of bulk in the form of roots or 
hay is palatable ami profitable. In many parts of the country, where 
concentrates are costly feeds, stockmen are forced i<» use substitutes 
for at least a part of the grain ration, both for fattening and mainte- 
nance, and over the entire country the winter ration is a problem. 
To solve these problems many western farmers have resorted to the 
!' alfalfa hay. and outside alfalfa districts clover hay is osed. 
Considerable si ndj lias been devoted to this subject by the experimenl 
stations. 
Alfalfa h'ii/. The Kansas Experimenl station has reported a 
series of experiments with drouth-resistant crops. Three of these 
An. Rpt 1900, Centra] Experimental Farm. 
/'Bnl. No. 05. 
