Coeur d'Alene evening press. (Coeur d'Alene, Idaho) 1907-1929, 1909-01-30
END OF HOG CHOLERA
Missouri Agricultural College Per-
fects Antitoxin Serum.
GREAT SAVING TO FARMERS.

,muroved Method lrpmunizes Swine
AGAINST Dread Disease and Prevents
wholesale outbreaks--WilI Greatly
Reduce Price Of Pork-Lossss Turned
10 Profits-System Of incubation.
Asa result of perfecting serum that
Is an antitoxin against hog cholera the
Missouri Agricultural college at Co
lumbia guarantees the state legislature
that with an appropriation of $4,000
year it will save the farmers of Mis-
souri, from $1.OOO,OOO to 100000 an
uually from the ravages of this dis
ease.
The serum was discovered by DIR. NJ.
Dorsett of the United States depart
ment of agriculture, but 1t was perfect
ed and made practical by DIR. j. W..
Connoway of the Missouri Agricultural
college. He has been working for
months on the problem and now has
the proportion exactly.
The Agricultural college announces
unequivocally that it is prepared to
yanquish that bane of the farmer, hog
cholera The discovery. which has been
tested and proved, will mean to the
animal world what antitoxin means to
humans and will reduce the price of
pork to minimum.
The Agricultural college here is re-
ceivlng letters from agricultural insti-
tutions and experiment stations all
over the country inquiring the results
obtained and asking for samples of the
serum and instructions in its applica-
ton.
By the improved method hogs are
immuned against cholera and out
breaks of the disease are stopped with
only the loss of those animals that
died or became seriously affected be-
fore the identity Of the disease was
discovered, and thus the spread of the
disease from one herd to a whole
neighborhood and from a neighbor-
hood to other sections is stopped, and
the immense amount of money that
Is lost annually by the farmers is
changed into profits.
The serum. or blood. is drawn from
what is known as hyperimmunized
hog, the fibrin being removed so as
to prevent CLOTHING. The serum is
treated with small quantities Of car
boic acid and when kept in a cool
place can be preserved from six to
twelve months. When hogs are to be
lnOeulated an assistant from the Agri-
cultural college injects from tea
spoonful to tablespoonful into the
ham of the animal.
hyperimmunized hog is produced
by first giving the cholera to well
hog and at the time injecting into him
q small amount of the serum. In
about ten days after he has recovered
from the effects of the treatment a
larger quantity of the blood from
hogs suffering with cholera is inject
ed, and this is repeated at intervals
Of ten days or two weeks, each time
Increasing the dose of infected blood
until as much as a quart or quart
and half is injected without affect
ing the health of the animal.
This amount of infection injected
Into the hog at one time is sufficient
to kill FIVE or more unimmunized AMI
mails, BY this means the immunity
z Of the subject is raised to a very high
degree. and the animal is known as Il
hyperimmunized hog The blood is
then drawn as. already described. In
< the absence of serum hyperlmmunizcd
hogs may be made by beginning with
hogs that have recovered in the nat
ural way from attacks of cholera.
The blood being injected into n hog
that is normally healthy, the same
process is followed
The blood, or serum, is drawn from
the tail of a hog. The hair is shaved
on the posterior part of the animal
and the surface Is thoroughly disin-
fected after giving the subject a bath,
Great care is taken against germs OF
blood poisoning.
An ordinary hog will produce from
quart to quart and half OF serum
at bleeding. The bleeding can lie
repeated at intervals of ten days or
two weeks, depending upon the THRIFT
OF the hog. The operation can be re-
peated until the tail of the animal IS
entirely gone, each bleeding taking a
thin portion of the tail When the tan
by repeated bleedings is removed 10
the hams the hog is killed and all the
serum in his body is drawn of.