Pullman herald. [volume] (Pullman, W.T. [Wash.]) 1888-1989, 1911-08-04

nave ChTIISu Ou 6Ap0TlmSnIS on Inelr
own account. have gotten the best
results and have furnished the serum
to the farmers of the state at the
actual cost of production. Very lit
tie money was provided by the legis-
lature for this work-only $500 per
year being allowed-and the result
was that they could not undertake it
on as large a scale as the exigencies
of the situation demands, but by
economical use of the resources, by
requiring those who were supplied
with the serum to pay its actual cost
of production, they managed to do
a great deal of good DR., Marseller
has been sent for on several occas-
ions to take charge of herds of hogs
which had cholera and he has had
| fine success in the use of the serum.
1t is unnecessary to give the his
tory of the disease. 1t is found in
practically all sections of the United
States where there are hogs, a gov
eminent bulletin making the asser-
ton that it has been prevalent in
this country since 1888, when an out
break was discovered in the state of
Ohio. While outbreaks may occur
at any season of the year, the great
majority of instances are in the late
summer and fall. The mortality
has run as high as 100 per cent in
some herds, but the average is be-
| tween 70 and so per cent.
Dr.. Marsteller recently in a public
address called the attention of the
farmers to the many ways in which
cholera can be started in a herd of
hogs. He called attention to the I'M
sanitary conditions that are allowed,
damp or cold sleeping places, dirty
troughs and dirty drinking places.
He also related that hog owners car
ried the hog cholera germ from one
herd Of hogs to another If cholera
gets into a herd of hogs in the
neighborhood, Farmer Jones will go
over to see its effect, He will walk
about the pen, kick a hog to start
him up that he may see the symp-
toms. Then he will go back home
and arouse his own hogs. With the
same foot, he will kick one of his
hogs to see his symptoms. That
foot very probably has brought along
the hog cholera germ. According to
DIR. Francis and DR. Marsteler there
are many ways the disease may be
carried into herd of hogs, but the
main thing to be done is to keep
the germ away from the hog herd.
1t requires the sacrifice of live
hogs to produce the serum. DR..
Francis and DR.. Marsteller, at the
A. & M, College, use the immuning
method which was discovered by the
bureau of animal industry of the
United States department of agricul-
ture, which is as follows:
A vigorous hog-that is, one
which has recovered from an attack
of hog cholera or which has been ex-
posed to the disease without con-
tracing it's treated with a large
quantity of blood from a hog sick of
hog cholera. After a week or two
blood is drawn from the immune by
cutting off the end of the tail. After
standing, the blood clot is removed
and the serum or fluid portion of the
blood is mixed with a weak solution
of carbolic acid and filled into steri-
lied bottles. There is in this fluid
portion of the immune's blood the
serum which will protect hogs from
hog cholera. This serum is used in
either one or two ways, viz: G)
The serum incubation; ca the sim
ultaneOus incubation. These two
methods of treatment are carried out
as follows:
Serum incubation - The hogs
which are to be protected are injec-
ted on the inside of the hind leg with
suitable dose of the serum alone.
This injection will serve to protect
hogs from hog cholera for several
weeks and in some cases for a Ion
ger time, but if the hog is not ex-
posed to hog cholera within a few
weeks after this treatment, the i'm
munity which is conferred by the
serum will gradually lessen in degree
and the hog may again become sus-
| ceptible. If, however, the hog is
exposed to hog cholera within a
short time after the injection of
the serum, the i'm munity becomes,
so far as experiments have shown, of
permanent and lifelong duration.
From what has been said it will be
seen that the injection of the serum
alone is especially to be recommend
ed in cases where there is immediate
danger of exposure, especially when
U II Ia hnoc