The citizen., 1913-12-19

pressure produced by the introduc-
ton of such great quantities of blood
under the skin causing assesses.
The second way is the slow sub
! cutaneous method which has less radi-
cal effect on the hog, and is less likely
| 10 cause assesses. 1t takes a longer
time to produce a hyperimmune than
the first way. Administer doses of
one, two and one-half and five cubic
centimeters per pound of body weight
/ seven TO ten days apart, thus giving
/ the immune ample time to recover
| from the transitoTy effect produced.
The third way is known as the
abdominal method introducing the
! virulent blood directly into the peri
toneal cavity The dose is the same
as in the first way. Care must be
taken not to puncture the bladder
This method is best employed by
suspending the animal by the hind
legs and allowing the abdominal con-
tents to rest on the diaphragm. then
inserting the needle through the wall
7 of the abdomen about two or three
| inches below the anterior borders OF
the pubs, an inch or two inside OF
! the median line to avoid puncturing
| of the bladder
! The fourth way by intravenous in
lection. Virulent blood is introduced
directly into the circulation by way of
| the ear-vein at one dose. Five cubic
centimeters per pound are prescribed
1t is difficult to reach the veins. be-
cause of the coarse ears. and often
the veins are scarcely visible. How
ever, this method is trifle more
| potent. A $50 pound hog requires 750
cubic centimeters of serum.
How the Serum Is Obtained
The hog is placed on the table and
then washed, the tail is thoroughly
washed with an antiseptic solution
and lukewarm water and soap. and
| then with weak solution of alcohol
! Before preparing the hog bottles are
washed and sterilized and covered
with a cloth which has also been
sterilized. A piece of the tail is ampu-
tated, and in this way the blood is
uIdNn lIOtu tu6 HOB.
From hog weighing $50 pounds
about three pints of serum is obtained
at one bleeding. A hog can be bled
four times before he has to be hyper
immunized again. The blood received
in this way is defibrinated, and the
small amount of carbolic acid is added
to preserve it, and does not injure its
protecting power. The blood is then
ready for use.
A hog weighing $50 pounds will
yield from 80 to 100 doses of vaccine
at one bleeding. A hog can be bled
once every eight or ten days The
above are government directions.
After the serum has been tested
and found to be potent it is put UP
in bottles of three sizes, sealed and
stored in a cement cellar, where il
can be kept at even temperature
| until used.
Some Dangers to Be Avoided
From the fact that there is always
more or less fever caused by vaccina-
| tion, and more or less danger of the
animal becoming infected through the
wound made by the needle of the
syringe, the following after treatment
is recommended:
Spare diet for three or four days,
| especially of corn, but plenty of wa
ter, thoroughly clean and comfort
able pens with plenty of clean bed
ding. with absolutely no chance to get
into the mud of any kind. The more
mud and dirt the more danger. They
should not be dipped or operated upon
for at least two weeks after vaccina-
| ton.
When the disease makes its appear
ance in the neighborhood, all the well
hogs should be vaccinated, and all the
sick hogs should be destroyed and
burned, and should any of the vac
| cinated hogs develop cholera, they
TOO, should be destroyed and burned
This will prevent to certain extent
| the spread of infection. Among the
most convenient and efficient agents
| for destroying disease-germs rank
heat, solution of creolin, carbolic acid,
caustic soda or sulphate of copper,
| fumes of chlorine, chloride of lime,
slake lime, lime water and kerosene
oil
All straw, cobs and litter should be
removed, and if cholera is present,
1 burned, and strong solution of some
| good coaltar dip or crude carbolic
acid about one part of the dip to
twenty of water, used on all woodwork
and floor of the pen.
! Though hog-cholera is net communi-
cable to man, there is danger of an
4 thrax, septic infection and tubercu-
losis. II a person has a sore on his
/ hand he should not touch dead ami
NAL, or if he should receive a cut or
4 scratch during the examination. the
hand should be placed in pure kero-
sene at once.
because alfalfa, clover, soy beans and
other leguminous plants have the pow
er to take nitrogen from the air and