Morris tribune. [volume] (Morris, Minn.) 1880-2000, 1911-02-17
HOG CHOLERA=-.NO. z.
BY Dr.. M. n. Reynolds, Mime
+ sofa University Farm.
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Symptoms of Cholera. Farmers
should understand that outbreaks of
cholera differ in virulence and differ
considerably in symptoms. 1t often
occurs that different hogs in the same
herd will show very different mani
festations of the disease. Hogs af-
fected with cholera show some of the
following symptoms: The animal is
! dull and refuses. to eat. Diarrhoea
appears early, as rule. The skin
turns red, and later becomes purple,
especially over the belly and TANKS.
The skin of the back may be SO badly
inf1amed that large sloughs of dead
! tissue occur. The eyes are infamed,
and have a sticky discharge, espe-
cially in young pigs. The eyelids may
even be glued together by this dis
charge.
The walk may be irregular; heavy
hogs are apt to wobble with their hind
legs when. walking, and this some
times persists for weeks in chronic
cases. Very many cases show mild
chronic cough, noticed especially
when the hogs are forced to move
around.
It frequently occurs that the first
cases are exceedingly severe. The
disease sometimes develops SO rapidly
in these first cases that hogs die be-
+ho ic hot 10
been sick. Such cases show little in
the way of ordinary hog-cholera symp-
toms. Later on, cases become less
acute, and develop the ordinary type
of hog-cholera, with which most farm
ers are familiar. Toward the end of
an outbreak, cases become mild and
slow; hogs may be sick and drag
around for weeks. Some of these
eventually recover; others die AS
rule, it is scarcely worth while to try
to save such slow, chronic cases at the
end of an outbreak. 49, T..
The Carcass. The hog-cholera car
cass usually shows certain character
istic conditions, which will help the
farmer to know whether the animal
has had genuine cholera or some other
disease; and early information on this
point may save his herd. About the
first things noticed are the red and
purple skin, and infiamed eyes and
scabby ears. The fat tissues fire.
quently show small red blood-spots.
Opening the chest cavity, the farmer
will, in most cases find very peculiar
lungs. A special form of pneumonia
is one of the features of hog-cholera
This pneumonia may easily be dis
tinguished from common. pneumonia
as rule. In hog-cholera lungs, the
diseased areas look Like liver, and are
sharply Defined, i. e., the border be-
tween healthy lung-tissue and that af-
fected by the hog-cholera is sharply
defined, The healthy lung does not
shade off gradually into the diseased
portions, but. we have; the pink,
healthy-appearing lungzstructure jut-
ting squarely UP against the diseased
Common pneumonia usually involves
large areas or whole lungs. Hog
eholero pneumonia frequently involves
very. small parts here and there. VIII,
there are other infections, with the
hog-cholera we get general pneumonia.
The stomach lining is frequently in
famed and thickened, and in the slow
er cases it shows small ulcers.
If the farmer who wants to learn,
and who suspects he has lost hogs
from cholera, will take a pair of
shears, dull one point, and split open
the large especially at the
point where the small bowel joins
ne will find areas of intense inf1amma-
ton in the acute cases, or well-defined
ulcers in the more chronic cases. The
small glands which follow in chain
along the small intestines are apt to
be intensely inflamed