Shenandoah herald. [volume] (Woodstock, Va.) 1865-1974, 1924-01-18
Questions And Answers Relative
To Tuberculosis of Cattle

Continued from last week issue).
ASto the channels through
which the germ enters the body,
probably the most common path
OF entrance into the healthy
animal is through eating food
contaminated with the germs.
AS food from infected feed boxes,
hay racks, and water from an in-
feoted trough. Cattle may also
occasionally become infected
Through the respiratory svs EN-
AS for instance, inhaling stray
of infected material cougltd bv
an animal having open tuber-
culosis of the lungs. In tuber-
culosis of The skin, the germ
probably most frequently. if not
in every case. enters through a
break or abrasion in the skin. It
is easy to see how skin infections
may be contracted in this manner
from infected filthy barn Yards
| or from infected ponds or swamps.
So long as there are tuber-
culous animals to haTbor and
spread the disease. there are
many possibilities of tuberculosis
! germs gaining entrance TO. auy
herd. The usual way of intro
ducing the disease into a sound
or healthy herd, is by bringing
in infected animals, and by feed.
ling separated milk from cream
Ieries or cheese factories where
the milk from tuberculous cows
is received. The buying in" OF
the disease is very common
means of injecting previously
sound herds. The disease may
be communicated from an infect.
led herd to a sound ore through
Istreams of water, especially il
, 1.-THE distance is not TOO greai. az
the stream of water CON, el:".
1.-The Infection is protected lro",
sunlight.
/ When infection has gained
entrance into a herd, as through
the introduction of a tuberculous
COW, it is an easy matter to see
how 1t can spread from cow to
cow in a previously sound herd
The infected cow may be throw
ling off germs from the lungs,
THUS injecting the water trouglis,
| I'd boxes. managers and stables
and perhaps pastures. If the
newly purchased animal should
be in the initial stage of the
disease, it would probably be
sometime before the disease woul Id
spread through the herd. but all
the while the infested animal
may be giving off germs from
her body, which being deposited
in favorable places would remain
a constant source of infection to
other cattle in the herd, and b y
the time the owner would suspect
the cow of being diseased-as by
failing health the disease would
probably have spread through
the greater part of the herd.
Question. From what sources
do hogs get the disease?
Answer. Hogs get tuberculosis
from following tuberculous cattle,
and by feeding milk from cows
affected with the disease.
@. Do cattle affected with
tuberculosis show any definite
Isymptoms in the initial stages of
the disease?
h. No they may not, and often
Ido NOT in the pretty we'll advanced
cases.
Q How long will cow linger
with the disease?
A. Some cases may develop
aud die in a few months. but this
is rather uncommon Ordinarily
tuberculosis develops and pro-
crosses insidiously for months or
years.
Q III what part of the body is
the disease found on post-mortem
examination?
A. Most commonly in the
lungs, intestines, liver, spleen
and glands of the throat, though
it may be found IN any part of
the body.
O. Can tuberculosis be dag
tosed with any degree of accur-I
acy?
A. Yes.
Q. How?
A. By the tuberculin test
applied by a qualified veter
marian.
Q. What is tuberculin, aud
does it contain the germs that
cause the disease?
A. TubercuIin is the liquid |
usually bui lon containing |
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