Bismarck daily tribune. [volume] (Bismarck, Dakota [N.D.]) 1881-1916, 1901-06-24
NATURE OF SCAB IN CATTLE.
Interesting Scientific Paper Presented
/. to Morton County Stockmen by
s # 7. DR.. Treacy. -E.ss IL i
Nature of Scab in Cattle, Its Develop
!. rnent and the Remedies to be
sl3E .%.y:, APpAed. $:,ni
Several Hundred Extra Copies of the
= Paper Have Been Ordered Printed
!. g. for Distribution.

5=,ls&r lOI OaSCTlDultOn. .. I
The following from DR.. Treacy's ad-
dress before the Morton county stock
men, relative to scab in cattle, will be
Of benefit to all owners of stock:
The mite of the OK is visible to the
eye under favorable conditions-if the
mite is isolated on a dark background,
as on black paper, they can be seen
plainly as they move about. Sunshine
or mild heat will cause the mite to,
move. They will be found in the
crusts and in the hair. They infect
the, back, shoulders, rump, and in very
bad cases we'll down on the legs:
The female mite, which is the larg-
est in size, lays from Is to "a eggs on
the skin or attaches them to the hair
near the skin. A six-legged larva is
Matched; the larva cast their skins and
become mature; they pair and the fe-
males lay their eggs and die. Ger
ZACH estimated in 1857 that it took
about fourteen to fifteen days for the
generation of mites from the time of
nairing to maturity of the next gen,
GRAFTON; dividing the time as follows:
eggs hatch in three or four days, three
OF four days after birth the larva moult
and the fourth pair of legs appear;
when seven or eight days old the mites
are ready to pair. Allowing several
days for pairing, another generation
of eggs may be laid fourteen or fifteen
days after the first generation. Ac-
cepting this estimate, 'tas it is the. one
generally conceded to be correct" as
an average for each generation of ten
females and males, in three months
time the sixth generation would appear
consisting OF. about 100000 females
and 100000 males. This will give you
an idea of the rapidity of the spread
of the scab.. 49,.
The symptoms of scab are as fol-
lows: Itching, irritation, formation of
papules, Inflammation, exudation of
serum, and the formation of the scabs
OF crusts under and near the edge of
which will be found the mites. As
the parasites multiply they seek the
more healthy parts, spreading out, TAX
ing in more territory and extending
the disease. The animals scratch and
dig; will spend a great deal of the time
licking themselves; will rub on posts
hard enough to often break the posts
off; will scratch on wire until the skin
IS bloody. The scab will get thicker
and harder as the disease progresses,
until in the latter stages the back,
sides, rump and shoulders are all one
scab. Will feel stiff and boardy, hair
stands straight, will be rubbed off and
raw in spots. The skin under the
scab is dry and hard;, cracks and fis-
sures appear; skin resembles the skin
of an elephant or large boar. The
hair will pull out in flakes raising the
scab with it, s5s ...
f When the disease gets far enough
advanced and the animal becomes
thin, it will stand and refuse to move;
appetite is good, but no amount of food
will strengthen until then mites are
killed. r. Y .>es-.-.s,,.'.E ~,
The only cure is to dip eight to ten
days apart, and the most desirable dip
is the old fashioned lime and sulphur
dip about al6 pounds of Sunslacked
lime and twenty pounds of flowers of
sulphur to 100 gallons OF water ap-
piled hot. This is a certain cure il
all the necessary precautions are taken.
Every animals should be dipped two
minutes in a tank deep enough to dip:
It ali over and tthis operation should
be repeated ID, eight days. The first
dip kills the mite; the second kills the
larYa that are hatched from the eggs.
Dip should be heated to los or 1lo de-
grees. not. lower than 1O2 at any
time t5$s b $s3
III This disease exists in Montana,
rthWest TerritoIie ies and Id North
Z Dakota as well as in some Of the
sonther states It will spread over:
an entire range Ia one summe mer, which,
/ II allowed by a hard winter, viii
cause very heavy losses. ssscab does
not show very bad ii the summer
months but contrary to many reports
does NOT disap 1,ear. Owing 10 the
summer rains and the improved condi-.
ton of the animals sor grass, II can
not make the inipr pression that II does