The Ordway new era., 1909-07-16
LOCO DISEASE
OF LIVESTOCK
RESULTS OF INVESTIGATIONS ~
UNITED STATES BUREAU OF
ANIMAL INDUSTRY.
BAR|UM IS The CAUSE
PREVENTION is BETTER THAN
CURE, BUT REMEDIES ARE
PRESCRIBED BY BUREAU.

The so-called loco disease Of horses
sheep and cattle has been for many
years "A source of serious loss to stock.
men in the West, who have generally
attributed ii to certain weeds eaten by
the stock. Investigations by the
United States Department OF Agricul
ture have not only confirmed the sup
position as to the poisonous effect OF
these plants. but have resulted in the
discovery and Identification OF barium
as "A definite poisonous element In
them. Feeding experiments estab
fishing the fact that the plants are re.
sponsible for the disease were carried
ON under field and corral conditions
by DR.. c. Dwight March. while the dis
covery of barium was made in the lab
oratory by DR.. A. c. Crawford.
The loco weeds are Il class of legu-
minous plants of which the principal
ones are the purple loco weed tAs
tragalus mollissimus) and the rattle
weed (Aragallus lambertD. One or
both of these prevail to greater or
less extent over an area including all
or parts of Montana. Wyoming. North
Dakota. South Dakota. Minnesota. Ne.
braska. Kansas. Colorado, Utah. Ari'
zona. New Mexico. Texas. and Okla
homa.
The characteristics OF the disease
are slow. staggering gait. rough coat.
staring. vacant look. and cmaciation.
The affected animals have hallucina
tions. cannot be led or backed. show
= more or less lack of muscular coordi'
nation. gradually lose flesh. and die.
The affection comes on In slow and
cumulative manner, and there Is no
possibility of animals becoming i'm.
mune by continually eating the plants.
The provrrb, 'an ounce of proven.
ton is worth II pound of cure" applies
. to this disorder. Although good re.
[ suits can often be obtained by the
I treatment OF locoed animals. the most
I effective way of dealing with the trou.
/ BILE is to keep animals from eating the
loco plants. Wherever practicable.
the weeds should be eXterminated
from the range or pasture. and the
best way OF doing this Is simply TO cut
I while often practicable on land under
. private control. cannot very well be
applied to the public range. In many
q cases much can be accomplished by
I keeping animals away from loco.cov-
[ cred ranges during the time when feed
! is short. as they are much more likely
/ to contract the habit nt such a time.
: II may sometimes be profitable to
I feed them for a short time in order
I that the loco.caring habit may not be
! formed.
After animals have become affected
/ the first essential in their treatment
! Is to place them where they cannot
eat the loco weeds. They should be
given plenty of nutritious feed. and
so far as practicable feed with laxa.
| tive properties. such as green alfalfa.
Some may recover under this treat
mcnt without recourse TO medicine.
With most animals. however. recovery
is hastened by medicinal treatment.
As a result of its experiments. the
! Department OF Agriculture suggests
the following treatment: For cattle,
strychninc in doses of three twenti.
Cths TO four-twentieths of grain daily.
administered hypodermically. For
horses. Fowler's solution of arsenic in
half.ounce doses daily in the drinking
water or in the grain. This treatment
should be continued for at least a
month To correct the constipation
| which is almost universal in locoed an
imals. magnesium sulphate Epson
salD may be administered as n
drench in 2.ounce doses. EPSON salt
may also serve to some extent as an
antidote to the poison produced by
the weeds. Beneficial results have
also been obtaineo by giving horses
daily drench containing . ounces Of
EPSON salt with 10 drops dilute sui.
phuric acid. and by giving cattle tri-
| weekly 3 to ounces of EPSON salt
with proportional increase .in the
quantity OF diulte sulphuric acid.
AS the foregoing treatments are In
The experimental stage. the Bureau Of
| Animal Industry. Washington. D. c.,
would be glad to receive reports Of re-
suits from their use.