20 
BULLETIN 1245, U. S. DEPARTMENT OF AGRICULTURE. 
Fig. 15.- 
-A steer badly locoed by the white loco {Oxy- 
tropis lamberti). 
poisoned by the purple loco. These pictures show very well the lack 
of muscular coordination which is one of the striking symptoms in 
locoed animals. 
The losses from loco plants have been enormous. Some owners 
have gone into bankruptcy, and in many cases it has been found 
impossible to run horses or cattle upon certain ranges. 
Tbeatment of Animals 
Poisoned by Loco. 
It does not always 
follow that animals eat 
the plants in any very 
large quantity, for even 
in a place like that 
shown in Plate XVI 
cattle may be pastured 
for a long time without 
any of them becoming 
affected. The most im- 
portant point in regard 
to the handling of do- 
mestic animals u p o n 
such a loco range, as 
will be emphasized later in this bulletin, is to see that they have an 
abundance of good feed. T\ Tien the range contains in addition to 
the loco an abundance of grasses the number of locoed animals is 
very much reduced. 
When the first symptoms of loco poisoning are observed, it is 
essential that the animals be removed to a place where they can 
not get the plants. Horses are very apt, after becoming slightly 
locoed, to continue eat- 
ing the plant until they 
are absolutely worth- 
less. It is always un- 
safe to turn a partly 
locoed horse upon a 
ground that is covered 
with the plant. The 
same is true in regard 
to cattle, only to a lesser 
degree. As soon as 
symptoms of loco poi- 
soning are seen in cat- 
tle they should be re- 
moved from the open 
range and, if possible 
put upon alfalfa pasture 
the alfalfa has a tendenc 
L6. 
-A locoed horse in Arizona, 
typical. 
rii.' attitude is 
All locoed animals are constipated, and 
to relieve this condition. 
Generally speaking, if entile are moved from the open range in 
time and fed upon alfalfa, the greater number of them will recover. 
After recovery it is well to put them upon the market as soon as 
possible, for if turned out upon the range again there is always a 
