4 BULLETIN 1240, U. S. DEPARTMENT OF AGRICULTURE. 
Table 1. — Summary of feeding experiments with Zygadenus venenosus. 
Animal. 
Date of 
Method 
oi 
feeding. 
Part of plant 
fed. 
Weight 
of 
plant. 
Results. 
Designation. 
Weight. 
feeding. 
Remarks. 
Sheep— Con. 
No. 611.. 
No. 627.. 
No. 653.. 
Pounds. 
157 
117.5 
91.75 
126.75 
111. 25 
116. 75 
114.5 
116 
112.5 
43 
41 
43 
1921. 
Sept. 15. 
Sept. 16.... 
do 
Sept. 19.... 
do 
Sept. 21.... 
do 
do 
do 
Sept. 24.... 
Sept. 26.... 
do 
Balling 
gun. 
...do 
...do 
...do 
...do 
...do 
...do 
...do 
...do 
In bran. 
...do 
...do 
Leaves, stems, 
flowers, and 
some bulbs. 
Flowers 
Stems 
Pounds. 
0.3 
. 5 
.5 
.75 
.75 
.5 
.5 
.5 
. 5 
.117 
.067 
Not sick.... 
do 
do 
Symptoms. 
do 
do 
Not sick 
Svmptoms. 
Sick 
Vomited . . . 
do 
do 
Dry plant fed; esti- 
mated as green. 
Do. 
Do. 
No.613.. 
No. 614.. 
Flowers 
Do. 
Do. 
No. 582.. 
No. 603.. 
No. 620.. 
Leaves 
Flowers 
Stems 
Do. 
Do. 
Do. 
No. 642.. 
Bulbs 
Do. 
Pigs: 
No. 23... 
No.22... 
No. 23... 
do 
do 
do 
Dry plant fed; esti- 
mated as green. 
Pig ate very little 
of the mixture. 
Do. 
Do. 
A TYPICAL SHEEP CASE. 
Sheep 617 was a 3-earling ewe, weighing at the time of this experi- 
ment 121 pounds. It may be considered as a typical case of a "very 
sick" animal. 
On September 5, between 2.02 and 2.16 p. m., she was given, by 
the balling gun, 1.7 pounds per 100 pounds of animal of leaves, 
stems, flowers, and some bulbs of Zygadenus venenosus. The tem- 
perature of the animal just before the feeding was 102.8° F. Immedi- 
ately after the feeding a little of the material was vomited, the 
nausea perhaps being caused by mechanical irritation. The animal 
showed no further symptoms until 6.48 p. m., when she was noticed 
to be regurgitating. At 9 p. m. there was not only regurgitation 
but salivation. The temperature at this time was 101.2° F., the 
pulse 60. 
At 7.47 a. m. September 6 the sheep was found lying down, and 
wiien compelled to get up, staggered as she walked and soon had to 
lie down. The temperature at this time was 101.1° F. and the pulse 
120. At 8.59 a. m. the pulse was 116 and irregular, and the tempera- 
ture was 100.4° F. The animal was still weak and grated her teeth. 
These symptoms continued during the forenoon, the animal being 
down most of the time, but still able to stand. At 3.33 p. m. she 
was strong enough to walk out of the corral to obtain water. During 
the rest of the afternoon and evening there was little change, the 
animal lying down most of the time and sometimes groaning with 
the expirations. 
At 9.01 a. m., September 7 the condition of the animal was much 
the same as during the preceding day, but she was perhaps somewhat 
weaker. This condition continued with little change during the 
rest of the day. The animal was able to move about some, but was 
extremely weak. At 5.13 p. m. the temperature was 99.6° F. ; 
respiration 80. This was the lowest temperature that was noticed 
during the sickness of the animal. 
At 7.03 a. m. September 8 the temperature was 101.1° F. ; pulse 
76. strong and regular. The sheeD was standing and grating her 
