| Key
Elements of
This Lesson
|
|
Answer
Key
| Table
1 - Forage Value |
| |
Forage
available |
Grazing
Merit |
Palatable
Forage |
| Plant
Species |
lbs/ac. |
Cattle |
Elk |
Cattle |
Elk |
Bluebunch
wheatgrass |
350 |
Good |
Good |
350 |
350 |
Western
wheatgrass |
300 |
Good |
Godd |
300 |
300 |
Needle
and
Thread grass |
80 |
Good |
Fair |
80 |
40 |
Western
yarrow |
90 |
Poor |
Fair |
0 |
45 |
| Lupine |
20 |
Fair |
Good |
10 |
20 |
Slimflower
scurfpea |
20 |
Poor |
Poor |
0 |
0 |
| Snoberry |
70 |
Poor |
Fair |
0 |
35 |
| Willow |
100 |
Good |
Good |
100 |
100 |
| Rough
fescue |
400 |
Good |
Good |
400 |
400 |
| Threadleaf
sedge |
60 |
Good |
Good |
60 |
60 |
Totals
for
each column |
1490 |
- |
- |
1300 |
1350 |
|
| |
| Table
2 - Unadjusted Stocking Rates (ignoring spatial
variables) |
| |
Single
Species: Cattle
SRu |
Single
Species: Elk
SRu |
Total
(Cattle SRu + Elk SRu) |
| #
of Cattle |
104 |
0 |
104 |
| #
of Elk |
0 |
154 |
154 |
|
1300
x0.5x1000 |
1350
x0.5x1000 |
104+0 |
25.6x244 |
17.9x244 |
0+154 |
|
| 13000
x0.5x1000 |
|
| 25.6x244 |
|
1300
is from Table 1
.5
is 50% palatable value
1000
is number of acres
244
is number of days from Apr. 1 to Nov. 30
| 17.9
lbs./day = |
546
lbs. per month x 8 months |
| |
244
days |
|
|
|
1350
x0.5x1000 |
|
|
17.9x244 |
|
|
1350 is from Table 1
.5 is 50% palatable value
1000 is number of acres
244 is number of days from Apr. 1 to Nov. 30
| 25.6
lbs./day = |
780
lbs. per month x 8 months |
| |
244
days |
|
|
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