Guidelines for Establishment and Operation of Cattle Feedlots in ...

96 week 7 cattle at average 417 kg = 39,984 kg
96 week 8 cattle at average 428 kg = 41,059 kg
96 week 9 cattle at average 439 kg = 42,134 kg
96 finished cattle at average 450 kg = 43,210 kg.
The total weight of cattle on feed is 423,954 kg for the 1071 head. The average weight is 396
kg, which is equivalent to 0.74 SCU. The SCU stocking rate for the feedlot is 1071 head x 0.74
= 793 SCU.
9.3.2 Composite Site Factor - S
The value of S to apply in equations 1 or 2 depends on site specific information pertaining to the
proposed stocking density, population centres or homes and intervening terrain factors.
Table 4 – Value of S1
Stocking
Density
(m 2 /standard
cattle unit)
Feedlot Class
1 2 3 & 4
10 95 128 158
11 92 123 152
12 88 118 146
13 85 113 140
14 82 108 133
15 78 103 127
16 74 98 121
17 70 93 115
18 67 88 109
19 62 83 102
20 & over 58 78 96
Table 6 – Value of S3
Topography Value
High relief at > 10%
from site
0.7
Low relief at > 2%
from site
1.2
Valley drainage zone 2.0
Flat 1.0
Composite Site Factor Tables.
Table 5 – Value of S2
Receptor type Value
Large towns >2000 persons 1.6
Towns >100 persons 1.2
Small towns >20 persons 1.0
Rural Residential (intensive) 1.0
Rural residential (extensive) 0.7
Rural farm residence 0.3
Rural school 0.3
Rural Church/Community 0.2
Centre
Public area (minimum value) 0.05
Table 7 – Value of S4
Intermediate Landscape Value
Few trees, long grass, crops 1.00
Undulating hills 0.93
Level wooded landscape 0.85
Heavy Timber 0.77
Significant Hills and Valleys 0.68
Note: Manure stockpile areas should be regarded as feedlot pens for the purpose of applying separation
distances.
For large feedlots with complex topographic or meteorological features or other significant odour
Guidelines for Establishment and Operation of Cattle Feedlots in South Australia, 2 nd Edition 28