§ 90.11 DEFINING ANIMAL UNITS.
   The typical statute or regulation defining animal units uses a conversion factor based on some standard to which various animal types are compared numerically. For legislation dealing with animal feeding operations, the operative is one beef cow.
Type of Livestock
Animal Units
Minimal Size Not Considered a Nuisance
Type of Livestock
Animal Units
Minimal Size Not Considered a Nuisance
Breeding mink (for setback purposes)
0.015
200
(for distance purposes)
0.05
200
Laying hens; other poultry (housed)
0.006
1,000
Llamas
0.6
33.3
Mature dairy cattle
1.4
14
Mature horses
1.4
14
Other poultry (unhoused)
0.2
100
Pheasants
0.2
100
Sheep
0.4
50
Slaughter/feed cattle/cow calf
1.0
20
Swine over 40 lbs.
1.0
15
Young cattle
1 – 300 lbs.
0.2
100
300 – 500 lbs.
0.4
50
500 – 700 lbs.
0.6
33
700 – 900 lbs.
0.8
25
900 – 1,000 lbs.
1.0
20
Young horses
0.6
33
 
(Ord. 2002-2, passed 8-26-2002; Ord. 2003-3, passed 6-9-2003)