Section 243.05. Calculating animal units.

 

(1)   General. The total number of animal units at an operation shall be calculated using the methods in both subs. (2) and (3) . The department shall compare the totals under both of these methods and shall use the highest calculated total to determine the size of an animal feeding operation. An owner or operator of an animal feeding operation shall use form 3400-25A for calculating the number of animal units present at the operation.

(2)   Combined animal units. The number of animal units present at an operation shall be calculated by multiplying the number of animals for each animal type by the appropriate equivalency factor in Table 2A. The total number of animal units at the operation is the sum of the calculated animal unit numbers of all animal types present at the operation.

(3)   Individual animal units. The number of animal units present at an operation shall be calculated by multiplying the number of animals for each animal type by the appropriate equivalency factor in Table 2B. The total number of animal units at an operation is the highest calculated number of animal units for any individual animal type.

(4)   Other animal types. For animal types not listed in Table 2A, the department shall base equivalency to animal units on live animal weights, the characteristics of the manure, including nutrient content or pollutant concentration, or a combination of both. In cases based strictly on live weight, 1,000 pounds of live weight is equivalent to one animal unit. - See PDF for table - See PDF for table

History: CR 05-075 : cr. Register April 2007 No. 616 , eff. 7-1-07.

Note

In accordance with the definition in s. NR 243.03(4) , animals included in the total count may be housed at more than one site or location. Microsoft Windows NT 6.1.7601 Service Pack 1 Form 3400-25A can be obtained at regional offices of the department or the department's Bureau of Watershed Management, 101 S. Webster St., P.O. Box 7921, Madison, Wisconsin 53707. Microsoft Windows NT 6.1.7601 Service Pack 1 Under the combined animal unit calculation, an operation with 400 animal units of milking cows, 300 animal units of heifers and 200 animal units of swine would have a total of 1000 animal units present. Microsoft Windows NT 6.1.7601 Service Pack 1 Under the individual animal unit calculation, an operation with 400 animal units of milking cows, 300 animal units of heifers and 200 animal units of swine would have 400 animal units present. Microsoft Windows NT 6.1.7601 Service Pack 1