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How Many Nutrient Units Do I Have?
Fur Farm Operations

Author: OMAFRA Staff
Creation Date: 01 July 2003
Last Reviewed: 01 January 2006

If you own a fur farm operation, Ontario Regulation 267/03 under the Nutrient Management Act, 2002 applies to you if your operation generates 300 or more nutrient units (NU) annually. It also applies to you if your operation generates more than five (5) NU annually and you:

  • apply for a building permit* to build any structure that is used to house livestock or to store manure; or

  • construct an earthen manure storage.

If you own a fur farm operation and keep no other livestock on your farm, you can use the following chart to easily determine the nutrient units for your farm operation.

Determine Total Nutrient Units for Your Farm:
Type of Fur Farm Operation # of Animals NU Conversion Factor Divide # of Animals by NU Conversion Factor
Fox Breeding Females
Includes replacements, market animals and males		   25 animals/NU  
Mink Breeding Females
Includes replacements, market animals and males		   90 animals/NU  
Chinchilla Breeding Females
Includes replacements, market animals and males		   320 animals/NU  
 Total Nutrient Units on Farm
  

* O. Reg. 267/03 also applies to those operations that would require a building permit under the Building Code Act, 1992 but are exempt from having to obtain a permit under the application of clause 2.4.1.1(1) (b) of Ontario Regulation 403/97 (Building Code) made under that Act.


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