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conservation grade

British  

adjective

  1. relating to food produced using traditional methods where possible, and following strict specifications regarding animal feeds and welfare, the use of chemical fertilizers, wildlife conservation, and land management

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The wildlife charity is working with sustainable farming organisation Conservation Grade and the Pensthorpe Conservation Trust in Norfolk.

From BBC