Ingredient Definitions Committee

Welcome to the ingredient definitions committee page. The actual definitions are published annually in the AAFCO Official Publication (OP). This book is a primary source of revenue to pay for the costs of running the definition process. Your purchase of the OP is appreciated. We understand it may be a burden to purchase an OP to get one definition and in those cases recommend you contact your state department of agriculture or look for the AAFCO Official Publication at your local Library. (click here to find state contacts).


These definitions apply to all animal feeds. Many pet food manufacturers have tighter specifications than these definitions. We recommend talking with your pet food company about the ingredients and sources they use.

Contact Information:

If you have questions about how ingredients are defined by AAFCO, you may contact the Chair of the Ingredient Definitions Committee:

Richard TenEyck
OR Dept. of Ag.
Animal Health & ID Div.
635 Capitol Street NE
Salem, OR  97301-2532
Telephone: (503) 986-4691
Fax: (503) 986-4734
E-mail: rteneyck@oda.state.or.us

Powerpoint Presentations

Committee Members

Richard Ten Eyck, Chair
Salem, OR

Aaron Elam, Vice Chair
Oklahoma City, OK

Mark LeBlanc, Board Liaison
Baton Rouge, LA

Mika Alewynse (FDA)
Rockville, MD

Erin Bubb
Harrisburg, PA

Donald Delorme
Richmond, VA

Jennifer Godwin
Raleigh, NC

Steve Gramlich
Lincoln, NE

Kristen Green
Lexington, KY

Brett Groves
West Lafayette, IN

Alan Harrison
Lexington, KY

Roger Hoestenbach
College Station, TX

April Hunt
Lansing, MI

Shannon Jordre (FDA)
Rockville, MD

Jeri Kahana
Honolulu, HI

Jennifer Kormos
Ottawa, CN

Anna Lamberti
Ottawa, CN

Becky Muir (FDA)
Rockville, MD

Committee Advisors

David Dzanis
American College of Veterinary Nutrition

Leah Wilkinson
American Feed Industry Association

Jon Nelson
American Feed Industry Association/Alt.

David Dzanis
American Pet Products Association

Ed Rod
American Pet Products Association/Alt.

Susan Thixton
Association for Truth in Pet Food

Lonnie Boyd
Association for Truth in Pet Food/Alt.

Vincent Sewalt
Enzyme Technical Association

Kristi Smedley
Humic Product Trade Association

Jonathan Goodson
National Grain and Feed Association

Jan Campbell
National Grain and Feed Association/Alt.

David Ailor
National Oilseed Processors Association

David Meeker
National Renderers Association

Steve Traylor
Pet Food Institute

Jill Franks
Pet Food Institute/Alt.

Jean Hofve
Pet Welfare Alliance

Mollie Morrissette
Pet Welfare Alliance/Alt.

Charles Starkey
US Poultry & Egg Association

AAFCO Headquarters Office
1800 S. Oak Street, Suite 100, Champaign, IL 61820-6974
Phone: 217-356-4221 --- Fax: 217-398-4119
Email: aafco@aafco.org
Copyright 2014 by The Association of American Feed Control Officials