Dr. Alois (Al) F. Kertz

A. Experience and Ability


  • Nutrition, feeding, and management of dairy cattle from calf, heifer, nonlactating, and through lactating stages
  • Extensive experience in research and development of feed products and programs for all of these stages
  • On-farm consulting and training of on-farm consultants for 10 years throughout the United States
  • About 20 years of similar experience in countries outside the U.S., notably in Canada, Mexico, Latin America, Spain, Italy, Hungary, Czech Republic, Slovakia, South Korea, Brazil, China, Iran, and Russia in addition to technical support in other countries
  • Currently, in private consulting business in the U.S. and other countries with clientele in various companies, agencies, organizations, and publications, including as a reviewer for the 2001 National Research Council (www.nationalacademies.org/nrc) publication on Nutrient Requirements of Dairy Cattle, and columnist for both Feedstuffs (“The Weekly Newspaper for Agribusiness”) (www.feedstuffs.com) and Hoard’s Dairyman (www.hoards.com).
  • Recently, writing articles for The Progressive Dairy (www.progressivedairy.com)
  • Book Author:  Dairy Calf and Heifer Feeding and Management—Some Key Concepts and  PracticesAlois F. Kertz, Outskirts Press, July 31, 2019, 166 pages.  Amazon and Barnes & Noble availability. https://outskirtspress.com/dairycalfandheiferfeedingandmanagement
  • Veterinary Clinics of North America Food Animal Practice on Raising Commercial Dairy Calves. Co-Editors R. M. Thornsberry, A. F. Kertz, and James K Drackley, 2022. published by Elsevier.
  • Extensive legal experience in assessing claims, undergoing depositions, and as expert witness in 10 trials in federal, state and local levels in various states.

Professional Employment/Military


  • Executive Vice President, American Registry of Professional Animal Scientists (ARPAS), www.arpas.org
  • Founder and Principal, ANDHIL LLC, St. Louis, MO (2001-present)
  • Dairy Field Technical Service and Research, Milk Specialties Global (2010-2012)
  • International Director of Ruminant Nutrition, Agribrands International (formerly Ralston Purina International), St. Louis, MO (2000-2001)
  • Director of Dairy Applied Research, Nutritional Consulting Program, and Technical Services, Purina Mills Inc., St. Louis, MO (1991-2000)
  • Manager of Dairy and Ruminant Research, Purina Mills, St. Louis, MO (1975-1991)
  • Dairy Nutritionist, Ralston Purina Co, St. Louis, MO (1973-1975)
  • Food Supply Officer and Platoon Leader, U.S. Army Depot Operations, Sattahip, Thailand (1969-1970)
  • Nutrition Research Officer, U.S. Army Natick Laboratories, Natick MA (1968-1969)


  • B.S. 1967 Dairy Husbandry, University of Missouri-Columbia.
  • M.S. 1968 Dairy Cattle Nutrition, University of Missouri-Columbia.
    • Thesis: Effect of dietary protein intake on creatinine excretion and the creatinine-nitrogen ratio in bovine urine.
  • Distinguished Military Graduate 1967  2nd Lieutenant  via Army ROTC
  • Ph.D. 1973 Animal Nutrition, Cornell University.
    • Thesis: Some biochemical and cellular aspects of growth in cattle as influenced by breed, sex, level of intake, and stage of growth.


  • 42 scientific journal articles
  • Numerous popular press articles
  • Extensive Purina publications for training and technical reference
  • Numerous presentations to dairy producer groups within the U.S. and other countries
  • Click on Publication & Presentation List for detailed listing


  • American Dairy Science Association (www.adsa.org), past President
  • American Society of Animal Science (www.asas.org)
  • American Association for the Advancement of Science (www.aaas.org)
  • American Society for Nutrition (www.nutrition.org)
  • Dairy Calf and Heifer Association (www.calfandheifer.org)
  • American Registry of Professional Animal Scientists (PAS), President 2019-2020 (www.arpas.org), Charter Member and Diplomat of the American College of Animal Nutrition (DIPL ACAN).


Who’s Who in American Colleges and Universities, 1967

Purina Research Fellowship, 1967-68 University of Missouri

Liberty Hyde Bailey Fellowship 1970-1973, Cornell University

Army Commendation Medal–Meritorius Service, 1969-1970 Thailand

American Dairy Science Association: Nutrition Professionals, Inc. Applied Dairy Nutrition Award 2006

Initial Inductee of Agricultural Leadership Society in 2007—University of Missouri College of Agriculture, Food and Natural Resources Alumni Association

Missouri Dairy Hall of Honors, 2017 Meritorious Service Award

Citation of Merit 2018 from Mizzou Ag Alumni Association and the College of

Agriculture, Food and Natural Resources

Award of Honor 2018, American Dairy Science Association

Fellow 2018, American Dairy Science Association

Professional Contributions

A. American Dairy Science Association

Student Affiliate Division

3rd Vice President                  1966-67

President                                 1967-68

Outstanding Member             1968

Chapter Activities Judge        1972

Nominating Committee                      1974-75

Resolutions Committee                      1975-78

Chair                                       1976-77

Chair, Production Division     1977-78

Research Committee                          1995-1997

Chair                                       1997

ADSA Production Division

Secretary                                 1993-94

Vice Chair                               1994-95

Chair                                       1995-96

Annual Meeting Chair                        1996-97

Futures Committee                            1996-97

Representative to Food and Nutrition Board, National Research Council, 1980-86

MSD AGVET Dairy Management Research Award Committee, 1986-89

Chair, Annual meeting session on Calf Nutrition, 1985

Chair, Annual meeting session on Management, 1988

Feeding and Management Committee, 1988-91

Vice Chair                              1988-90

Chair                                      1990-91

Chaired Symposium on Nutritional Factors Affecting Animal Water and Waste Quality, 1990

Co-Chair, Borden Symposium, joint with Dairy Foods Division

American Cyanamid Research Award Committee, 1993

ADSA National Needs Dairy Committee, 1993-1995

Chair, Program Planning Committee, 1995


Young Industry Science Award Committee, 1993-1996

Outstanding Young Agribusiness Award Committee, 1993-97

Nominating Committee, 1994-95

Innovation in Dairy Research Award Committee, 1998-2001

International Dairy Production Award Selection Committee, 2000-2003

International Relations Committee, 2002-2005

ADSA Selection Committees

Nutrition Professionals, Inc Applied Dairy Nutrition Award, 2007-2010

Awards, 2007-2008

Fellows, 2007-2009

ADSA Centennial Planning and Budget Committee, 2001-2006

ADSA S-PAC (Searchable Proceedings Animal Conferences) Advisory Committee

Chair, 2005-2007

ADSA S-PAC Management Committee

Chair, 2007-


ADSA DISCOVER Conference Organizing Program Committees except for the 23rd

14th on May 18-21, 2008 at Nashville, IN

       Lipids for Dairy Cattle: Today’s issues, Tomorrow’s Challenges

15th on November 16-19, 2008 at Roanoke, VA

      Biology of the Calf: Birth to 4 Month

            Presentation on: Maturation of the digestive system into a functioning  ruminant    

23rd on May 29-June 1, 2012 at Itasca, IL

            Bovine Immunology: The Intersection of Innate and Acquired Immunity

Presentation on: Yeast culture / probiotics

25th on May 28-31, 2013 at Itasca, IL

            New Developments in Immunity, Nutrition, and Management of the Preruminant Calf

Presentation on: Does the Formulation and Physical Form of a Calf Starter Make any Difference to the Calf? 36th on May 28-31, 2019.  Lipids in Dairy Nutrition: From Feed to Milk Fat


ADSA Foundation Board of Trustees, 2001-2007

Chair, 2002-2006

ADSA Production Division Nominations Committee, Chair 2008

ADSA Board of Directors, 2006-2009            ADSA Internal Affairs Committee, 2008-2009

ADSA Membership Committee, Chair 2008-2009

ADSA Secretary-Treasurer, 2009-2012

ADSA Vice-President, 2013-2014

ADSA President, 2014-2015

ADSA Past President, 2015-2016

ADSA EAAP (European Federation of Animal Production) representative, 2014-2018

B. Journal of Dairy Science

Editorial Board, 2013-

C. FASS, Inc. (formerly Federation of Animal Science Societies)

Board Member, 2015-2018

President-elect 2015-2016

President 2016-2017

Past President 2017-2018


D. American Registry of Animal Scientists (ARPAS), 1987-

Editorial Board, The Prof. Animal Scientist, 1992-96, 2007-2013, 2017-2020

Associate Editor, The Prof. Animal Scientist, 1996-2000

Charter Member and Diplomat American College of Animal Nutrition (ACAN) 1995-

Secretary/Treasurer 2004-2008

President-Elect 2018-2019

President 2019-2020

Past-President 2020-2021

Executive Vice President, 2021-

E. National Research Council Nutrient Requirements of Dairy Cattle,

7th REVISED edition, 2001. Reviewer.

F. Feedstuffs (The Weekly Newspaper for Agribusiness) Columnist, Dairy Focus Issue,

Beginning September 10, 2001.

G.  Hoard’s Dairyman (The National Dairy Farm Magazine) Feeding Columnist, Beginning Fall 2001.

H. Hoard’s Dairyman en espanol, beginning 2005

I. The Progressive Dairy beginning 2019.

J.  St. Louis Agri-Business Club, 2001-

K.  USDA National Agricultural Research, Extension, Education, and Economics Advisory Board, 2003-        2006.

L.  Public Policy Committee of Missouri Catholic Conference 2004-2007, 2008-2011, Chair 2006-2007

M.  Associate Editor, co-organizer, and presenter: Proceedings of the 2nd International Symposium on Dairy Cow Nutrition and Milk Quality, 7 to 9 May 2011, Beijing, China.

N.  Associate Editor, co-organizer, and presenter; Proceedings of the 3rd International Symposium on Dairy Cow Nutrition and Milk Quality, 11 to 13 May 2013, Beijing, China.

O. Associate Editor, co-organizer, and presenter; Proceedings of the 4th International Symposium on Dairy Cow Nutrition and Milk Quality, 8 to 10 May 2015, Beijing, China

P. Associate Editor, co-organizer, and presenter; Proceedings of the 5th International Symposium on Dairy Cow Nutrition and Milk Quality, 5 to 7 May 2017, Beijing, China

Q. EAAP (European Federation of Animal Science)

ADSA representative 2014 to 2018

Individual professional member 2014 to 2018


English and some spoken Thai.