Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
University of California
Division of Agriculture and Natural Resources

Jennifer Heguy

Photo of Jennifer Heguy
Farm Advisor
University of California Cooperative Extension
3800 Cornucopia Way
Suite A
Modesto, CA 95358
(209) 525-6800
jmheguy@ucdavis.edu Create VCard

Also in:
San Joaquin County
Merced County


M.S. Animal Science, University of California, Davis. 2006


Dairy - Merced, Stanislaus & San Joaquin Counties

Areas of Expertise (click to see all ANR academics with this expertise)


Peer Reviewed

  • Miller, C.M.; Fadel, J.G.; Heguy, J.M.; Karle, B.M.; Price, P.L.; Meyer, D. (2018). Optimizing accuracy of protocols for measuring dry matter and nutrient yield of forage crops. Science of the Total Environment. 624, 180-188.
  • Heguy, J.M., D. Meyer, and N. Silva-del-Rio. 2016. A survey of silage management practices on California dairies. Journal of Dairy Science, 99:1649-1654

  • Robinson, P.R., N. Swanepoel., J.M. Heguy, P.L. Price, D. Meyer. 2016. 'Shrink' losses in comercially sized corn piles: quantifying total losses and where they occur. Science of the Total Environment, 542, Part A: 530-539.

  • Robinson, P.R., N. Swanepoel., J.M. Heguy, P.L. Price, D. Meyer. 2016. 'Shrink' losses, and where they occur, in commerically sized silage piles constructued from immature and mature cereal crops.  Science of the Total Environment, 559: 45-52.

  • Cassinerio, C.A., J.G. Fadel, J.Asmus, J.M. Heguy, S.J. Taylor, and E.J. DePeters. 2015. Tomato seeds as a novel byproduct feed for lactating dairy cows. Journal of Dairy Science, 98:4811-4828.

  • Heguy, J.M., C.A. Cassinerio, J.G. Fadel, J. Asmus, S.J. Taylor and E.J. DePeters. 2015. Nutrient composition and total tract apparent digestibility of whole tomato seeds by sheetp. Professional Animal Scientist, 31: 462-466.

  • Meyer, D.M., P.H. Robinson, P.L. Price, and J.M. Heguy. 2015. Determination of silage face surface area on commercial California dairy farms. Grass and Forage Science. doi: 10.1111/gfs.12160

Non-Peer Reviewed

  • Heguy, J.M. and N. Silva-del-Rio. 2015. Snapshot of California's Corn Silage Practices. Progressive Dairyman Magazine, February 7, 2015.

  • Heguy, J.M. and E.J. DePeters. 2015. The importance of dry matter: tips for feeders and dairy producers. California Dairy Newsletter, April 2015; California Dairy Magazine, Volume 24, No. 5 (May 2015); Merced County Farm News, May 15, 2015; Stanislaus County Farm News, Dairy Times Edition, June 2015; Dairy Herd Management Magazine (Daily E-version), July 27, 2015; Drovers Cattle Network (online content), July 27, 2015; DairyBusiness West Magazine, August 2015; Progressive Dairyman Magazine, October 1, 2015.

  • Robinson, P.H., N. Swanepoel, J.M. Heguy, and D. Meyer. 2015. Real 'shrink' in corn silage piles. Progressive Dairyman Magazine, May 7, 2015.

  • DePeters, E.J., B. Pushcner, J. Asmus, and J.M. Heguy. 2015. Cull onions: A byproduct feedstuff for cattle. Progressive Dairyman Magazine, June 30, 2015.

  • Heguy, J.M. and N. Silva-del-Rio. 2015. Ensiling practices of corn on California dairies. J. Dairy Sci. Vol. 98, Suppl. 2, page 279.

  • Heguy, J.M., D. Meyer, N. Silva-del-Rio.  2014.  Corn Silage Management Practices on California Dairies. American Dairy Science Association Annual Meeting, Kansas City, MO, July 20-24.

  • Heguy, J.M.   2014. How do I adjust a silage price for DM? Progressive Dairyman Magazine, September 7, 2014. 
  • Depeters, E.J. and J.M. Heguy. 2014. The ABC's of Forage Analysis - What is Energy?   California Dairy Newsletter, July 2014; California Dairy Magazine, November 2014. 
  • Heguy, J.M., DePeters, E.J. and Asmus, J. 2012. Back to Basics: The ABC's of Forage Analyses. California Dairy Newsletter, November 2012; San Joaquin County Field Notes, November 2012 ; DairyHerd Network (online content), November 21, 2012; California Dairy Magazine, November 2012; The Stanislaus Farm News, December 7, 2012; milkproduction.com (online content), 3/22/2013.
  • Silva-del-Rio, N. and Heguy, J.M. 2013. Key harvest practices to reduce corn silage losses. Western Alfalfa and Forage Symposium, Reno, NV, 11-13 December, 2013. UC Cooperative Extension, Plant Sciences Department, University of California, Davis, CA 95616.
  • Depeters, E.J. and Heguy, J.M. 2013. The ABC's of Forage Analysis - Fiber & Digestibility. California Dairy Newsletter, March 2013; Dairy Herd Network Daily (email blast to subscribers), 3/18/2013; The Bullvine (online content), 3/19/2013; Dairy Herd Network, Topic Forage (email blast), 3/20/2013; milkproduction.com (online content), 3/20/2013; Progressive Dairyman, July 21, 2013.
  • Depeters, E.J. and Heguy, J.M. 2013. The ABC's of Forage Analysis: What are NSC and NFC? California Dairy Newseltter, April 2013; Dairy Herd Network (online content), 4/24/2013; milkproduction.com (online content), 4/18/2013; Field Notes Newsletter, May 2013.
  • Heguy, J. M. (2010). Overview of Silage Management Practices in California. 2010 California Alfalfa and Forage symposium and Corn/Cereal Silage Conference. Visalia, CA. December 1-2, 2010.

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