Jennifer Heguy
Title: Farm Advisor
Specialty: Dairy - Merced, Stanislaus & San Joaquin Counties
Address:
University of California Cooperative Extension
3800 Cornucopia Way
Suite A
Modesto, CA 95358
Phone: (209) 525-6800
Fax: (209) 525-6840
Email: jmheguy@ucdavis.edu
Jennifer Heguy is a native of California’s San Joaquin Valley. She received her B.S. in Animal Science, with an emphasis in Livestock and Dairy, at the University of California, Davis. In 2006, she received her M.S. degree at UC Davis, with a focus in dairy cattle nutrition. Jennifer serves as the Dairy Farm Advisor in Merced, Stanislaus and San Joaquin Counties where milk is a major agricultural commodity. The goal of Jennifer's research and extension program is to contribute to the continued success of the dairy industry in the Northern San Joaquin Valley, and throughout California.
CLICK HERE to visit the Golden State Dairy Management website!
By-product Research
ABCs of Forage Analyses
Corn Silage Management
Corn Silage Management Practices on California Dairies (Presentation, PDF), by Noelia Silva-del-Rio and Jennifer Heguy (2014) • Current silage management practices on California’s San Joaquin Valley dairies are described. Opportunities to optimize silage management are also presented and discussed.
Silage Management Practices on California Dairies (Poster Presentation, PDF), by Noelia Silva-del-Rio, Jennifer Heguy, and Alfonso Lago • Corn silage is a common ingredient of California dairy rations. In well managed corn silage, dry matter losses can be as low as 8 - 10%. However, when poor management practices are implemented dry matter losses can be as high as 20 - 40%.
Overview of Silage Management in California (Symposium Paper, PDF), by Jennifer Heguy (2010) • Current silage management practices on California dairies are described and discussed. Due to environmental pressures, Central Valley dairies are subject to stringent water and air regulations. Discussion of silage management in California is not complete without this regulatory component.
Silage Face Management (PDF), by Noelia Silva-del-Rio (2010) • The goal of silage face management is to minimize silage exposure to oxygen. This article discusses the importance of good face management practices to minimize dry matter losses and describes current silage management practices in California dairies based on a UCCE survey.
Dry Matter
Correcting for Dry Matter, Presentation (PDF), by Jennifer Heguy • Correcting for Dry Matter (DM) at Harvest; Determining Whole Field DM: Challenges and Proposed Solutions; Other monitoring: Length of cut, Kernel processing.
Correcting for Dry Matter, Article (PDF), by Jennifer Heguy • It’s important to remember that as corn matures (DM increases) and starch content increases, fiber quality declines. This trade-off between starch content and digestibility of forage will affect how the silage is incorporated into rations.
General Information
Snapshot of California’s Corn Silage Practices (PDF), by Jennifer Heguy and Noelia Silva Del Rio for Progressive Dairyman (2015) • Corn silage is a valuable commodity. Dairy producers should invest time and effort to coordinate growers, pest control advisers, custom harvesters and nutritionists to work toward the same goal: maximizing quality and quantity of the crop harvested and ensiled.
Corn Silage Audits: Lessons from Observing Harvest (PDF), by Jennifer Heguy (2014) • Dairies selected to participate in this study had previously taken part in a corn silage management survey in 2013; Corn silage harvest on 20 San Joaquin Valley dairies were evaluated in the summer of 2014.
2014 Corn Silage Audit (PDF), by Jennifer Heguy and Noelia Silva Del Rio (2014) • In summer 2014, we visited twenty San Joaquin Valley dairies during corn silage harvest and sampled and composited five, consecutive truckloads of corn silage for nutrient analysis.
Project Results
California Dairy Newsletter
| Issue | Articles | Type | Date Added |
|---|---|---|---|
| Volume 16, Issue 3 September 2024 | In this issue:
| 9/26/24 | |
| Volume 16, Issue 2 July 2024 | In this issue:
| 7/31/24 | |
| Volume 16, Issue 1 February 2024 | In this issue:
| 2/5/24 | |
| Special Edition (English/Spanish) - December 2023 | In this issue: Horn removal options………………….2 | 12/26/23 | |
| Volume 15, Issue 3, September 2023 | In this issue:
| 9/8/23 | |
| Volume 15, Issue 2, June 2023 | In this issue:
| 6/1/23 | |
| Volume 15, Issue 1, April 2023 | In this issue:
| 4/5/23 | |
| Volume 14, Issue 4, December 2022 | In this issue:
| 12/9/22 | |
| Volume 14, Issue 3, August 2022 | In this issue:
| 7/26/22 | |
| Volume 14, Issue 2, May 2022 | In this issue:
| 5/20/22 | |
| Volume 14, Issue 1, March 2022 | In this issue:
| 3/4/22 | |
| Volume 13, Issue 4, November 2021 | CLICK HERE to view the November 2021 issue of the Golden State Dairy Newsletter!!! In this issue:
| 11/1/21 | |
| AMMP Webinar - October 7th from 4-4:30p - Registration is required! | How to Use AAMP Funds to Improve Manure Handling and Reduce Methane Emissions!REGISTRATION IS REQUIRED: CLICK HERE! • Hear from a consultant and producer who applied for and implemented innovative manure handling technologies. *Producer registration is FREE, $10 for others | 10/1/21 | |
| AMMP Webinar - October 7th from 4-4:30p - Registration is required! | How to Use AAMP Funds to Improve Manure Handling and Reduce Methane Emissions!REGISTRATION IS REQUIRED: CLICK HERE! • Hear from a consultant and producer who applied for and implemented innovative manure handling technologies. | 10/1/21 | |
| Volume 13, Issue 3, August 2021 | CLICK HERE to view the August 2021 issue of the Golden State Dairy Newsletter!!! In this issue:
| 8/18/21 | |
| Volume 13, Special Drought Edition, July 2021 | CLICK HERE to view the Special Drought Edition July 2021 issue of the Golden State Dairy Newsletter!!! In this issue:
| 7/16/21 | |
| Volume 13, Issue 2, May 2021 |
CLICK HERE to view the May 2021 issue of the Golden State Dairy Newsletter!!! In this issue:
| 5/18/21 | |
| Volume 13, Issue 1, March 2021 |
CLICK HERE to view the March 2021 issue of the Golden State Dairy Newsletter!!! In this issue:
| 3/1/21 | |
| Volume 12, Issue 4, November 2020 | In this issue:
| 11/23/20 | |
| Volume 12, Issue 3, August 2020 | In this issue:
| 9/1/20 | |
| Volume 12, Issue 2, May 2020 | In this issue...
| 5/18/20 | |
| COVID-19 Notification | Dear Stanislaus County community: As you all know, national, state, and local agencies have been implementing various measures to reduce the rate and risk of community spread of COVID-19. We wanted to update you on protective measures being taken by UC ANR, including this office. All UC Agriculture and Natural Resources county offices, research and extension centers and statewide programs are implementing telecommute protocols. As of Friday, March 20, all UC ANR employees have been working remotely. This includes our Farm Advisors who work closely with growers and other agriculture clientele, UC Master Gardeners, the Nutrition, Food and Consumer Science program, and 4-H. Being mindful of official guidance concerning social distancing, many Cooperative Extension functions, events, activities, meetings, etc. have been cancelled through the end of April. This directive also includes all volunteer-led youth or adult programming, meetings, or gatherings. During this telecommute status, we want to emphasize that we are still working and available to assist. Call our number at 525-6800 and we will direct you to the appropriate person. Critical research projects are being maintained and program delivery is taking place online. There is no impact on your ability to connect with us by email or phone. We will be monitoring COVID-19 developments closely and will continue to communicate any changes to our operations. If you have any questions or issues regarding potentially impacted meetings, events, research, programs, etc., please check our website at cestanislaus.ucanr.edu or drop us an email. We are here and available to assist you during this uncertain period. | 3/24/20 | |
| Golden State Dairy Management Conference Sweet Heart Deal Ending Soon! | Good afternoon: There is still time to get the Sweet Heart Deal ($50 per person) for the Golden State Dairy Management Conference. To register for the Golden State Dairy Management Conference, please follow this link: http://ucanr.edu/gsdmregister To view the agenda, please follow this link: http://ucanr.edu/gsdmagenda
After tomorrow (2/28/2020), the price of the conference registration price will be $75.
We hope to see you there! | 2/27/20 | |
| Golden State Dairy Management Conference | March 4, 2020 Harvest Hall California research to address California dairy needs. California topics for California dairies.
Continuing Education:
| 2/20/20 | |
| Volume 12, Issue 1 February 2020 | In this issue:
| 2/5/20 | |
| Volume 11, Issue 4, November 2019 |
| 11/25/19 | |
| Volume 11, Issue 3, August 2019 |
| 8/30/19 | |
| Volume 11, Issue 2, May 2019 |
| 5/14/19 | |
| Volume 11, Issue 1, February 2019 | In this Issue…
| 2/14/19 | |
| Volume 10, Issue 4 December 2018 | 1/10/19 | ||
| Volume 10, Issue 3 September 2018 | In this Issue…
| 9/10/18 | |
| Volume 10, Issue 2 May 2018 | In this Issue…
| 5/21/18 | |
| Volume 10, Issue 1 February 2018 | In this Issue…
| 2/23/18 | |
| Golden State Dairy Management Conference Brochure | In this issue...
| 2/2/18 | |
| November 2017 | In this issue...
| 11/3/17 | |
| July Newsletter | In this issue...
| 8/7/17 | |
| April 2017 | In this issue...
| 4/26/17 | |
| Sorghum Silage Meeting | In this issue... Two informative meetings coming up: March 7, 2017 - Madera, CA & March 9, Tulare, CA | 2/10/17 | |
| January 2017 | In this issue...
| 1/30/17 | |
| October 2016 | In this issue...
| 11/18/16 | |
| August 2016 | In this issue...
| 8/12/16 | |
| April 2016 | In this issue...
| 4/25/16 | |
| January 2016 | In this issue...
| 1/20/16 | |
| 2016 Golden State Management Conference | In this issue...
| 1/6/16 | |
| Special Edition December 2015 | In this issue...
| 12/11/15 | |
| October 2015 | In this issue...
| 10/16/15 | |
| July 2015 | In this Issue… Antibiotics on Dairies Corn Silage Processing Scores of CA Silage CDQAP Certification & Fee Reduction Sorghum Tips N. Peterson Retirement | 8/11/15 | |
| UCCE Silage Day |
UCCE Silage Day July 21, 2015 Harvest Hall, Stanislaus County Ag Center 3800 Cornucopia Way, Modesto, CA | 6/19/15 | |
| April 2015 |
| 4/15/15 | |
| January 2015 |
| 1/26/15 | |
| November 2014 |
| 11/5/14 | |
| July 2014 |
| 7/30/14 | |
| UCCE Silage Day, Tuesday, July 8, 2014 | 6/16/14 | ||
| April 2014 |
| 5/13/14 | |
| January 2014 |
Heat Stress Hoof Health Management Workshop
| 1/16/14 | |
| November 2013 |
| 11/7/13 | |
| August 2013 |
| 8/28/13 | |
| Silage Day 2013 | 7/9/13 | ||
| April 2013 |
| 4/17/13 | |
| March 2013 |
| 3/6/13 | |
| DairyNews Spanish Edition | This is the annual Spanish Edition of the California Dairy Newsletter. We've taken select articles from previous issues and translated them into Spanish in hopes that you will share the newsletter with your Spanish-speaking employees. Articles are included in both English and Spanish.
| 1/25/13 | |
| November 2012 | This is a correction to the previously e-mailed Dairy Newsletter. The link has been repaired and the newsletter is now accessible. We apologize for the inconvenience. In this issue:
| 11/16/12 | |
| August Dairy News | * Dairies in the news
| 8/15/12 | |
| UCCE Silage Day |
**This is a correction to the previous email. Silage samples will be analyzed for DM only.** Silage Day will be held at the Stanislaus County Ag Center, Harvest Hall in Modesto, CA on Thursday, August 23, 2012. Lots of helpful information regarding quality, value, production & animal health. Bring in your silage samples for a FREE DM analysis using NIR technology!
| 8/2/12 | |
| May 2012 | * Motivating employees | 5/11/12 | |
| Dairy Management Seminar - Registration Date Extended | Registration extended for the Modesto Location! Please register by Tuesday, March 20th to guarantee handouts and lunch. Please click on the link below for details: | 3/12/12 | |
| February 2012 | In this issue: | 2/27/12 | |
| Dairy News Spanish Edition, December, 2011 | The purpose of the Spanish edition is to take select articles from past issues and translate them into Spanish. We hope that you will share the information with your Spanish-speaking employees. | 12/16/11 | |
| November 2011 | In this issue: | 11/8/11 | |
| September 2011 | 9/9/11 | ||
| June 2011 | 7/12/11 | ||
| February 2011 | *To Our Readers *Silage Face Management *Milk Quality *WDR Reminders *Protected Amino Acids *Nutrient Efficiency | 2/19/08 | |
| 2010 Spanish News | Highlights of this year's Dairy News written in Spanish to help inform and update the Spanish speaking worker. | 12/23/10 | |
| November 2010 | • The EU Challenge – 1 • Milking Procedure – 3 • Milk sampling – 4 • Irrigation – 5 • Update SJVAPCD – 7 • WDR Reminders – 8 • Announcements – 9 | 11/19/10 | |
| August 2010 | *Heat Stress in Cattle *Timing Corn Harvest *Sampling Corn at Harvest *Milk Quality *Meet Dr. Rossow *Fly Management *WDR Reminders *Reproductive Short Course | 8/6/10 | |
| May 2010 | *Carbon Footprints *Feeding for Animal Requirements *Training Videos *Milk Urea Nitrogen *When the Media Calls *Incinerators in CA? *Increasing Efficiency | 5/17/10 | |
| Dairy Business Education Forum | Hedging and Risk Management in the Dairy Industry | 2/22/10 | |
| January 2010 | •Dairy Wage Survey •Overfeeding Nutrients •Retained Placenta •Water Use by Cows •Crop Irrigation •Animal Welfare •Forage Seminar •Herdsman Course •Dairy Business Education Meeting •North Valley Dairy Day | 1/27/10 | |
| December 2009-Spanish Edition | Highlights of 2009 in Spanish | 12/8/09 | |
| November 2009 | * Language of Carbon Footprints * Employee Giftedness * Residue Violations * Johne's Disease * Tail Docking Update * UC Davis News * Nutrient Management * CDQAP Updates * Mycotoxins * Announcements | 11/3/09 | |
| July 2009 | California Dairy Newsletter *Dairy Production Today *High LPC's? *Purchasing Forage? *Mineral Content in Feedstuffs *Know the Signs of Depression *Increase Cow Comfort *Concealing Animal Mortalities *Feeding Calves *Managing Irrigations *Reproductive Short Course *WDR Sampling | 7/16/09 | |
| May 2009 | •Heat Stress Feeding Pg. 1 •Toxic Weeds Pg. 2 •Milk + Milk Replacer Powder? Pg. 2 •Culling Considerations Pg. 3 •Tail Docking Survey Pg. 3 •Tail Docking Practices Pg. 4 •UC Davis Teaching Prize Pg. 4 •Bulk Tank Milk Quality Pg. 5 •Educating Consumers Pg. 6 •Systems Management Pg. 6 •Feeding Gin Trash? Pg. 7 •Dairy Facility Options Pg. 8 | 5/11/09 | |
| January 2009 | *Proposition 2 and Dairies *Ruminant Feed Ban *Feed Conversion Efficiency *WDR Deliverables, July 2009 *Tricolored Blackbirds *New Faculty at UC Davis *Pasteruized colostrum *Dairy Beef Quality Assurance *Top Notch Dairy Practices *Nutrient Tracking on Your Fields *Dairy Herdsman Shortcourse *Regional Water Quality Control Board Inspections | 1/23/09 | |
| August 2008 | *Can You Afford to Feed Your Heifers? *Euthanasia Techniques Workshop *WDR News from California Dairy Quality Assurance Program *FDA Prohibits Extra-Label Use of Cephalosporins *Rice Straw in Free Choice Dairy Heifer Rations *Dairy Food Safety Laboratory – Bovine Mastitis Screening | 8/18/08 | |
| Meeting Notice | Dairy Cattle Welfare Workshop, July 09, 2008 | 2/11/10 | |
| April, 2008 | Introducing the new UCCE Dairy Advisor, Jennifer Heguy | DOC | 4/2/10 |
| Commercial Goat Producers Workshop | Workshop to be held at the Merced County Agricultural Center 2145 W. Wardrobe Ave., Merced, CA May 14-15 Pre-registration required | DOC | 5/5/08 |
