Staff Directory
Desert Research & Extension Center
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Phone:
(760) 356-3060
Fax:
(760) 356-3073
Director
![Photo of Dr Jairo N Diaz-Ramirez](https://ucanr.edu/DIRPhotos/31088.jpg)
Title: Director
Specialty: Water Resources
Address:
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Phone: 760-356-3065
Fax: 760-356-3073
Email: jdiazr@ucanr.edu
Director
Business Office
![Photo of Kat Hicklin](https://ucanr.edu/DIRPhotos/24142.jpg)
Title: South Coast REC, UCCE Orange, and Desert REC Business Officer
Address:
7601 Irvine Blvd
Irvine, CA 92618
Phone: 949-653-1812
Fax: 949-653-1800
Email: khicklin@ucanr.edu
![Photo of Silvia Quintana](https://ucanr.edu/DIRPhotos/1847.jpg)
Title: Administrative Assistant
Address:
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Phone: (760) 356-3060
Email: spquintana@ucanr.edu
Farm Smart Program
![Photo of Clarissa Jayde Abarca](https://ucanr.edu/DIRPhotos/49629.jpg)
![Photo of Valeria Landeros](https://ucanr.edu/DIRPhotos/46006.jpg)
Field Research Support
![Photo of Gersain Lopez Gomez](https://ucanr.edu/DIRPhotos/43047.jpg)
Title: Ag Technician
Address:
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Email: lopezg@ucdavis.edu
![Photo of Gilberto Magallon](https://ucanr.edu/DIRPhotos/2892.jpg)
Title: Center Superintendent
Specialty: Vegetable crops
Address:
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Phone: (760) 356-3064
Fax: (760) 356-3073
Email: gmagallon@ucanr.edu
![Photo of Rogelio Ortega](https://ucanr.edu/DIRPhotos/22036.jpg)
Title: Principal Agricultural Technician
Address:
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Phone: 760-356-3060
Fax: 760-356-3073
Email: rgortega@ucdavis.edu
![Photo of Efrain R Sambrano](https://ucanr.edu/DIRPhotos/1.jpg)
Title: Ag Technician
Address:
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Phone: (760) 356-3065
Email: ersambrano@ucdavis.edu
Physical Plant/Equipment Support
![Photo of Victor H Arredondo](https://ucanr.edu/DIRPhotos/35809.jpg)
Title: Senior Custodian
Address:
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Email: vharredondo@ucanr.edu
![Photo of Edgar Lomeli](https://ucanr.edu/DIRPhotos/50089.jpg)
![Photo of David Preciado](https://ucanr.edu/DIRPhotos/2760.jpg)
Title: Physical Plant Mechanic
Address:
ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
Phone: (760) 356-3060
Email: drpreciado@ucanr.edu
Principal Investigator
Title: Professor
Specialty: Ruminant nutrition; feedlot cattle nutrition and management; factors associated with digestive function.
Address:
Animal Science
One Shields Avenue
Davis, CA 95616-8521
Phone: (760) 356-3068
Email: razinn@ucdavis.edu