People

OSU Personnel with Dairy Expertise

Columbus and Wooster Campus Personnel: 

Valente Alvarez (614) 292-7765 
Food Science & Technology
Food Industries Center
 
Dairy Products & Processing 

Bonnie Ayars (614) 688-3143
Animal Sciences
Extension Associate, Dairy

Luciana da Costa (614) 247-8145
Vererinary Precentive Medicine
Milk Quality


Maurice Eastridge (614) 688-3059 
Animal Sciences 
Nutrition 

Jeffrey Firkins (614) 688-3089 
Animal Sciences 
Nutrition

Ann Ottobre (614) 292-7135 
Animal Sciences 
Reproductive Physiology 

Joseph Ottobre (614) 688-3144 
Animal Sciences 
Reproductive Physiology 

Katy Proudfoot (614) 292-9453
Veterinary Preventive Medicine
Animal Welfare


Gustavo Schuenemann (614) 292-9453
Veterinary Preventive Medicine
Animal Health and Reproduction

Sherry Smith (330) 465-2376
Animal Sciences 
Extension Associate, 4-H Dairy

Mark Sulc (614) 292-9084 
Horticulture and Crop Science 
Forage Production 

William Weiss (330) 263-3622 
Animal Sciences 
Nutrition and Forages

Agricultural Technical Institute:

Royce Thornton (330) 287-1373
Animal Genetics  and Herd Management


County and Field Specialist Personnel: 

Glen Arnold (419) 235-4724
Extension Field Specialist, Findlay 
Manure Nutrient Management Systems

Debbie Brown (937) 498-7239
Extension Educator, Shelby County
Herd Management  

Peggy Kirk Hall (614) 247-7898
Extension Field Specialist, Columbus
Agricultural and Resource Law

Jason Hartschuh (419) 562-8731
Extension Educator, Crawford County
Herd Management

Rory Lewandowski (330) 264-8722
Extension Educator, Wayne County
Forage Production

David Marrison (440) 576-9008
Extension Educator, Ashtabula County
Herd Management

Dennis Riethman (419) 586-2179
Extension Educator, Mercer County
Herd Management

Dianne Shoemaker (330) 533-5538
Extension Field Specialist, Canfield 
Dairy Production Economics

Jeff Stachler (419) 739-6580
Extension Educator, Auglaize County
Weed Science  

Chris Zoller (330) 339-2337 
Extension Educator, Tuscarawas County 
Human Resource Management and Farm Transition