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MSD MANUAL
Veterinary Manual
VETERINARY CONTENT
PET HEALTH
RESOURCES
QUIZZES
ABOUT
Veterinary
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About
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Contributors
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zachary k. smith
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Zachary K. Smith, PhD
Affiliations
Assistant Professor of Ruminant Nutrition and Feedlot Management, Department of Animal Science
South Dakota State University
Manual Chapters and Commentaries
Chapters
Growth Promotants and Production Enhancers