Amino acid requirements in horses

Chan Hee Mok, Kristine L. Urschel

Research output: Contribution to journalReview articlepeer-review

6 Scopus citations


Evaluating amino acid requirements, specifically threonine requirements, in horses will enable better feed formulation and result in economic production, improved animal health, and reduced environmental pollution. However, the current knowledge of protein and amino acid requirements in horses is still limited. Because horses have a unique digestive system and consume a variety of feed ingredients, their protein digestibility may be affected than other species by different feed composition, and thus amino acid requirements are susceptible to vary between situations. Therefore, a careful evaluation of amino acid requirements with a proper method is needed for various conditions. This review will also provide comprehensive information that needs to be considered when designing an amino acid requirement study in horses.

Original languageEnglish
Pages (from-to)679-695
Number of pages17
JournalAsian-Australasian Journal of Animal Sciences
Issue number5
StatePublished - May 1 2020

Bibliographical note

Funding Information:
The authors wish to acknowledge undergraduate students, graduate students, faculty and staff in the Department of Animal and Food Sciences at the University of Kentucky for this assistance in performing some of the research summarized. In particular the staff at Maine Chance Farm and Tammy BrewsterBarnes who provided technical expertise helping with sampling and sample analyses. A portion of the research summarized was supported by the Agriculture and Food Research Initiative Competitive Grant no20126701519448 from the USDA National Institute of Food and Agriculture.

Publisher Copyright:
Copyright © 2020 by Asian-Australasian Journal of Animal Sciences.


  • Amino acid nutrition
  • Equine
  • Protein digestibility
  • Requirement evaluation
  • Threonine

ASJC Scopus subject areas

  • Food Science
  • Animal Science and Zoology
  • Engineering (all)


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