Threonine is often considered the second most limiting amino acid in equine diets after lysine, at least for growing horses. Low levels of threonine in the diet can affect gut health and protein synthesis in all cells of the body.
Threonine has a number of roles:
- A high energy muscle compound called creatine is produced from threonine, by way of conversion from glycine.
- Gut health support and nutrient absorption. Threonine is required for the production of mucin proteins that form a protective mucous barrier between the acidic gut environment and the cells of the stomach and intestine.
- Mediates gene expression for the burning and storage of fat.
- Involved in how proteins function in response to signals from outside cells.
- Can be used to produce glucose from a process in the liver called gluconeogenesis. The glucose can then be used to produce energy.
If you need a supplement to support muscle building/topline as well as healthy hooves, Balanced Equine Equine Amino may be the better choice. Equine Amino contains lysine, methionine and threonine.
Best before date is 3 years if stored in a dry and cool place.
Dr Kellon VMD recommends:
2 – 5 g threonine, mix with feed.
The NRC (National Research Council) estimates that a 500 kg horse in no work (maintenance) requires 17 grams of threonine per day.
If in work (exercising), the requirement is 19 to 22 g depending on the exercise intensity.
Growing horses may require between 18 g per day for a 170 kg weanling (4-10 months).
For a yearling (11-17 months), the requirement is 29 g per day.
Mok, CH and Urschel KL (2020) Amino acid requirements in horses
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7206390/
Graham PM et al (1994) The effect of supplemental lysine and theonine on growth and development of yearling horses
https://pubmed.ncbi.nlm.nih.gov/8157522/
Law GK et al (2007) Adequate oral thiamine is critical for mucin production and gut production in neonatal piglets
https://journals.physiology.org/doi/full/10.1152/ajpgi.00221.2006
Staniar WB et al (2001) Growth of Thoroughbreds fed a low-protein supplement fortified with lysine and threonine
https://pubmed.ncbi.nlm.nih.gov/11518223/
Amino Acid Supplements for Horses
https://drkhorsesense.wordpress.com/2023/04/17/amino-acid-supplements-for-horses/
Understanding Amino Acids by Dr Kellon
https://drkhorsesense.wordpress.com/2020/08/12/understanding-amino-acids/
Matching Feeding to Activity Level
https://drkhorsesense.wordpress.com/2017/10/15/matching-feeding-to-activity-level/
Living with Old Soft Tissue Injuries
https://drkhorsesense.wordpress.com/2017/07/09/living-with-old-soft-tissue-injuries/
Nutrition for the Lactating Mare by Dr Kellon
https://drkhorsesense.wordpress.com/2019/05/04/nutrition-for-the-lactating-mare/
Nutritional Support for Shedding by Dr Kellon
https://drkhorsesense.wordpress.com/2020/03/21/nutritional-support-for-shedding/
Methionine Supplementation May Be Crucial by Dr Kellon
https://drkhorsesense.wordpress.com/2020/06/11/methionine-supplementation-may-be-crucial/
Sulfate and Your Horse by Dr Kellon
https://drkhorsesense.wordpress.com/2024/03/02/sulfate-and-your-horse/
The amino acid Threonine is a nutritional supplement product for inclusion in horse’s feed. Product has no therapeutic effect and is designed to be administered in a feed for voluntary ingestion for horses.
Animal consumption only.
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