Metabolomic Profiles in Starved Light Breed Horses during the Refeeding Process.
Abstract: The large population of emaciated horses continues to be an issue troubling the equine industry. However, little is known regarding the collection of equine metabolites (metabolome) during a malnourished state and the changes that occur throughout nutritional rehabilitation. In this study, ten emaciated horses underwent a refeeding process, during which blood samples were collected for a blood chemistry panel and metabolomics analysis via ultrahigh performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS). Significant differences among blood chemistry analytes and metabolite abundance during the critical care period (CCP; Days 1-10 of rehabilitation) and the recovery period (RP; the remainder of the rehabilitation process) were observed. Potentially toxic compounds, analytes related to liver, kidney, and muscle function, as well as energy-related metabolites were altered during the refeeding process. The combination of blood chemistry and metabolomics analyses on starved equine during rehabilitation provide vital biological insight and evidence that the refeeding process has a significant impact on the equine metabolome.
Publication Date: 2022-09-21 PubMed ID: 36230267PubMed Central: PMC9559287DOI: 10.3390/ani12192527Google Scholar: Lookup
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- Journal Article
Summary
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This research article addresses the impact of the refeeding process on emaciated horses, identifying significant changes in the horses’ metabolite abundance during their recovery from malnutrition.
Overview of the Study
- The study’s subjects were ten malnourished horses. The researchers focused on studying these animals’ metabolome, or the collection of metabolites in their bodies, as they underwent a nutritional rehabilitation process.
- Drawing blood samples regularly, the researchers conducted a blood chemistry panel and metabolomics analysis using ultrahigh performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS).
- The time period of rehabilitation was divided into two: the critical care period (CCP), covering the first ten days, and the recovery period (RP), encompassing the rest of the refeeding process.
Significant Findings
- The research found significant changes in blood chemistry analytes and metabolite abundance between CCP and RP.
- Different metabolites associated with liver, kidney, and muscle function were altered during the refeeding process.
- Energy-related metabolites also changed, showing the physiological adaptations made by the horses as they started recovering from a state of malnutrition.
- The presence of potentially toxic compounds was noted, representing a possible risk during the refeeding process.
Conclusions
- This study provided valuable biological insights into the rehabilitation of starved horses, revealing how the entire refeeding process impacts their metabolome. Evidence generated by this study significantly contributes to the equine industry, especially in formulating proper refeeding protocols for malnourished horses.
- The remarkable changes in metabolites highlight the importance of careful monitoring and tailored feeding strategies during the rehabilitation of emaciated horses.
Cite This Article
APA
Main SC, Brown LP, Melvin KR, Campagna SR, Voy BH, Castro HF, Strickland LG, Hines MT, Jacobs RD, Gordon ME, Ivey JLZ.
(2022).
Metabolomic Profiles in Starved Light Breed Horses during the Refeeding Process.
Animals (Basel), 12(19), 2527.
https://doi.org/10.3390/ani12192527 Publication
Researcher Affiliations
- Department of Animal Science, University of Tennessee, 2506 River Drive, Knoxville, TN 37996, USA.
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, TN 37996, USA.
- Department of Animal Science, University of Tennessee, 2506 River Drive, Knoxville, TN 37996, USA.
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, TN 37996, USA.
- Biological and Small Molecule Mass Spectrometry Core, University of Tennessee, 1416 Circle Drive, Knoxville, TN 37996, USA.
- Department of Animal Science, University of Tennessee, 2506 River Drive, Knoxville, TN 37996, USA.
- Department of Nutrition, University of Tennessee, 1215 W. Cumberland Ave., Knoxville, TN 37996, USA.
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, TN 37996, USA.
- Biological and Small Molecule Mass Spectrometry Core, University of Tennessee, 1416 Circle Drive, Knoxville, TN 37996, USA.
- Department of Animal Science, University of Tennessee, 2506 River Drive, Knoxville, TN 37996, USA.
- College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA.
- College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA.
- Purina Animal Nutrition, 100 Danforth Drive, Gray Summit, MO 63039, USA.
- Purina Animal Nutrition, 100 Danforth Drive, Gray Summit, MO 63039, USA.
- Department of Animal Science, University of Tennessee, 2506 River Drive, Knoxville, TN 37996, USA.
Grant Funding
- One UT Collaboration and Innovation Grant / University of Tennessee at Knoxville
- Independent contract / Purina Animal Nutrition
- Independent Contract / Standlee Premium Western Forage
Conflict of Interest Statement
R.D.J. and M.E.G. are employed by Purina Animal Nutrition and aided in initial study design, blood parameter analysis, and final approval of the submitted manuscript.
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Citations
This article has been cited 1 times.- Austin MMP, Ivey JLZ, Shepherd EA, Myer PR. Methodologies to Identify Metabolic Pathway Differences Between Emaciated and Moderately Conditioned Horses: A Review of Multiple Gene Expression Techniques. Animals (Basel) 2025 Oct 10;15(20).
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