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The Veterinary clinics of North America. Equine practice2026; 42(3); 615-636; doi: 10.1016/j.cveq.2026.07.009

Endocrine and Metabolic Diseases in Donkeys.

Abstract: Donkeys have a plethora of species-specific metabolic traits that make them predisposed to endocrinopathies and metabolic disturbances. Due to their ability to digest poor-quality feedstuff and accumulate adipose tissue, donkeys are prone to obesity. Insulin dysregulation/metabolic syndrome, pituitary pars intermedia dysfunction, and endocrinopathic laminitis are also prevalent in donkeys. Their efficiency to mobilize fat in situations of increased energy demands increases the predisposition to dyslipidemias. There are major endocrine differences between horses and donkeys, with different protocols to diagnose endocrine and metabolic diseases. Thus, a donkey-specific approach is crucial to avoid misdiagnosis, inadequate treatments, additional costs, or complications.
Publication Date: 2026-09-18 PubMed ID: 42754429DOI: 10.1016/j.cveq.2026.07.009Google Scholar: Lookup
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Summary

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Endocrine and metabolic diseases in donkeys are influenced by their unique metabolic characteristics, which make them susceptible to conditions such as obesity, insulin dysregulation, pituitary disorders, and metabolic-related laminitis. Understanding these species-specific traits is essential for accurate diagnosis and appropriate treatment.

Species-Specific Metabolic Traits of Donkeys

  • Donkeys possess unique metabolic characteristics different from horses.
  • They efficiently digest poor-quality forage, allowing survival on low-nutrient diets.
  • High propensity to accumulate adipose tissue, leading to obesity under certain conditions.
  • Ability to mobilize fat rapidly during increased energy demands, which predisposes them to metabolic imbalances.

Common Endocrine and Metabolic Diseases in Donkeys

  • Obesity: Due to fat accumulation and dietary habits, donkeys are prone to becoming overweight.
  • Insulin Dysregulation and Metabolic Syndrome: These disorders affect glucose and insulin metabolism, contributing to systemic health issues.
  • Pituitary Pars Intermedia Dysfunction (PPID): An endocrine disorder involving the pituitary gland, causing hormone imbalances.
  • Endocrinopathic Laminitis: A painful and disabling condition affecting the hooves, linked to metabolic disturbances.
  • Dyslipidemias: Imbalanced blood lipid profiles caused by the rapid mobilization of fat stores.

Differences Between Donkeys and Horses

  • Donkeys exhibit significant endocrine system differences compared to horses.
  • These differences influence the presentation and progression of metabolic diseases.
  • Diagnostic protocols that are effective in horses may not be suitable for donkeys.
  • Standard treatments used in horses might be inadequate or harmful if applied directly to donkeys.

Importance of a Donkey-Specific Approach

  • Utilizing donkey-specific diagnostic methods reduces the risk of misdiagnosis.
  • Tailored treatments improve therapeutic outcomes and reduce the likelihood of complications.
  • Prevents unnecessary costs by avoiding inappropriate interventions.
  • Supports better long-term health management in donkeys suffering from endocrine and metabolic conditions.

Cite This Article

APA
Mendoza FJ, Toribio RE, Perez-Ecija A. (2026). Endocrine and Metabolic Diseases in Donkeys. Vet Clin North Am Equine Pract, 42(3), 615-636. https://doi.org/10.1016/j.cveq.2026.07.009

Publication

ISSN: 1558-4224
NlmUniqueID: 8511904
Country: United States
Language: English
Volume: 42
Issue: 3
Pages: 615-636
PII: S0749-0739(26)00056-8

Researcher Affiliations

Mendoza, Francisco J
  • Department of Animal Medicine and Surgery, University of Cordoba, Campus Rabanales, Road Madrid-Cadiz km 396, Cordoba 14014, Spain. Electronic address: fjmendoza@uco.es.
Toribio, Ramiro E
  • Department of Veterinary Clinical Sciences, The Ohio State University, 601 Vernon Tharp Street, Columbus, OH 43210, USA.
Perez-Ecija, Alejandro
  • Department of Animal Medicine and Surgery, University of Cordoba, Campus Rabanales, Road Madrid-Cadiz km 396, Cordoba 14014, Spain.

MeSH Terms

  • Animals
  • Equidae
  • Metabolic Diseases / veterinary
  • Metabolic Diseases / diagnosis
  • Metabolic Diseases / therapy
  • Endocrine System Diseases / veterinary
  • Endocrine System Diseases / diagnosis
  • Endocrine System Diseases / therapy

Conflict of Interest Statement

Disclosures The authors have no financial or personal conflicts that could influence or bias the content of this publication.

Citations

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