Abstract: Laminitis causes lameness in donkeys, but its prevalence and factors associated with disease remain uncertain. Objective: To determine the prevalence of and identify factors associated with laminitis in donkeys. Methods: Retrospective cross-sectional study. Methods: All donkeys at the Donkey Sanctuary, UK, October 2015 to March 2019 were included. For animals that had laminitis during this period, age, sex, weight, body condition score, and the onset date and type of each episode (first or recurrent, acute or chronic) were recorded. Additionally, management data, foot lesion score, endocrine data, other medical conditions, occurrence of foot trimming, surgical procedures, diagnostic imaging, behavioural modification therapy or movement between farms within the month prior were noted. Controls were animals that did not experience laminitis during this period and similar data were recorded. Multivariable logistic regression modelling assessed the differences between the control group and laminitis outcome groups (first, all laminitis, acute and chronic episodes). Results: Altogether, 707 animals were included; 364 were control animals; 343 had a first episode of laminitis during the study period, of which 200/343 had no further episodes and 143/343 had recurrent episodes resulting in a total of 512 laminitis episodes and the period prevalence was 48.5% over 42 months. Overall, 180/512 (35%) laminitis episodes were acute and 332/512 (65%) were chronic. Compared with control animals, the laminitic outcome groups were significantly (P < .05) more likely to be younger (first episode), less likely to get extra feed (all four groups) or have an additional medical problem (first episode), and less likely to have undergone dental work, movement, imaging (all four groups) or surgery (first; all laminitis, chronic episodes) in the month preceding the episode. Conclusions: These results may not be applicable to the wider donkey population. Conclusions: Laminitis commonly affects donkeys, but factors associated with donkey laminitis differ from those reported in horses.
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This study investigates how common laminitis (a painful condition causing lameness) is in donkeys in UK and what factors may be associated with it.
Research methodology
The researchers conducted a retrospective cross-sectional study, looking back at records from October 2015 to March 2019.
The study covered all donkeys at the Donkey Sanctuary in the UK.
The researchers gathered data on all animals that had laminitis during this period, including their age, sex, weight, body condition score, and details of each laminitis episode like onset date and whether it was first or recurrent, acute or chronic.
Additional data was collected about management practices, such as the presence of foot lesions, endocrine data, other medical conditions, occurrence of foot trimming, surgical procedures, diagnostic imaging, behavioural therapy and movement between farms in the month before the onset of laminitis.
The control group included animals that did not suffer from laminitis during this period but had similar data collected.
The differences between the laminitic and non-laminitic groups were evaluated using multivariable logistic regression modelling.
Results
The study comprised 707 animals in total; 364 were controls and 343 had a first episode of laminitis during the study period.
From the laminitis group, 200 had no further episodes, while 143 had recurrent episodes, leading to a total of 512 laminitis episodes over 42 months.
The prevalence of laminitis in the population studied was 48.5% – revealing the condition is quite common among sanctuary donkeys. 180 cases were classified as acute and 332 as chronic indicating a higher prevalence of chronic laminitis.
Compared to controls, donkeys with laminitis were more likely to be younger (for a first episode), less likely to get extra feeding, have an additional health problem (for a first episode) and fewer had undergone dental work, movement, imaging (all laminitis groups) or surgery (first and chronic episode groups) in the month preceding laminitis onset.
Conclusions
The study reveals that the factors associated with donkey laminitis differ from those reported in horses, highlighting the need for separate therapeutic approaches for donkeys and horses with laminitis.
However, the conclusions drawn may not be applicable to all donkeys since this study was conducted in a single sanctuary setting and the sample may not be representative of the wider donkey population.
Cite This Article
APA
Menzies-Gow NJ, Wakeel F, Little H, Buil J, Rickards K.
(2021).
Cross-sectional study to identify the prevalence of and factors associated with laminitis in UK donkeys.
Equine Vet J.
https://doi.org/10.1111/evj.13505
Morrow LD, Smith KC, Piercy RJ, du Toit N, Burden FA, Olmos G. Retrospective analysis of post-mortem findings in 1444 aged donkeys.. J Comp Pathol 2011;144:145-56.
Cox R, Burden F, Proudman CJ, Trawford AF, Pinchbeck GL. Demographics, management and health of donkeys in the UK.. Vet Rec 2010;166:552-6.
Du Toit N, Shaw DJ, Keen J. Adrenocorticotropic hormone in domestic donkeys-reference values, seasonality and association with laminitis.. Proc 50th British Equine Veterinary Association Congress Liverpool, UK. 2011; p. 85-6.
du Toit N, Trawford AF, Keen JA. Insulin and ACTH values in donkeys with and without laminitis in the UK.. Proc 49th British Equine Veterinary Association Congress Birmingham, UK. 2010. p. 88.
Du Toit N, Trawford AF. Determination of serum insulin and insulin resistance in clinically normal donkeys and in donkeys with a history of laminitis (obese and non obese).. American College of Veterinary Internal Medicine Annual Congress Anaheim, California, 2010; p. 779.
Bailey SR, Habershon-Butcher J, Ransom K, Elliott J, Menzies-Gow NJ. Hypertension and insulin resistance in a mixed-breed population of ponies predisposed to laminitis: further characterizing pre-laminitic metabolic syndrome.. Am J Vet Res 2008;69:122-9.
Menzies-Gow NJ, Katz LM, Barker KJ, Elliott J, de Brauwere N, Jarvis N. An epidemiological study of pasture-associated laminitis and concurrent risk factors in the South of England.. Vet Rec 2010;690-4.
Hinckley KA, Henderson IW. The epidemiology of equine laminitis in the UK.. Proc 35th Congress of the British Equine Veterinary Association UK. 1996. p. 62.
Funk RA, Stewart AJ, Wooldridge AA, Kwessi E, Kemppainen RJ, Behrend EN. Seasonal changes in plasma adrenocorticotropic hormone and alpha-melanocyte-stimulating hormone in response to thyrotropin-releasing hormone in normal, aged horses.. J Vet Intern Med 2011;25:579-85.
Gehlen H, Twickel S, Stockle S, Weber C, Bartmann CP. Diagnostic orientation values for ACTH and other parameters for clinically healthy donkeys and mules (insulin, triglycerides, glucose, fructosamines, and -GT).. J Anim Physiol Anim Nutr (Berl) 2020;104:679-89.
Fricke WF, Song Y, Wang AJ, Smith A, Grinchuk V, Mongodin E. Type 2 immunity-dependent reduction of segmented filamentous bacteria in mice infected with the helminthic parasite Nippostrongylus brasiliensis.. Microbiome 2015;3:40.
Luthersson N, Mannfalk M, Parkin TDH, Harris PA. Laminitis: risk factors and outcome in a group of danish horses.. J Equine Vet Sci 2017;53:68-73.
Mendoza FJ, Toribio RE, Perez-Ecija A. Donkey internal medicine - part 1: Metabolic, endocrine and gastrointestinal tract disturbances.. J Equine Vet Sci 2018;66-74.
Masebo NT, Benedetti B, Angeloni MG, Lee L, Bigi D, Padalino B. Systematic Literature Review on Donkeys (Equus asinus): Husbandry and Welfare in Europe. Animals (Basel) 2025 Sep 23;15(19).