mule

This article provides a review of hoof anatomy and care in donkeys and mules. Hoof disease is a major cause of poor welfare and mortality globally. Problems associated with hoof disease are discussed in the context of behavior, diet, treatment, and prevention. The most common conditions encountered are discussed, including laminitis, the overgrown unbalanced hoof, white line disease, flexural deformities, and other significant issues. Differences between donkey and horse hoof anatomy are described.

Published online ahead of print.

A review of common gastrointestinal disorders of donkeys and mules is presented. Clinically relevant aspects of donkey behavior, anatomy, and physiology are highlighted. Diagnosis, management, and treatment of conditions affecting the gastrointestinal tract from stomach to rectum, including liver and pancreas, are discussed.

Published online ahead of print.

As a unique species of equine the donkey has certain specific variations from the horse. This review highlights the origins of the donkey and how this impacts upon its behaviour, physiology and propensity to disease. The donkey is less of a flight animal and has been used by humans for pack and draught work, in areas where their ability to survive poorer diets, and transboundary disease while masking overt signs of pain and distress has made them indispensable to human livelihoods.

When living as a companion animal however the donkey easily accumulates adipose tissue, this may create a metabolically compromised individual prone to diseases of excess such as laminitis and hyperlipaemia. They show anatomical variations from the horse especially in the hoof, upper airway, and their conformation. Variations in physiology lead to differences in the metabolism and distribution of many drugs. With over 44 million donkeys worldwide it is important that veterinarians have the ability to understand and treat this equid effectively.

The domestic donkey is a unique equid species with specific nutritional requirements. This article examines the importance of feeding strategies that mimic the donkey's natural environment using poor nutritional quality fibers and access to browsing materials. The relationship between nutrition and health is examined and practical approaches to the healthy and sick donkey are discussed.

Published online ahead of print.

The donkey's evolution, ethology and learning capacity mean that the behaviour of donkeys and mules is significantly different to that of the horse. Subtle behaviour change in the donkey can indicate severe, life-threatening disease. An understanding of donkey and mule behaviour will help veterinary surgeons to handle these animals safely, treat them effectively and educate owners to spot the subtle signs of disease

Recently, the need for a more holistic approach to welfare assessment has been highlighted. This is particularly pertinent in the case of working equids who provide vital support for human livelihoods, often in low- to middle-income countries, yet suffer from globally low standards of welfare. This study aimed to provide insight into the welfare status and traditional use of working equids in rural Western European communities using the new EARS welfare tool, designed to provide a broad view of the welfare of working equids and the context in which they are found. Other questions on the topics of equid management practices, social transmission of expertise, environmental stressors, and traditions, alongside physical and behavioural welfare assessments were also included to explore the impact of these wide-ranging factors on an understudied population of working equids. The protocol was trialled on 60 working equid owners from communities in Portugal and Spain where, despite the decline in traditional agricultural practices and livestock keeping, donkeys and mules remain working animals. Many owners stated that the help donkeys provided was invaluable, and donkeys were considered to be important for both farming and daily life. However, participants also recognised that the traditional agricultural way of life was dying out, providing insights into the traditional practices, community structure, and beliefs of equid owners. Questions investigating the social networks and social transfer of information within the villages were effective in finding local sources of equid knowledge. Overall, welfare was deemed fair, and the protocol enabled the identification of the most prevalent welfare problems within the communities studied, in this case obesity and the use of harmful practices. The findings suggest that the new protocol was feasible and detail how contextual factors may influence equid welfare. Increasing understanding of the cultural context, social structure, and attitudes within a community, alongside more traditional investigations of working practices and animal management, may, in the future, help to make equid welfare initiatives more effective.

Background

Factors affecting working equid welfare are wide-ranging and reflect cultural, economic and climatic conditions, the type of work equids are used for, and individual differences in the practices of their handlers. In Mexico working equids are widely used for facilitating agricultural activities, however, welfare issues are common.

Objectives

To assess working equids across three communities in Mexico, identify predominant welfare problems and document how these problems vary across locations and associated working roles and species type.

Study design

Cross-sectional survey.

Methods

The study combined the administration of a wide-ranging questionnaire to equid handlers/owners and a welfare assessment of their animal. 120 equid owners were asked about their equid management practices, the working conditions and health status of their animal. The welfare of their equids (56 donkeys, 7 mules, 57 horses) was assessed by evaluating body condition, signs of illness or injury, and behavioural indicators.

Results

Welfare varied by species, working role, sex and location. The poorest welfare was seen in one of the two arid regions (the third location having a tropical climate). Donkeys had poorer welfare than horses, and equids used for packing had poorer welfare than those used for riding and agroforestry. Overall poor body condition and wounds were the most common problems seen.

Main limitations

Work type, species type and location strongly co-varied, thus the impact of each factor could not be assessed in isolation. The sample size was relatively small.

Conclusions

Results showed significant regional variations in welfare, suggesting that environmental and/or cultural variations are producing a major effect on welfare.

Published online ahead of print.