donkey

Treponema spp. spirochetes and keratinopathogenic fungi isolated from keratomas in donkeys

Keratoma is an aberrant keratin mass thought to originate from epidermal horn-producing cells interposed between the stratum medium of the hoof wall and the underlying third phalanx. The cause is unknown, although the presence of keratomas is frequently associated with chronic irritation, focal infection, or trauma. A total of 167 donkeys with keratomas were presented in this study. The diagnosis of a keratoma was based on clinical signs, radiography, and histopathologic examination. Surgical excision was attempted on all donkeys with lameness unless euthanasia was advised. Histopathologic examination, including Giemsa, periodic acid Schiff, and Young’s silver special histochemical stains, was performed and showed the presence of fungal hyphae and spirochete bacteria within the degenerate keratin. Polymerase chain reaction (PCR) for treponeme bacteria was performed on 10 keratoma lesions and 9 healthy pieces of hoof (controls). All healthy donkey tissues were negative for the 3 recognized digital dermatitis (DD) treponeme phylogroups, whereas 3 of 10 (30%) donkey keratoma samples were positive for one of the DD treponeme phylogroups. Routine fungal culture and PCR for fungi were performed on 8 keratoma lesions and 8 healthy pieces of hoof (controls). Keratinopathogenic fungi were detected in 1 of 8 (12.5%) keratomas, while only non-keratinopathogenic, environmental fungi were detected in 8 control healthy hoof samples. This is the first time the DD treponemes phylogroup and keratinopathogenic fungi have been detected in keratomas. Further studies are required to assess the significance of this finding.

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Multisystemic eosinophilic epitheliotropic disease in three donkeys

Multisystemic eosinophilic epitheliotropic disease (MEED) is a rare condition of equids characterized by eosinophilic infiltration of multiple organs. Clinical signs are variable depending on the affected organs. The most common clinical signs include chronic weight loss, diarrhoea and exfoliative dermatitis. Respiratory distress and raised liver enzymes are less frequently seen. The cause is unknown and the pathogenesis is poorly understood. There are less than 50 reported cases of horses with MEED. We now document the lesions in three donkeys with fluctuating or chronic loss of weight, lethargy, exfoliative dermatitis and peripheral eosinophilia. All three animals were euthanized due to poor prognosis and welfare concerns. Post-mortem examination revealed multiple white to tan, irregular masses composed of eosinophilic infiltrates, including eosinophilic granulomas in several organs, confirming the presence of MEED. To the best of our knowledge, MEED has not previously been reported in donkeys.

Volume
201
Start page
105
End page
108
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Dental health and management practices of donkeys in the UK: What should we be considering?

Background

Several studies have shown dental disease to have a high prevalence and severity in donkeys. Limited studies have assessed the possible relationships between poor dental health and the management and health care of donkeys.

Objective

The aim of this study was to identify relationships between dental health and current management of donkeys in the UK and to provide recommendations to improve practices to help donkey welfare.

Study design

Observational cross-sectional survey.

Methods

A total of 596 donkeys surrendered to The Donkey Sanctuary (TDS) over a period of 30 months were included. Analysis was performed on three categories of information: entrance information submitted by previous owners and welfare professionals, pre-admission clinical examination records and arrival medical examination data.

Results

No statistically significant differences were identified between dental health and provision of bedding, or diet types. Agreement between external professionals and experienced TDS staff was weak in reference to recognition of dental pathology, age and body condition score (BCS). Over 25% of donkeys with severe dental pathology also had poor BCS (1–1.5). The majority of donkeys had no indication of previous dental examination.

Main limitations

Entrance information was not gathered and recorded in a structured manner.

Conclusions

Regular prophylactic dental care seems to have poor uptake amongst the owners of the study population, but this is perhaps, in part, aligned to the nature of the sanctuary. Owners are yet to take dental health into consideration when allocating a diet or bedding types to their donkeys, presenting a risk of colic/choke in those fed long fibres with an inability to process them adequately. The Donkey Sanctuary should continue to offer accessible means of education to reach both professionals and owners alike, and this may be well served by the implementation of the new, online, Donkey Academy.

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Donkey behaviour – an overview of defensive aggression during handling

Donkeys have significant behaviour variations in comparison with horses, due to each species evolving in different environments. Donkeys have a reduced flight response compared with horses, but an increased tendency to display fight or freeze behaviours. Unlike horses, they can display territorial, defensive behaviour and show a wide range of sexual behaviours that require consideration during management. Donkeys can bond strongly to other donkeys or animals and separating bonded companions can cause stress severe enough to induce the potentially fatal condition hyperlipaemia. Donkeys show stoic body language in response to pain. Awareness of subtle behavioural indicators of fear and pain can improve donkey welfare and improve handler safety.

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Learning with donkeys – a “more-than-human” approach to animal-assisted activities

The last twenty years have seen increased interest in animal-assisted therapy (AAT) and animal-assisted activity (AAA). However, there has been little research exploring these interactions as experienced by the animals themselves. In this paper, we bring a “more-than-human” lens to concepts and practices within AAA/T, synthesizing ideas about animal sentience and subjectivity that have emerged within animal geography scholarship and animal welfare science. We draw from empirical work with practitioners involved in donkey-facilitated learning (DFL) to examine the knowledge base of equine facilitators, including their beliefs, opinions, and assumptions about donkeys, their understanding of animal welfare, and their role in DFL. We discuss how knowledge of donkeys is mobilized to ensure more-than-human welfare during DFL; how animals’ “choice” to participate is encouraged and centered; how ideas of nonhuman labor create opportunities for considering more-than-human welfare; and how practitioners advocate for animals and embed practices of care for humans and nonhumans.

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Being with donkeys: insights into the valuing and wellbeing of donkeys in central Ethiopia

This paper explores the interwoven lives of donkeys and the people who depend on them for their livelihoods in central Ethiopia. Drawing on data from 12 participatory workshops, insights were elicited into the ways human co-workers value and treat their donkey co-workers. Methodologically, Participatory Rural Appraisal (PRA) and Appreciative Inquiry (AI) techniques were merged to explore the complex and multi-dimensional contributions donkeys make to participants’ lives. Findings reveal working with donkeys can make the difference between destitution and modest survival, but societal perception of donkeys as low-status animals has an impact on their owners’ lives and donkey wellbeing. This research contributes empirical insights on the valuing of donkeys and enables a deepened understanding of human-donkey relations. The combination of PRA and AI in the methodology demonstrates how to formulate a compassionate and empathetic approach for exploring donkey value and wellbeing with marginalized groups.

Ethiopia is home to approximately 19% of the estimated global donkey population of 45.8 million (FAO, 2018). These donkeys’ lives are intricately linked with the lives of people who own and work with them, often some of Ethiopian society’s most impoverished and marginalized members (Admassu & Shiferaw, 2011). Through their labor, donkeys provide transportation and draught power and can make a significant contribution to people’s livelihoods, enabling access to water, foodstuffs, education, and healthcare (Geiger et al., 2020; Maggs et al., 2021). But the social, economic, and cultural value of donkeys is more nuanced than this broad statement suggests, differing with the intricacies of the lives and requirements of the human(s) with whom they coexist. To support donkeys and those who depend upon them, it is necessary to further our understanding of the value placed on donkeys and the subtleties of their impact on people’s lives. Despite their important contributions to many of Ethiopia’s impoverished, donkeys remain absent from the government’s nonhuman animal health and welfare policies, are overlooked in development goals, and are undervalued by wider society. Thus, exploring how humans affect donkeys’ wellbeing is crucial for understanding and valuing donkeys’ impact in low- and middle-income countries.

While the number of recent studies analyzing the health and welfare of donkeys in Africa (Burn et al., 2010; Farhat et al., 2020; Geiger et al., 2021; Hiko et al., 2016; Stringer et al., 2017) has increased, little research has been conducted on social, economic, and cultural contributions of donkeys in these contexts (Maggs et al., 2021; Valette, 2015). Only a few studies focus on relationships between donkeys and their human counterparts in the African context (Geiger et al., 2020; Geiger & Hovorka, 2015). Methodologies in the scarce published literature have primarily been surveys, focus groups, questionnaires, and interviews (Hassan et al., 2013; Maggs et al., 2021; Sawi & Bwanga, 2008; Vasanthakumar et al., 2021). Few go beyond donkeys’ socioeconomic and sociocultural value to draw insights from data concerning the impacts of these animals on human lives, particularly in the Global South (Geiger & Hovorka, 2015; Geiger et al., 2020; Maggs et al., 2021; Vasanthakumar et al., 2021).

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A novel method for rearing orphaned donkey foals with behaviour in mind

The suckling behavior of donkey foals has rarely been explored, with most orphans being reared on protocols based on the assumption that their behavior and physiology do not differ from horses. An orphaned donkey foal at The Donkey Sanctuary was reared on an artificial suckling system, enabling the analysis of suckling behavior in an orphaned donkey. Milk formula was accessible 24-hours per day via the artificial system and suckling behavior was monitored, revealing that the foal suckled at a variable rate, with suckling durations, frequency and quantities differing from what was outlined in the standard bottle-feeding protocol for equines.

Volume
24
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Donkey skin trade and its non-compliance with legislative framework

Donkeys (Equus asinus) are facing a global crisis. Their welfare, and even survival, is being compromised as the demand for their skins increases. This demand is driven by the need to supply raw materials to produce ejiao, a traditional Chinese medicine made from collagen extracted from donkey skins. Since there is no productive chain for donkey skin production outside of China, the global trade is an entirely extractive industry that has resulted in the decimation of some local donkey populations. The donkey skin trade is demonstrably unsustainable, from the ethical issues associated with poor welfare, to the biosecurity and human health risks the trade poses; and it violates both legal frameworks and moral expectations at both a national and global level.

Volume
9
Publication date

Practical tips for anaesthesia of donkeys

Background: Donkeys make up a small but important percentage of patients seen by equine and mixed practices, but, while similar to horses in many respects, they have different management needs. Many of these differences are evident in the anaesthesia setting, and differentiating the treatment of donkeys from ‘small horses’ can lead to better outcomes for patients, owners and practices.

Aim of the article: This article highlights the differences between donkeys and horses with regards to induction and maintenance of anaesthesia and provides practical tips about performing safe anaesthesia of donkeys.

Journal
Volume
43
Issue
9
Start page
519
End page
530
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Comparisons of commercially available NIRS-based analyte predictions of haylage quality for equid nutrition

Maintaining animal health and performance relies on the availability of an appropriate diet. For herbivores, accurate assessment of forage nutrient quality is critical for appropriate diet formulation and rationing, including potential supplementation. Near-Infrared Reflectance Spectroscopy (NIRS) is a rapid method that is used in place of traditional chemical methodologies (wet chemistry) to predict analyte contents in forage samples. The method relies on scanning a sample with near-infrared light and predicting the analyte content by comparing the reflected spectra to a model which has been developed with samples of known analyte content measured by wet chemistry. The purpose of this study was to examine the accuracy of four NIRS-based methods on haylage from seven farm holdings compared with wet chemistry (the control). We analysed 64 samples for a range of analytes (dry matter (DM), pH, ash, acid detergent fibre expressed inclusive of residual ash (ADF), neutral detergent fibre assayed with a heat stable amylase and expressed inclusive of residual ash (aNDF), crude protein and water-soluble carbohydrate (WSC)) commonly assessed for haylage quality in equid nutrition. We compared results obtained by wet chemistry to corresponding NIRS-based predictions from four commercially available NIRS services. The results revealed large discrepancies amongst all five methods. For DM, average bias (mean±SD) for three reported methods was -15.5±188.4, -10.1±50.4, 12.9±33.8 g/kg respectively and for WSC reporting positive bias from four methods of 26.9±51.3, 24.8±38.2, 26.2±50.1 and 14.5±45.2, g/Kg respectively. The extent of these discrepancies from the wet chemistry also varied by analyte where for example, predictions for DM were more reliable than those for WSC and results demonstrated that predictions obtained by NIRS could result in feeding forage outside of target nutritional values.

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