donkey

A comprehensive approach to minimise the fatal effects of tetanus and colic in donkeys of Ethiopia

E. Bojia
Feseha Gebreab
Alemayehu Fanta
G. Ayele
Megra Tesfaye
Andrew F. Trawford
Presentation date

Retrospective analysis of the clinic database between 2003-2005 indicated that tetanus (27 cases), colic (134), rabies (7), strangles (17), hyena bite (429), dystocia (39), hernia (27) and car accidents are the major causes of direct mortality in donkeys of Central Ethiopia. The case fatality rates of donkeys affected by these diseases were: tetanus 22%, colic 27%, dystocia 15%, strangles 12%, hernia 11%, hyena bite 7% and rabies 100%, in clinical intervention sites of the Donkey Sanctuary. In the non-intervention areas the mortality rates are expected to be higher as there would be no treatment intervention. In this paper the two major causes of mortality: tetanus and colic are discussed. In the project in Ethiopia, treatments of advanced cases of tetanus following standard procedures have been successful. Of 27 cases treated 21 have been cured. The treatment has, however, been expensive, costing the project an average of 1400 Eth Birr per donkey (mature donkey costs 300-400 Eth Birr) and requiring a long period of hospitalisation. In an ideal situation, prophylactic immunisation is the best option. Economic realities however prohibit such an option from being feasible in countries like Ethiopia. An extension system and strategy that focus on the prevention of wounds using proper harnesses/saddles and institution of a sound hoof care programme is the option in mind. Colic characteristics are: gastric impaction 8%, obstruction of small intestines 7%, colonic impactions 19%, flatulent colic 23%, enterolithiasis/foreign bodies 24%, throboembolism due to strongylosis and undiagnosed cases 19%. Free access to mouldy or coarse feed, ingestion of polythene bags, fertiliser sacks and used fabrics of nylon clothes were the major causes. Common sites of lodgement for enteroliths were the proximal portion of the transverse colon, transverse and small colons. Enterolith/foreign body was often diagnosed in pregnant donkeys with colic. Few cases were relieved by surgery. A considerable number of the enteroliths were removed by manual traction. Veterinary intervention alone will do little to alleviate such problems. The use of school children to collect polyethylene bags and fertiliser sacks, improve farmers' awareness of the risk being posed by these materials and that of braided nylon ropes. Encouraging farmers to prevent donkeys from grazing at waste disposal sites is also another preventive measure that can be practised against colic. Extension and education programmes for owners should pay particular attention to these issues.

Country
Published as conference proceedings
Publication date

A case study to investigate how behaviour in donkeys changes through progression of disease

Gabriela Olmos
Gemma McDonald
Florence Elphick
Neville G. Gregory
Faith A. Burden
Presentation date

Donkeys have a limited repertoire of non-specific signs displayed when in pain or sick. This study looked closely at donkey behaviour during the progression of different diseases with the aim of improving pain and sickness recognition.

Video footage of a group of 79 donkeys at The Donkey Sanctuary was obtained for 6 months; where 45 diseased cases observed. Due data completes, four cases were selected [Cases A) with respiratory disease due to herpes virus (n=2) and Cases B) end-stage cases (hyperlipaemia, n=1; chronic laminitis, n=1)] plus four healthy controls (n=4). Cases A were observed for 8hrs on day -10 and -1 prior to disease onset (day 0 = first veterinary visit) and during treatment (day 1, 5 and 10). Cases B were observed for 8hrs on day -7, -3 and on the day of euthanasia (day 0). Total time (minutes) performing 47 different behaviours were compared between (painful/sick vs. healthy) and within donkeys using chi-square or fisher’s exacts tests.

Diseased donkeys in cases A and B spent on average 10% more time (range, 3 - 17%, p<0.01) with a lowered head carriage compared to controls. Conversely, they spent 15% less time (range 6 - 34%, P<0.04) with their ears in combinations (i.e. each ear in opposite direction), thus meaning ears were more static and unresponsive. Ear changes were subtle but were the earliest indicators of pain/sickness in the observed donkeys. Cases B compared to the controls spent 31% more time in recumbency (range 7 - 60%, p<0.01), and 40% less time eating (range 1 - 64%, p<0.01). The reduction in total eating time was not substituted by any other oral behaviour (e.g. drinking, grooming, licking, and investigative behaviours), where drinking and grooming were greatly affected in the donkey with hyperlipaemia. Finally, abdominal effort was only observed in cases A and tended to reduce with time on treatment (p=0.06).

Donkeys are working animals of great importance worldwide, and these results highlight useful behavioural changes that can be used as monitoring signs of pain/sickness in these animals. The potential use of these signs warrants further studies in greater and more diverse donkey populations.

A case control study to investigate risk factors for impaction colic in UK donkeys

Ruth Cox
Faith A. Burden
Lee Gosden
Christopher Proudman
Andrew F. Trawford
Gina L. Pinchbeck
Presentation date

Impaction colic is the single most common type of colic diagnosed in a large population of donkeys (more than 2000 animals) at The Donkey Sanctuary, UK and the fatality rate from the disease is high. This paper reports risk factors for impaction colic in this population during 2006, identified using an unmatched case-control study. There were 71 cases of impaction colic and multivariable analysis identified a number of variables associated with the disease. Management factors that increased the risk of impaction included paper bedding, feeding of concentrates, limited access to pasture and increasing number of carers. In addition, health variables that were associated with an increased risk of impaction colic were weight loss, recent vaccination and a number of dental abnormalities. The implications of these associations are described and possible practical measures that might be implemented to reduce the risk of the disease are discussed.

Country
Published as conference proceedings
ISBN (13-digit)
978-0-94-807384-7

A journey of discovery - the role of the donkey in facilitated learning programmes

Jenna Goldby
Caron Whaley
Presentation date

The Donkey Sanctuary has been providing Donkey Assisted Therapy in locations across the UK since the mid 1970s. The Donkey Assisted Therapy programme aims to improve the lives of both the donkeys we provide sanctuary for, as well as children and adults who visit our centres for support, learning, fun and therapy.

Recently we have started to advance the way in which our centres run, to ensure that we can offer our services to a diverse array of users whilst maintaining the highest possible welfare standards for our donkeys. The change in working practices has seen us decreasing the amount of Therapeutic Riding Programmes offered, and increase Donkey Facilitated Learning (DFL) sessions. Thus opening up our service to a wider range of ages and abilities.

Since starting this journey of change we have found a positive impact on the progression of service users, the development of new user groups, and the welfare of the donkeys involved in the programme. Service users work through a programme of life skills learning which facilitates the development of psychosocial skills. Using Qualitative Behavioural Assessments donkeys have shown an increase in relaxed behaviours, and a decrease in anxious body language since the change in services offered.

Country
Not published as conference proceedings

Between the worlds of lost and found: the reciprocal relationship between excluded individuals and excluded animals

Roger Cutting
Presentation date

The Donkey Sanctuary is one of the world’s largest animal welfare charities and although its primary work is focussed on animals in Low Income Countries, the organisation does run significant animal assisted therapy programmes at its six farm centres in the UK. The ethological characteristics of the donkey make it an excellent facilitator in this process, reacting positively to human contact and actively seeking out interaction. Initially, at least, these programmes focused on children with additional needs but over the past four decades the demand for a programme that could help adults and children with a wide range of emotional, psychological and cognitive needs became increasingly apparent. The programme now also focusses on key life skills such as self-esteem, managing emotions and empathy. Furthermore, the wider client group now encompasses a more diverse set of emotional, psychological or physical needs, such as veterans, young people at risk, recovering addicts or those suffering the legacy of abuse. Engagement with animals in outdoor settings is an effective technique for establishing a position where affective behaviours may be explored and eventually expedited.

However, this paper presents two complimentary accounts. Initially it will discuss, through anonymised case-studies, the approaches that are adopted within this programme and will critically evaluate the difficulties of evaluating outcomes. It will then explore, within the context of the growing interest in animal therapies, the apparent enigma that while the outdoors is often cited as a medium in which therapies of varying types may take place, animals appear largely excluded from these narratives and therefore from published research. It concludes by exploring the paradoxical proposition that donkey assisted therapies involve one of the most derided and low status of animals, in strategies to promote the inclusion of those excluded from wider human society.

Country
Not published as conference proceedings

Colic in the donkey

The donkey is a unique species of equine, with certain specific variations and adaptations that differ from its cousin the horse. The donkey is used by humans as a pack and draft animal in areas of the world where its ability to cope with low‐quality fiber and harsh conditions have excluded the horse. This chapter highlights the differences in anatomy and particularly physiology that have enabled the donkey to fulfill these roles. One of the consequences of being equipped to survive in areas of food scarcity is the tendency to deposit adipose if conditions are reversed. This fact, combined with insulin resistance, leads donkeys rapidly to become metabolically compromised and develop hyperlipemia as a response to stress and sudden reduction in appetite. The consequence is that many donkeys with colic must also be treated for hyperlipemia, which may have a higher mortality rate than the primary condition. Pain behaviors in the donkey may be more subtle than those in the horse and therapeutically there are differences in drug metabolism between donkeys and horses. This chapter summarizes the types of colic that occur in the donkey in relation to anatomic location and as a consequence of management and environmental factors.

Chapter number
38
Start page
471
End page
487

Insecticide resistance in lice at The Donkey Sanctuary: strategies to mitigate its effects

Status
Applicant(s)
Collaborator(s)
Researcher(s)
Research award
Start date
End date
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Methodology

Prospective questionnaire and sample collection, and in vitro laboratory assay and analyses.

Aims
  1. To identify the presence of insecticide resistance in donkey lice.
  2. To identify risk factors for pediculosis.
  3. To develop a useful tool for diagnosing and estimating louse burden.
  4. Developing targeted selective treatment.
  5. Develop novel methods for controlling lice in donkeys.
Results
  1. Detected high levels of tolerance to permethrin ((SwitchTM, VetPlus Ltd, 4% (w/v) and cypermethrin (DeosectTM, Pfizer Ltd., 0.1% (w/v) consistent with resistance development.
  2. A strong seasonal pattern of louse infestation was identified, with the highest number of donkeys with lice recorded in winter (Oct-Mar). Significantly more very young (<4 yrs) and very old (>30 yrs) donkeys had lice than middle aged animals.Donkeys’ hair length was positively correlated with the presence of lice (P<0.05) but not with the number of lice each donkey carried (P=0.1). 
  3. The axilla and supraorbital fossa were identified as being the sites most commonly populated by live lice in both housed and outdoor donkeys (P<0.05).  In addition, the presence of lice eggs in the first 2cm of the coat is a good indicator of an active infestation . Excoriation consistent with hair fibre shortening was indicative of pediculosis and the amount of this type of rubbing a donkeys coat displayed was positively correlated with louse burdens. However, more severe dermal rub lesions, such as alopecia, showed no association.
  4.  Clipping was found to have no significant effect (P=0.15) on louse abundance 2 weeks or more after clipping in the winter;  however, in the summer months clipping did have a detrimental effect on louse populations.
  5. Tea tree and lavender essential oils were investigated and identified as clinically and statistically significant (P<0.05) methods of louse control used at 5% concentration as a topical grooming spray.
Conclusions

The population of lice at the sanctuary have a high level of tolerance to the pyrethroid insecticides previously used for their control. In vitro contact assays showed that 4% permethrin and cypermethrin resulted in <30% louse mortality after 24 h exposure. This level of insecticide tolerance may account for the treatment failures reported at the Sanctuary in recent years and highlights the need for alternative louse control strategies.

Detection of lice can be aided by targeting animals most at risk from infestation. Indeed, this study found a convex quadratic relationship between donkey age and probability of carrying lice, with the elderly and young most at risk. In addition excoriation consistent with light coat abrasion is an indicator of louse presence. However, overreliance on donkey characteristics and appearance is likely to lead to misdiagnosis of pediculosis. For accurate detection, examination of the coat should be thorough and include the most commonly infested louse predilection sites namely the axilla and supraorbital fossa.

As is the case with many species of Phthiraptera in temperate climates, the prevalence and abundance of Bovicola ocellatus displays a strong seasonal pattern, with >80% of animals infested in the winter months. However, a year round management protocol maybe advisable as summer clipping appears to have a detrimental effect on louse populations. 

 In addition, these preliminary findings indicate that tea tree and lavender essential oils provide a clinically useful level of B.ocellatus control and with further research and refinement they could form the basis of future louse control regimes in donkeys.

Keywords

Essential oils in the management of the donkey louse, bovicola ocellatus

Status
Applicant(s)
Collaborator(s)
Researcher(s)
Research award
Start date
End date
Country
Methodology

In vivo field trial. Suspensions of 5% (v/v) tea tree or lavender oil or an excipient only control were groomed into the coats of winter-housed donkeys (n = 198) on 2 occasions, 2 weeks apart. Louse counts were conducted before each application and 2 weeks later.

Objectives

To assess the effects of incorporating the essential oils of tea tree and lavender into a grooming programme for populations of donkeys with natural infestations of Bovicola ocellatus in the UK and Ireland when louse populations were at their winter seasonal peak.

Results

After 2 applications, the groups groomed with lavender or tea tree oil suspensions had a significant reduction in louse intensity, with a mean decline in louse abundance of 78% (95% confidence interval 76–80%). Louse numbers in the groups groomed with excipient only either did not change or increased significantly. Donkey hair length had no effect on the decline in louse numbers.

Conclusions

These results demonstrate that the inclusion of essential oil suspensions during grooming can be used to manage louse populations successfully.

Keywords

Reference intervals for biochemical and haematological parameters in mature domestic donkeys (equus asinus) in the UK

Status
Research award
Start date
End date
Country
Methodology

Blood samples were collected over a period of 3 years and 4 months from clinically healthy donkeys being prepared for rehoming from The Donkey Sanctuary. Complete blood counts and biochemical profiles were carried out within 24 hours of sampling.

Aims

To revise previously established haematology and serum biochemistry values in adult domestic donkeys in the UK.

Results

Blood samples from 138 donkeys were examined, ranging in age from 4-24 years. Data from 18 haematological and 20 biochemical analytes were analysed using non-parametric statistical testing. Reference interval transferability was calculated showing 15/18 haematological and 14/19 biochemical RIs were transferable between previous donkey RIs and these RIs. Of particular clinical note when comparing the new donkey RI with that reported previously is a narrowing of the RI for triglycerides with the upper limit of the range being 2.8 mmol/l as compared with the previous 4.3 mmol/l. It is very important that veterinarians note this difference as this upper limit of triglycerides is commonly used to determine the risk of a donkey becoming hyperlipaemic.

Conclusions

This study establishes reviewed reference intervals for haematological and biochemical parameters for donkeys. The reference intervals in this study are appropriate for use in non-working, mature donkeys kept in temperate climates and are now used by the diagnostic laboratories of The Donkey Sanctuary UK to aid clinical decision making in their resident animals. These reviewed reference intervals also underpin comments appended to results of blood samples from privately owned donkeys submitted by veterinarians to the diagnostic laboratory of The Donkey Sanctuary. These reference intervals may not be relevant to other donkey populations such as working donkeys in tropical regions. Their extrapolation to animals of extremes of age or in specific physiological states should be undertaken with caution. The lack of transferability noted between study parameters in donkeys and horses highlights the importance of using species-specific reference intervals for clinical assessment of veterinary cases.

Keywords

Mapping the issues of Indian donkey and mule population and identify the potential intervention strategies and partners

Status
Researcher(s)
Country

It is evident from the literature that working equines contribute much to the sustainable development goals through supporting the livelihood of poorest families worldwide. They are considered source of employment in various sectors including agriculture, construction, tourism and mining sector. However, the contribution in enhancing the livelihood of poor and welfare issues especially in the case of donkeys and mules are under-acknowledged and neglected in the policies and development programmes due to lack of information and data to support their contribution. Efforts by various animal welfare organisations to improve the welfare of working equines have not achieved significant positive changes. There is need for one welfare approach where welfare of animals and human to be considered interlinked to each other, so change in human welfare will bring positive change in animal welfare and improved animal welfare will increase the productivity and household income.

Methodology

The study will follow desktop review, qualitative and quantitative data collection methods across the regions where donkey and mule populations are relatively higher.

Aims

This study is aimed to map the issues of Indian donkey and mule population and their dependents in the broader developmental context to identify the potential institutional innovations to bring positive changes in animal and human welfare.

Objectives

1) To identify the donkey and mule population, trend and their usage patterns in rural, urban and industrial development context in different regions of India. 2) To specify the communities who own the donkey and mule population in different regions of the country. Evaluate the human development indicators associated with these communities specific to different regions. 3) To identify the key challenges and opportunities that impact the welfare of human and equine populations (one health approach) in the areas where donkey and mule populations are high.

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