25
Page 1 of 25 Evaluation of the prevalence, nature and distribution of skin wounds in donkeys in Tamil Nadu, India Background WVS India has been working in Tamil Nadu with the working donkeys since 2011, regularly conducting camps for deworming and tetanus vaccinations. Wounds are treated frequently, but often owners are unaware of both the nature of the wounds and how to prevent them. Furthermore, their general understanding of the welfare of their animals is limited, and consequently, donkeys continue to suffer. Studies in donkey welfare are limited. One study found that the majority of owners of working donkeys in the Bareilly city of India were aware of some of the Five Freedoms (Biswas et al, 2013) suggesting that there is an appreciation of welfare and a basis for progression. Preventable wounds and deliberate “mutilations” are a common occurrence in donkeys throughout the world. A separate study assessed lesions in donkeys from a variety of countries, including India, and found them to be most common on the breast/shoulders, wither and girths, with the type of wounds being related directly to the type of work being performed (Pritchard el al, 2005). Furthermore, the majority had a poor body condition score and demonstrable lameness or gait abnormalities. Since 2011, the WorldWide Vet Service (WVS) (India) donkey health camps have been providing welfare education to the donkey owners and helping to address commonly encountered issues like poor harness fitting and the use of hobbles. However, they continue to see preventable injuries in these animals. Therefore, a thorough understanding of the nature and type is necessary in order to formulate and implement a targeted intervention programme which fully addresses the current issues faced by donkeys in Tamil Nadu. The aims of this study were therefore to: (1) Evaluate the nature, prevalence and distribution of skin wounds/mutilations in donkeys in 5 regions in Tamil Nadu, India and (2) To use this information to direct future, larger studies on the assessment of wounds in donkeys based on seasonality and work patterns to implement further, targeted interventions. Method A series of animal welfare-based indicators were compiled, partially based on previously published protocols for donkey welfare assessment (3) (4). The first section focused on general data including demographics of both owner and donkeys. A health assessment followed, including a section specifically detailing each skin lesion present (location, size, type etc). Owners were asked to score the severity of each lesion and this was recorded together with the score given by the attending vet. These questions were located on a smart phone app which was used at 5 locations in Tamil Nadu where Donkey Camp initiatives were currently organised by the WVS. Data was collected from 5 locations between October 2016 and July 2017. Data was transferred to Microsoft Excel 2010 for analysis. Minitab 17 was used for statistical analysis and Endnote X8 as a reference manager. The report was compiled in Microsoft Word 2010.

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Page 1: Evaluation of the prevalence, nature and distribution of

Page 1 of 25

Evaluation of the prevalence, nature and distribution of skin wounds in

donkeys in Tamil Nadu, India

Background

WVS India has been working in Tamil Nadu with the working donkeys since 2011, regularly

conducting camps for deworming and tetanus vaccinations. Wounds are treated frequently,

but often owners are unaware of both the nature of the wounds and how to prevent them.

Furthermore, their general understanding of the welfare of their animals is limited, and

consequently, donkeys continue to suffer.

Studies in donkey welfare are limited. One study found that the majority of owners of

working donkeys in the Bareilly city of India were aware of some of the Five Freedoms

(Biswas et al, 2013) suggesting that there is an appreciation of welfare and a basis for

progression. Preventable wounds and deliberate “mutilations” are a common occurrence in

donkeys throughout the world. A separate study assessed lesions in donkeys from a variety

of countries, including India, and found them to be most common on the breast/shoulders,

wither and girths, with the type of wounds being related directly to the type of work being

performed (Pritchard el al, 2005). Furthermore, the majority had a poor body condition score

and demonstrable lameness or gait abnormalities. Since 2011, the WorldWide Vet Service

(WVS) (India) donkey health camps have been providing welfare education to the donkey

owners and helping to address commonly encountered issues like poor harness fitting and

the use of hobbles. However, they continue to see preventable injuries in these animals.

Therefore, a thorough understanding of the nature and type is necessary in order to

formulate and implement a targeted intervention programme which fully addresses the

current issues faced by donkeys in Tamil Nadu.

The aims of this study were therefore to: (1) Evaluate the nature, prevalence and distribution

of skin wounds/mutilations in donkeys in 5 regions in Tamil Nadu, India and (2) To use this

information to direct future, larger studies on the assessment of wounds in donkeys based

on seasonality and work patterns to implement further, targeted interventions.

Method

A series of animal welfare-based indicators were compiled, partially based on previously

published protocols for donkey welfare assessment (3) (4). The first section focused on

general data including demographics of both owner and donkeys. A health assessment

followed, including a section specifically detailing each skin lesion present (location, size,

type etc). Owners were asked to score the severity of each lesion and this was recorded

together with the score given by the attending vet. These questions were located on a smart

phone app which was used at 5 locations in Tamil Nadu where Donkey Camp initiatives

were currently organised by the WVS. Data was collected from 5 locations between

October 2016 and July 2017.

Data was transferred to Microsoft Excel 2010 for analysis. Minitab 17 was used for statistical

analysis and Endnote X8 as a reference manager. The report was compiled in Microsoft

Word 2010.

Page 2: Evaluation of the prevalence, nature and distribution of

Page 2 of 25

Results

Overview of data

The results are summarised in Tables 1 and 2.

In total, 582 donkeys were assessed in 5 locations within Tamil Nadu between October 2016

and July 2017. Each donkey was assessed by the same WVS veterinarian at the owner’s

home. The primary reason for the visit was to assess health status and administer any

necessary treatments. All donkeys examined were included in the study. 57.5% of donkeys

received treatment; the remainder of the donkeys did not require treatment but were

included in the study (42.5%).

94.8%% were used as pack animals, with the rest employed for draft purposes or breeding.

The majority of donkeys were stallions (68.0%); only 16.6% of all the male donkeys included

in the study were gelded. 16.8% of all mares were pregnant at the time of examination. The

majority of donkeys were aged between 3 and 10 years (74.2%) with only 2.2% being older

than 10 years and 2.9% being 6 months or less.

Number of donkeys owned per household: mean=4.8, median=3, mode=1

The number of donkeys were examined from the five different locations visited were:

Krishnagiri (188), Mettuplayam (126), Ooty (14), Theni (91) and Tuticorin (163).

Table 1. Description of gender and work type of donkeys assessed in Tamil Nadu.

Gender

Work Type

Total number of donkeys Pack

(552) Draft (5)

Breeding (24)

Stallion 382 5 9 396 Gelding 79 0 0 79

Mare (non-pregnant)

74 0 15 89

Mare (pregnant) 17 0 1 18

Table 2. Summary of age ranges of donkeys assessed in Tamil Nadu.

Age range (years)

< 0.5 0.5 to 3 3 to 10 >10 Total

Number of donkeys

17

120

432

13

582

Page 3: Evaluation of the prevalence, nature and distribution of

Page 3 of 25

Working conditions

A summary of the working conditions of the donkeys is shown in Table 3. Briefly, owners

reported that the majority of donkeys worked between 2 and 3 days per week (47.4%) for 4-

8 hours per day (88.1%). Most (94.1%) were allowed between 4-6 rests per day. Only 16.4%

were worked between 12pm and 3pm, considered the hottest and most stressful period, and

prohibited by law when temperatures exceed 37 degrees Celsius (7).

Table 3. Summary of working conditions

Working condition parameters Total number of donkeys (%)

Working hours/day < 4 11.9

4-8 88.1

8-12 0

>12 0

Number of working days 0-1 24.6

2-3 4-5 6-7

47.4 25.3 2.7

Worked between 12-3pm Yes

16.4

Number of rest periods/day 1 to 3 5.9

4 to 6 94.1

General health

The data for general health is summarised in Table 4.

The vast majority of donkeys were considered healthy with a body condition score of 3 to 5

(88.3%). Most donkeys had a healthy coat (81.4%), and were alert (98.8%) with a normal

hydration status (90.2%). External signs of disease were uncommon; ectoparasites (0.2%),

faecal staining (a sign of diarrhoea) (0.5%) and abnormal ocular/nasal/vaginal/penile

discharges (2.9%) were rare. Only 3.5% were considered to be suffering from heatstroke,

and 1.3% were lame at the time of examination.

Observation 1

In general, working conditions appear good for the donkeys; an encouraging observation.

This type of data collection can be subject to recall bias (a systematic error caused be

differences in the accuracy of recollection of information) and judgement bias (cognitive

bias whereby people may alter their responses to fit what they think is the correct

answer). Nevertheless, it is likely due to the previous donkey camps organised in these

areas have had a positive influence on attitudes of owners and their subsequent

treatment of their donkeys.

Page 4: Evaluation of the prevalence, nature and distribution of

Page 4 of 25

Table 4. Summary of general health

Health parameter

% of total number of donkeys

Body condition score (BCS)- 1-2 3 to 5

11.7 88.3

Coat condition- Healthy Unhealthy

81.4 18.6

Demeanour- Alert Depressed

98.8 6.2

Hydration status- Normal Abnormal

90.2 9.8

Ectoparasites- Present Absent

0.2 99.8

Faecal staining (perineum)- Yes No

0.5 99.5

Cheek palpation- Normal Abnormal

99.8 0.2

Abnormal discharge (ocular/nasal/vaginal/penile)- Yes No

2.9 97.1

Heatstroke- Yes No

3.5 96.6

Presence of lameness- Yes No

1.3 98.7

Observation 2: Most donkeys appeared in good health, with external signs of disease

uncommon. Again, this likely reflects the positive effects of past donkey camp

involvement in these locations.

Page 5: Evaluation of the prevalence, nature and distribution of

Page 5 of 25

Lesions

One or more lesions were present in a total of 229 donkeys; 294 lesions were recorded in

total, with a prevalence of 50.5% of the total population examined. Causes are summarised

in Figure 1.

Figure 1. Prevalence of lesion types

Mutilations, comprising nose splitting, ear splitting and branding, made up the majority of

lesions (62.8%). The remainder were primarily wounds resulting from the use of a restraining

device (hobbles, 13.8%), an incorrectly-fitting harness (13.4%) or due to fighting (bite

wounds, 7.1%). The ‘other’ lesions, observed rarely, resulted from a variety of causes

including trauma, barbed wire, a road traffic accident, secondary to a wart, tumour or an

unspecified “skin lesion”, or an associated skin reaction to a gunny bag or wet blanket.

Assessment of lesion severities is shown below:

7%

13%

14%

22%

27%

14%

3%Bite wounds

Harness-related wounds

Branding (mutilation)

Ear splitting (mutilation)

Nose splitting (mutilation)

Restraint wounds (hobbles)

Other

Page 6: Evaluation of the prevalence, nature and distribution of

Page 6 of 25

Table 5. Lesion type and severity

Lesion severity

Lesion Type Alopecia Superficial Deep Mutilation Total

Restraint 6 33 2

41

Harness 9 31

40

Bite 7 13 1

21

Mutilation(nose split)

81 81

Mutilation(ear split)

65 65

Mutilation(branding)

1

40 41

Other (barbed wire)

1

1

Other (gunny bag) 1

1 Other (reaction to wet

blanket) 1

1

Other (skin lesion) 1

1

Other (trauma)

1

1

Other (tumour)

2

2

Other (wart) 1

1

Total: 26 82 4 186 298

The majority of ‘non-mutilation’ lesions were classed as superficial (73.2%); 3.6% were

considered deep wounds and 23.2% comprised hair loss only (alopecia).

Some lesion types were associated with specific locations on the body. For example,

specific mutilations (ear and nose-splitting) were region-specific. Branding occurred mainly

on the shoulders, with some involvement of hindquarters. Harness wounds were located

either on the midsection or hindquarters, associated with the contact points of the harness.

Bite wounds were observed at different locations of the body with no prominent predilection

site. Restraint wounds, due to the specific use of hobbles, were noted either on the

hindquarters and legs.

Page 7: Evaluation of the prevalence, nature and distribution of

Page 7 of 25

The clinical nature of the wounds are summarised below:

Table 6. Lesion type and clinical nature

Clinical nature of lesion

Lesion Type Active bleeding Exudation Granulation Scarring

Total

Restraint 2 5 25 9 41

Harness 7 13 12 8 40

Bite 3 2 10 6 21

Mutilation(nose split) 0 0 0 81 81

Mutilation(ear split) 0 1 0 64 65

Mutilation(branding) 0 0 3 38 41

Other (barbed wire) 0 1 0 0 1

Other (gunny bag) 0 0 0 1 1 Other (reaction to wet

blanket) 0 0 0 1 1

Other (skin lesion) 0 0 0 1 1

Other (trauma) 1 0 0 0 1

Other (tumour) 0 2 0 0 2

Other (wart) 0 0 0 1 1

Total: 14 24 50 210 298

The majority of restraint, harness and bite wounds were infected (exudative) or healing

(granulating). A proportion were fresh wounds, with active bleeding. c

Observation 3: Mutilations constitute the majority of lesions observed. The prevalence of

other wounds is low, and generally of a superficial nature. Future, iatrogenic wounds,

whether these be mutilations or lesions caused by restraints or harnesses, are potentially

avoidable with ongoing or enhanced educational interventions and continued focus on

these preventative measures is recommended. This can constitute:

• simple, targeted advice and guidance on how to correctly fit a harness to avoid

pressure points predisposing to injuries

• Alternatives to the use of the popular practice of hobbling or using soft material

and padding to reduce the risk of injuries.

• Wound care and management by owners to improve healing rates.

• Education on the detrimental effects of mutilation and challenging the beliefs held

by owners on the “benefits” on the animals’ ability to perform its duties more

effectively.

Evidence of prevalence reduction will support future interventions by WVS staff in new

locations.

Although out with the scope of this current project, there are previous data available on

wound prevalence in donkeys prior to camp interventions. Therefore, a comparison of the

two data sets can be assessed in the future.

Page 8: Evaluation of the prevalence, nature and distribution of

Page 8 of 25

Owner versus vet assessment of lesion severity

The owner was asked to rate the severity of each lesion on his/her donkeys using the

following criteria: 1-minor; 2- slightly concerning; 3-concerning; 4-serious; 5-life threatening.

The vet assessed the lesion independently using the same criteria. The data are

summarised in Figure 2.

Figure 2. Subjective assessment of lesion severity by the vet and owners

Small differences were observed in the perception of wound severity between owners and

the vet, with a trend for the vet to perceive a wound as more severe than the owner.

However, these differences were not significant statistically at the p=0.05 confidence limits

(Mann-Whitney U test).

0

50

100

150

200

250

300

Minor Slightlyconcerning

Concerning Serious Life threatening

Nu

mb

er

of le

sio

ns

Subjective assessment of lesion severity

Vet scores

Owner scores

Observation 4: As far as the author is aware, there are no studies assessing differences

in the perception of the severity of wounds observed animal owners and vets. In the

present study, it is interesting to note that differences are small but show a tendency for

increased severity score by vets. It is suggested that this is a result of their professional

training and tendency for increased empathy with animals. Despite this, severities appear

similar between both owners and vets in this population, which is an encouraging

observation.

Interactions with owners in previous donkey camps may have positively influenced

owners’ perception of wounds.

Page 9: Evaluation of the prevalence, nature and distribution of

Page 9 of 25

Regional statistics

The number of lesions observed in each of the 5 regions visited is shown below.

Table 7. Percentage of lesions observed by region

Region

Total number of donkeys

examined/region

Number of donkeys with

lesions

Total number of

lesions recorded Yes

(%) No (%)

Krishnagiri 188 61 (32.4)

127 (67.6)

73

Mettupalayam 126 23 (22.2)

103 (81.7)

28

Ooty 14 11 (78.6)

3 (21.4)

16

Theni 91 56 (61.5)

35 (38.5)

78

Tuticorin 163 78 (47.9)

85 (52.1)

95

Total: 582 229 353 290

The prevalence of lesions varied from 22.2% in Mettupalayam to 78.6% in Ooty. (Note that

the number of donkeys examined also varied substantially between regions).

The frequency of lesion types varies regionally. Figure 3 shows the total number of lesions

documented for each region.

Figure 3. Lesion types observed according to location.

0

10

20

30

40

50

60

70

80

90

100

Nu

mb

er o

f le

sio

ns

Location

Other cause

Mutilation(branding)

Mutilation(ear split)

Mutilation(nose split)

Bite

Harness

Restraint

73

28

17

78

97

Page 10: Evaluation of the prevalence, nature and distribution of

Page 10 of 25

(The location of four lesions was not specified therefore these were removed from the data).

Ear and nose splitting mutilations were the most common type of lesion seen in

Mettupalayam, Ooty, Theni and Tuticorin. Interestingly, in Krishnagiri, these two lesions were

uncommon and restraint injuries predominated. Bite wounds and harness wounds were also

observed commonly in this location.

The gender of donkeys for each location is shown below:

Figure 4. Gender of donkeys according to location.

Stallions predominated in Krishnagiri and Tuticorin, whereas geldings were more common in

Theni, and a mixture in Mettupalayam and Ooty. A small percentage of pregnant mares were

noted in Mettupalayam and Tuticorin.

Surgical castrations were performed by WVS vets at previous visits at Theni only, explaining

the increased prevalence of gelded donkeys in this location.

The proportion of bites compared to proportion of stallions in each area was investigated

using Poisson regression modelling, but an association between the two was not seen with

the current data available. The number of locations used was low (5 in total) which is likely to

Observation 5: The prevalence of lesion types shows a degree of regional variation.

Identification of issues per location will enable targeted intervention to further reduce

incidence of specific issues and impact positively on animal welfare.

0

20

40

60

80

100

120

140

160

180

200

Krishnagiri Mettupalayam Ooty Theni Tuticorin

Nu

mb

er

of

do

nke

ys

Location

Gelding

Stallion

Pregnant

Mare

Page 11: Evaluation of the prevalence, nature and distribution of

Page 11 of 25

have limited the data analysis. Collecting data from additional areas would be useful in

further exploring associations.

1. Krishnagiri

188 donkeys were examined. 61 (32%) had one or more lesions; there were 73 lesions

recorded in total. 95.7% of male donkeys were stallions.

Table 8. Lesion types in Krishnagiri

Lesion type Lesion severity Mutilations Number

of lesions

% prevalence of lesions

Alopecia Superficial Deep

Restraint 5 30 1 N/A 36 49.3

Harness 5 7 0 N/A 12 16.4

Bite 4 6 0 N/A 10 13.7

Mutilation(nose split)

N/A N/A N/A 1 1

1.4

Mutilation(ear split) N/A N/A N/A 2 2 2.8

Mutilation(branding) N/A N/A N/A 11 11 15.1

Other cause 1 0 0 N/A 1 1.4

Total 15 43 0 14 73 100

The location of non-mutilation wounds are shown below:

Figure 5. Location of non-mutilation wounds on the body of donkeys from Krishnagiri

Non-mutilations wounds were, in general, the most frequent wound types, and related to

either work performed or methods of restraint. Restraint wounds due to hobbling were the

top cause (49.3%); these were focused primarily on the distal limbs, but were also prominent

0

5

10

15

20

25

Nu

mb

er

of

lesi

on

s

Location of lesion

Other

Restraint

Harness

Bite

Page 12: Evaluation of the prevalence, nature and distribution of

Page 12 of 25

on the proximal hindquarters. In general, wounds severity was mild. Harness and bite

wounds also common; harness wounds were most prevalent on the midsection.

The only mutilation lesion noted with moderate frequency was branding; ear and nose-

splitting were rare in this location.

Observation 6: It is suggested to continue to address hobbling practices and education of

harness fitting in Krishnagiri. In this location, the donkeys are used primarily to transport

sand and are hobbled when left to graze. The method of hobbling results in wounds both

in proximal (thigh) and distal limbs. Whilst focus has been placed on educating owners to

reduce the use of hobbles and to use padding to reduce future wounds, further interaction

and education is needed based on the above results.

Furthermore, examination of the reasons for bite wounds is recommended. The cause of

aggression in equids is multifactorial and can include social isolation (1), invasion of

personal space (2), stallion-mare interactions (5) and chronic pain (6). An assessment of

the possible causes of aggression in this region is recommended in subsequent donkey

camps. Surgical castration would be useful to consider here as one method of reducing

aggression amongst the large population of stallions.

Location: Krishnagiri.

Restraint wound- hindquarters,

bleeding, superficial

Severity scored as 1 (minor) by the

vet and owner

Page 13: Evaluation of the prevalence, nature and distribution of

Page 13 of 25

Location: Krishnagiri.

Restraint wound on leg, granulating,

superficial.

Severity scored as 1(minor) by both

owner and vet

Page 14: Evaluation of the prevalence, nature and distribution of

Page 14 of 25

2. Mettupalayam

126 donkeys were examined. 23 donkeys (9.5%) had lesions. 28 lesions were recorded.

96.7% of male donkeys were stallions.

Table 9. Lesion types in Mettupalayam

Lesion type

Lesion severity

Mutilations Number

of lesions

% prevalence of lesions

Alopecia Superficial Deep

Restraint 1 2 0 0 3 10.7

Harness 0 0 0 0 0 0.0

Bite 0 1 0 0 1 3.6

Mutilation(nose split) 0 0 0 8 8 28.6

Mutilation(ear split) 0 0 0 10 10 35.7

Mutilation(branding) 0 0 0 3 3 10.7

Other cause 0 0 0 3 3 10.7

Total 1 2 0 24 28 100

Figure 6. Location of non-mutilation wounds on the body of donkeys from Mettupalayam

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

Nu

mb

er

of

lesi

on

s

Location of lesion

Other

Restraint

Harness

Bite

Page 15: Evaluation of the prevalence, nature and distribution of

Page 15 of 25

In this location, nose and ear-splitting lesions predominated. Branding was also noted. Out

of the non-mutilation wounds, restraint wounds predominated and were focused on the distal

limbs. Bite wounds were rare.

Location- Mettupalayam. This donkey had multiple lesions comprising nose splitting

and branding mutilations. Note the abnormal eye discharge.

Observation 7: Mutilation practices are the main area of focus with regard to improving

welfare; data does not exist on when these practices were carried out and it is

recommended that future studies record such data to enable incidence to be assessed.

Hobbling practices should also be a focus for continued owner education to reduce lesion

prevalence. Distal limbs are primarily affected.

Location- Mettupalayam

Restraint wounds on distal limbs,

granulating, superficial

Severity scored at 1 (minor) by

vet and owner

Page 16: Evaluation of the prevalence, nature and distribution of

Page 16 of 25

3. Ooty

A small sample of 14 donkeys was examined in Ooty. 11 donkeys (78.6%) had wounds and

there were 17 wounds in total. 100% of male donkeys were stallions.

Table 10. Lesion types in Ooty

Lesion type

Lesion severity

Mutilations Number

of lesions

% prevalence of lesions Alopecia Superficial Deep

Restraint 1 0 0 N/A 1 5.9

Harness 0 1 0 N/A 1 5.9

Bite 1 2 0 N/A 3 17.6

Mutilation(nose split) 0 0 0 8 8 47.1

Mutilation(ear split) 0 0 0 2 2 11.8

Mutilation(branding) 0 0 0 0 0 0

Other cause 2 0 0 0 2 11.8

4 3 0 10 17 100

Figure 7. Location of non-mutilation wounds on the body of donkeys from Ooty

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

Nu

mb

er

of

lesi

on

s

Location of lesion

Other

Restraint

Harness

Bite

Page 17: Evaluation of the prevalence, nature and distribution of

Page 17 of 25

The sample size of donkeys was low in this location. Nose split mutilations were the most

common issue; ear split mutilations, bite, harness and hobble (restraint) lesions were also

documented; bite wounds were the most prevalent non-mutilation wound, and occurred

primarily on the shoulders or midsection.

Observation 8: A targeted focus on continued or enhanced owner education for reducing

future prevalence of mutilations, use of hobbles and incorrectly fitting harnesses is

recommended. As Ooty is a hilly area, it is commonly believed by owners that splitting the

nose of donkeys will improve their performance. These beliefs should continue to be

challenged.

Donkeys in this location are commonly used for breeding purposes. Although sample

size is small, the most frequent non-mutilation wounds are bite wounds. Focusing on

husbandry practices of these donkeys is recommended with the aim of reducing

aggression.

Further data is required to accurately assess welfare issues affecting donkeys in this

location. (Note that this is a small sample size and therefore may not be representative of

the general population in this area).

Location-Ooty

Ear split mutilation (healed)

Page 18: Evaluation of the prevalence, nature and distribution of

Page 18 of 25

4. Theni

91 donkeys were examined and 56 (61.5%) had one or more lesions. There were 78 lesions

recorded in total. 28.7% of donkeys were stallions; 64.8% were gelded.

Table 11. Lesion types in Theni

Lesion type

Lesion severity

Mutilations Number

of lesions

% prevalence of lesions Alopecia Superficial Deep

Restraint 0 0 0 N/A 0 0

Harness 4 20 0 N/A 24 30.8

Bite 0 0 0 N/A 0 0.0

Mutilation(nose split) 0 0 0 26 26 33.3

Mutilation(ear split) 0 0 0 17 17 21.8

Mutilation(branding) 0 0 0 10 10 12.8

Other cause 0 1 0 0 1 1.3

4 21 0 53 78 100

0

2

4

6

8

10

12

14

16

Nu

mb

er

of

lesi

on

s

Location of lesion

Other

Restraint

Harness

Bite

Page 19: Evaluation of the prevalence, nature and distribution of

Page 19 of 25

Figure 8. Location of non-mutilation wounds on the body of donkeys from Theni

Mutilations were a common observation. Harness lesions were noted as the most frequent

non-mutilation wound; these were focused on the shoulders and hindquarters. Hobble and

bite wounds were not documented in these donkeys.

Observation 9: A targeted focus on continued or enhanced owner education for reducing

future prevalence of mutilations is recommended.

These donkeys are used for transportation on hilly terrains. Due to tightening of the

harnesses to prevent slippage on these terrains, the tail area is frequently damaged.

Further reducing harness related injuries are also a target for improvement.

It is interesting to note the absence of bite wounds in relation to the high prevalence of

donkeys that are gelded. As discussed previously, aggression can be multi-factorial, but

further studies into the possible association between geldings and reduced aggression is

recommended and any evidence of such an association would enhance the argument for

performing routine castrations during future donkey camps.

Location-Theni

Harness wound on hindquarters

(tail); exudative, superficial

Scored as 2 (slightly concerning) by

vet and 1 (minor) by the owner

Location-Theni

Harness wound on

hindquarters (tail); granulating,

superficial

Page 20: Evaluation of the prevalence, nature and distribution of

Page 20 of 25

5. Tuticorin

163 donkeys were examined and 78 (47.9%) had one or more lesions; 97 lesions were

observed in total. 92.6% of male donkeys were stallions.

Table 12. Lesion types in Tuticorin

Lesion type

Lesion severity

Mutilations Number

of lesions

% prevalence of lesions Alopecia Superficial Deep

Restraint 0 0 1 N/A 1 1.0

Harness 0 2 0 N/A 2 2.1

Bite 2 3 1 N/A 6 6.2

Mutilation(nose split) 0 0 0 37 37 38.1

Mutilation(ear split) 0 0 0 34 34 35.1

Mutilation(branding) 0 1 0 14 15 15.4

Other cause 1 1 0 0 2 2.1

3 7 2 85 97 100

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Figure 9. Location of non-mutilation wounds on the body of donkeys from Tuticorin.

All forms of branding were observed, with ear and nose splitting the most common. The

prevalence of non-mutilation wounds were low with bite wounds were the most common.

Hobble wounds were rare (hobbling is not practiced in this area).

0

0.5

1

1.5

2

2.5

3

3.5N

um

be

r o

f le

sio

ns

Location of lesion

Other

Restraint

Harness

Bite

Observation 9: Efforts should be focused in addressing mutilation wounds in this location

and general focus on reducing bite wounds by identifying potential causes.

Location- Tuticorin

Nose splitting (healed)

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Limitations to the study

There were some limitations to the study. During the period of app design, it became clear

that including questionnaires on owners’ views and practices with regard to donkey welfare

would not be practical in the field setting. It was not possible to include these questions

whilst ensuring all donkeys were assessed and treated within defined timeframes of the

donkey camps. Therefore, the data collection was limited to health and welfare parameters

collected by the veterinarian, and one question involving owner severity assessment of

wounds on their animals, to compare against the vet’s assessment. (this was relayed to

BVA Animal Welfare Foundation Trustees at the time that the limitation was discovered).

Conclusion

This study focused on assessing the prevalence, nature and distribution of skin wounds in

donkeys in 5 locations in Tamil Nadu, India. Data was collected using a smartphone app

whilst undertaking routine assessments and treatments of donkeys in each location. The

study aim was to understand the welfare issue affecting donkeys with specific focus on

wounds, to enable future, targeted interventions on those issues which affect welfare.

Results showed that overall welfare of donkeys in the five locations was of a reasonable

standard. This is unsurprising and likely reflects the interventions and education provided by

WVS staff in previous donkey camps. Issues were identified both with mutilations practices

and with wounds resulting from incorrectly fitting harnesses and the use of hobbles as

restraints. Although donkey numbers were low in some locations, the data demonstrates that

welfare issues vary regionally, and that recognition of region-specific practices enables

targeted owner education.

There was evidence of a range of mutilation practices that had occurred previously in all five

locations. Although information on when they were carried out was not available, the data

highlights their common occurrence and that continued, targeted owner education is

required to highlight the pointless nature and significant welfare issues associated with such

practices. More comprehensive data collection can be addressed in future studies.

The other main focus for improvement is continuation of education of owners with respect to

restraint practices (hobbles) and harness use. The use of hobbles has been shown to result

in a high prevalence of wounds in India, reported as 81% in one study (8). Their use can

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negatively impact on multiple aspects of welfare; this includes prevention of fully accessing

food and water; cause of pain, injury and distress; and restricting the ability to express

natural behaviours e.g. grazing, socialising. Ways of avoiding or reducing the use of hobbles

should continue to be encouraged. The use of an alternative method of restraint is

recommended, for example head collar or neck rope. These may be more challenging in

animals that are not used to being handled or are scared due to previous, negative

incidences. Encouragement should be given to owners to handle and treat their animals with

respect to enable effective training and a good relationship between animal and owner.

If hobbles are used as a way to attempt to reduce the incidence of aggression, alternatives

can be suggested, for example castration of males. A focus on castration is already being

achieved in donkey camps run in this area, and further data collection will help to assess the

positive effects. As causes of aggression can be multifactorial, a comprehensive approach

to assessing the causes of aggression could be considered in areas where fight-related

wounds are high.

Where alternative methods to hobbling are difficult to implement, owners can be encouraged

to use soft or padded materials that do not result in painful wounds.

Similarly, simple techniques such as soft material or padding under pressure points to

reduce the frequency of harness-related injuries can be encouraged. The aim is to prevent

wounds altogether, as active wounds that are continuously disrupted by harness rubbing are

likely to be difficult to treat.

The study design enabled a wide range of data to be collected easily using the smartphone

app. This is a valuable observation and proves that this method is suitable for future

assessments requiring “in-field” data collection, particularly in new locations that the charity

may visit in future ventures.

This particular study was constrained by locations that had already been visited by the WVS

in previous donkey camps. As a result, data was collected on donkeys which had been

treated previously and where owner education had already been carried out. Therefore, this

population did not likely represent the general population of Indian donkeys and explains the

improved health and welfare of donkeys in this study compared to other published studies

(9, 10). However, data collected showed that improvements in donkey welfare had likely

been achieved through previous interventions and highlighted the ongoing issues still facing

donkeys with respect to specific wounds, both mutilations and non-mutilations. The success

of such data collection using the smart phone app, and the improvements found, indicates

that the charity has had a positive impact on donkey welfare through their donkey camps

programmes.

In summary, this study has (1) provided valuable information on lesions and overall welfare

issues faced by donkeys in specific regions in Tamilnadu which will enable future, targeted

educational programmes to improve welfare; (2) highlighted the ongoing, positive work

carried out by the WVS in improving donkey welfare and (3) provided proof of principle that

collection of data on donkeys in Tamilnadu in field conditions is achievable using a

smartphone app, which will enable further, more in depth welfare studies to be carried out.

There is the aim to design future, larger scale, welfare-focused studies in additional locations

identified by the WVS staff, whereby baseline data will be collected prior to interventions,

enabling direct comparisons and further understand the effectiveness of the donkey camps

currently carried out by the charity.

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18

18th November 2017

Dr Emma Rayner, BSc(Hons), BVetMed, MSc IAWEL, FRCPath, MRCVS

18th November 2017

Dr Ilona Otter, DVM, MSc, MRCVS

Director, Worldwide Veterinary Service, India

References

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