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Beschreibung

A guide to the care and treatment of deer for veterinary professionals

Deer Veterinary Medicine is an essential reference for veterinary professionals preparing for deer encounters. Rooted in extensive field experience, the contributions from a range of authors provide details of common conditions across multiple deer species and the knowledge required by the veterinary professionals who deal with them. The book considers the different contexts where deer are encountered, including wild populations, and deer held in captivity (as farm, park and zoo collections).

The chapters topics range from handling and sedating deer through to nutrition and postmortem examination and pathology. They cover key body systems including the gut, nervous, ocular and respiratory systems, and the skin.

Deer Veterinary Medicine readers will also find:

  • Detailed consideration of the use of sedation in deer, providing analgesia and methods of euthanasia.
  • Coverage of species including red, roe, fallow, water deer, Reeves’ muntjac, reindeer and white-tailed deer.
  • Coverage of veterinary interventions for reproductive purposes.
  • Detailed consideration of the management of parasitic diseases.
  • Detailed consideration of notifiable (including TB and CWD) and zoonotic diseases (including E. coli and cryptosporidiosis).
  • A detailed drug formulary including, where available, evidence from published studies.

Edited by the past president of the British Deer Veterinary Association (BDVA) this book is a fitting successor to Management and Diseases of Deer: A Handbook for Veterinary Surgeons, last published in 1994 by the Veterinary Deer Society (now the BDVA). Synthesizing key contributions by a range of experts from Europe and the US, the new Deer Veterinary Medicine is ideal for veterinarians, veterinary surgeons and veterinary students, as well as readers interested in the management of captive and wild deer.

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Table of Contents

Cover

Table of Contents

Title Page

Copyright

Dedication

List of Contributors

Foreword

Preface

Acknowledgements

List of Tables

List of Illustrations/Images

Chapter 1: Introduction to Cervids

Introduction

History

Deer Species

Axis

Barasingha

Fallow Deer

Mule Deer

Muntjac (Reeves’)

Père David’s Deer

Red Deer

Reindeer

Roe Deer

Sika Deer

Wapiti

Water Deer

White-tailed Deer

Deer in Ireland

Further Reading

Chapter 2: Managing, Handling and Moving Deer

Introduction

Handling Pens

Farmed Deer Restraint

Transport

Housing

Further Reading/Guidance

Chapter 3: Analgesia, euthanasia, restraint and sedation in deer

Introduction

Considerations for the Restraint and Capture of Deer

Capture Myopathy or Neuropathy

Legal Considerations in the United Kingdom

Principles of Remote Chemical Injection

Chemical Restraint of Deer

Physical Capture of Deer

Analgesia in Deer Species

Euthanasia of Deer

References

Chapter 4: Surgical Interventions and Imaging Methods in Deer

Introduction

Principles Behind Surgical Interventions

Vasectomy

Castration

Surgery of Antlers

Local Anaesthetics and Nerve Blocks for Antlers

Appropriate Imaging Modalities

References

Chapter 5: Deer in Deer Parks

The Species in Deer Parks

Population Densities

Supplementary Winter Feeding

Routine Park Management

Culling

Veterinary Challenges

Trace Elements and Park Deer

Winter Die-off Syndrome

Statutory Regulation

References

Chapter 6: An Overview of Red Deer Farming in the United Kingdom

Introduction

Calving

Calf Rearing and Using Anthelmintics

Calving Groups

Herd Management Post-rut

References

Chapter 7: Wild Deer in the UK (Health and Welfare, Deer-Vehicle Collisions and Disease Surveillance)

7.1 Wild deer in Great Britain–health and welfare topics

Statutory Regulation of Wild Deer and Their Management in the United Kingdom

Deer Abundance and Distribution in the United Kingdom

Qualifications for Deer Management in the United Kingdom

Veterinary Involvement in the UK Deer Sector

Deer Management in European Countries Other than the United Kingdom

7.2 Wild Deer and Deer–Vehicle Collisions

Introduction

Driver Advice

Responding to DVCs

Legal, Welfare and Safety Issues

7.3 Wild Deer and Disease Surveillance for Pestiviruses and Schmallenberg Virus

Pestiviruses

Schmallenberg Virus

Appendix: European Roe Deer (

Capreolus capreolus

) Disease Surveillance

References

Weblinks for Legislation Relating to Wild Deer

Further Reading (for Deer–Vehicle Collisions)

Website resources and legislation related to DVCs

Legislation

Best Practice guidance

Chapter 8: Venison in the United Kingdom

Legislation

Use of Medical Substances and Consequences for the Food Chain

Slaughter

Primary Production

Game Larders and Collection Centres for Wild Game

Approvals

Export of Venison Meat, Animal By-products and Trophies to EU and Non-EU Countries

Imports of Venison

Notifiable Diseases

References

Chapter 9: Rehabilitation of Deer

Rehabilitation of Wild Deer

Legal Considerations

Medical and Surgical Interventions for Trauma Cases

Orthopaedic Injuries

Soft Tissue Trauma

Treatment of Sick Deer

Management of Orphans

Identification of Young Zoo Deer

Initial Assessment of Orphaned Deer

Failure of Passive Transfer

Neonatal Enteritis Complex

Feeding Orphans

Release of Rehabilitated Orphaned Deer into the Wild and Deer Parks

References

Chapter 10: Antlers

Antler Growth

Managing Perruques

Non-hormonal Factors Influencing Antler Growth

Orphan Male Deer Calves

Reindeer

References

Chapter 11: Reproduction in Deer

Introduction

Seasonality

Rutting Behaviour

Oestrus Cycle

Pregnancy

Parturition

Species-specific Considerations

Pregnancy Diagnosis

Semen Collection and Cryopreservation

Artificial Insemination

Embryo Transfer

In Vitro Fertilisation

Hybridisation of Deer Through Artificial Breeding

Diseases Affecting Deer Reproduction

References

Chapter 12: Nutrition of Deer

Introduction

Understanding the Beast

Nutrient Requirements

Feed Composition

Feeding Management

Nutritional Support

Nutritional Diseases

Nutritional Assessment

References

Chapter 13: Notifiable Diseases in Deer – Chronic Wasting Disease

Introduction

Cause

Clinical Signs

Genetics of Susceptibility

CWD in Europe

Zoonotic Potential of CWD

Further Reading/Selected References

Chapter 14: Notifiable Diseases in Deer –

Mycobacterium bovis

Infection

Introduction and Background

Clinical Signs

Postmortem Findings

Differential Diagnoses

Wild Deer and Livestock – Epidemiology

Diagnosis and Screening of Living Deer

Laboratory Aids to Diagnosis

Management and Treatment

A Note on

Mycobacterium bovis

Infection in Deer in Ireland – Jim Walsh

References

Further Information About Mycobacterial Infection

Chapter 15: Serological Methods and

Mycobacterium bovis

Infection in Deer

Introduction

TB Antibody Test Evaluation in Deer

DPP VetTB Lateral Flow Test

Comparative PPD ELISA

Enferplex Cervid TB ELISA

IDEXX

Mycobacterium bovis

ELISA

Study Deer

Study Results

References

Chapter 16: Notifiable Diseases in Deer

Anthrax

Aujeszky’s Disease

Bluetongue and Epizootic Haemorrhagic Disease

Brucellosis

Foot and Mouth Disease

Rabies

References

Chapter 17: Malignant Catarrhal Fever in Deer

Introduction

Causative Agents

Clinical Signs

Pathology

Epidemiology

Diagnosis

Differential Diagnosis

Control

Future Developments

References

Chapter 18: Gastrointestinal Diseases in Deer –

Mycobacterium avium

subspecies

paratuberculosis

and Johne’s Disease

Background

Disease Progression and Clinical Signs

Gross Pathology, Histopathology and Immunology

Diagnosis

Transmission

Prevalence, Surveillance and Epidemiology

JD Management Programmes for Deer – Prevention and Control

Conclusion

References

Chapter 19: Gastrointestinal and Hepatic Parasite Diseases in Deer

Introduction to Gastrointestinal Roundworms

Introduction to Trematodes

Presenting Clinical Signs

Diagnostic Methods/Investigative Tools

Treatments

Treatment Failures

Management

References

Chapter 20: Gastrointestinal Diseases in Deer

Clostridial Diseases

Lumpy Jaw

Yersiniosis

References

Chapter 21: Zoonotic Agents and Deer (Cryptosporidiosis, Salmonellosis, Toxoplasmosis and SARS-CoV-2)

21.1

Cryptosporidium

spp.

Background and Transmission Routes

21.2 Salmonellosis

Clinical Signs

Pathology

Diagnosis

Treatment

21.3 Toxoplasmosis

21.4 SARS-CoV-2 in Deer

References

Chapter 22: Shiga-toxin-producing

Escherichia coli

in Deer

Background

Prevalence of STEC in Deer

Disease and Transmission

Mitigation

Future Directions and Research Needs

References

Chapter 23: Neurological Diseases in Deer

Major Diseases

Minor Conditions

Further Reading

Chapter 24: Respiratory Parasite Diseases in Deer

Introduction to Pulmonary Worms

Dictyocaulus

spp.

Protostrongylid Parasites:

Protostrongylus

spp.,

Muellerius capillaris, Cystocaulus ocreatus, Neostrongylus linearis, Varestrongylus capreoli

(in Roe Deer)

Varestrongylus sagittatus

(in Red and Fallow Deer)

Further Protostrongylids:

Elaphostrongylus

spp. and

Parelaphostrongylus

spp.

Presenting Clinical Signs

Diagnostic Methods/Investigative Tools

Treatment

Management

References

Chapter 25: Respiratory Diseases in Deer – Bacterial, Fungal and Viral

Introduction

Bacterial Diseases

Viral Diseases

Fungal Diseases

Parasitic Diseases

Other Diseases

References

Chapter 26: Skin Diseases in Deer

Introduction

An Approach to Deer with Signs of Skin Disease

Major Topics – Warble, Papillomatosis and Parapox Virus

Minor Topics

A Note on Treating Ectoparasites in Deer

Case Scenario

References

Chapter 27: Deer Ophthalmology – A Practical Approach to Deer Ophthalmic Examination

Introduction

Preparation for Examination and Deer Restraint

Step-by-step Guide to the Ophthalmic Examination

Smartphone Photography

Clinical Signs and Treatment Options

Common Findings and Their Significance

References

Chapter 28: Lameness and Hoof Problems in Deer

Fractures and Dislocations

Closantel Toxicity

Necrobacillosis/Fusiformis Infection

Overgrown Hooves (Aladdin’s Slippers)

Enzootic Ataxia

Treponeme-associated Hoof Disease

Yersinia-related Septic Arthritis

References

Chapter 29: Vector-borne Infections in Deer – Threat to Deer Health and Role of Deer in Transmission of Diseases of Veterinary and Medical Importance

Anaplasma phagocytophilum

Babesia

Species

Borrelia burgdorferi

Bartonella

Species

Louping ill virus

Tick-borne encephalitis virus

Further Information About Ticks and Tick-borne Diseases

References

Chapter 30: Muntjac (

Muntiacus reevesi

)

Origins in England

Ireland

Muntjac in Continental Europe

Habitats

Chromosome Number

Body Size

Skull

Teeth

Antler Cycle

Scent Glands

Reproduction

Life Span

Diseases

Abnormalities Observed

Parasites

The Stomach

Faecal Pellets

Captivity

Haematology and Clinical Chemistry Values for Reeves’ Muntjac

References

Chapter 31: Reindeer

Introduction

Legislation

Nutrition

Diseases

Biochemistry, Haematology and Trace Elements

References

Chapter 32: An Overview of Diseases of Farmed White-tailed Deer

Introduction

Respiratory Diseases

Gastrointestinal Diseases

Major Diseases

Neurological Diseases

Diseases of the Skin

Toxicities

References

Chapter 33: Anatomical Pathology and Deer – A Guide to Postmortem Examination and Pathology

Postmortem Examination: Who, Where and Why?

Postmortem Examination Procedure

References

Chapter 34: Cervine Formulary

Introduction

References

Index

End User License Agreement

List of Illustrations

Chapter 1

Figure 1.1 Axis deer in the foreground with four white fallow deer in the backg...

Figure 1.2 Axis deer (Jim Walsh).

Figure 1.3 Barasingha deer (Jim Walsh).

Figure 1.4 Barasingha deer (Jim Walsh).

Figure 1.5 A leucistic fallow buck with a recent injury associated with rutting...

Figure 1.6a Fallow does and fawns (including common, melanistic and menil with a ...

Figure 1.6b Fallow bucks - common, melanistic and menil colour forms. (Peter Green).

Figure 1.7 Fallow deer antler (Peter Green).

Figure 1.8 Mule deer (Jim Walsh).

Figure 1.9 Mule deer (US National Park Service, Jacob W. Frank).

Figure 1.10 Muntjac (Jim Walsh).

Figure 1.11 Père David’s stags in velvet (Peter Green).

Figure 1.12 Père David deer (Jim Walsh).

Figure 1.13 Red hind and calf (Peter Green).

Figure 1.14 Red stag (Peter Green).

Figure 1.15 Red deer antler (Peter Green).

Figure 1.16 Reindeer bull (Sam Ecroyd).

Figure 1.17 Reindeer calf (Alex Smith).

Figure 1.18 Female reindeer and their calves in winter (Alex Smith).

Figure 1.19 Reindeer antler (Peter Green).

Figure 1.20 Roe buck (Peter Green).

Figure 1.21 Roe doe (Peter Green).

Figure 1.22 Roe deer antler (Peter Green).

Figure 1.23 Sika deer (Jim Walsh).

Figure 1.24 Wapiti hind (Jim Walsh).

Figure 1.25 Wapiti in Canada (Peter Green).

Figure 1.26a A water deer fawn.

Figure 1.26b A water deer buck.

Figure 1.27 White-tailed deer does (USDA. Agricultural Research Service).

Figure 1.28 White-tailed deer buck (USDA. Agricultural Research Service).

Chapter 4

Figure 4.1 A view of a reindeer being prepared for a computed tomography (CT) s...

Chapter 8

Figure 8.1 An example of a hunter’s declaration.

Figure 8.2 (a) A well-kept game larder for deer and (b) an onward transport ....

Figure 8.3 Routes for the supply of wild game including the use of collection c...

Chapter 10

Figure 10.1 Illustrating the terms used to describe an antler (Peter Green).

Figure 10.2 (a) Red deer with cast antler showing the pedicle from where the new...

Figure 10.3 (a) Perruque in a red deer castrate (an uncommon condition in this species).

Figure 10.4 The seasonal pattern of antler growth in male and female reindeer in...

Figure 10.5 Hyperplastic fibrous changes to velvet skin (antleroma) in a castrat...

Figure 10.6 A pair of buttons cast from a de-antlered red stag. The antler surfac...

Chapter 12

Figure 12.1 Cumulative fetal weight for white-tailed deer fetus throughout gesta...

Figure 12.2 Wild white-tailed deer foraging in Valley Forge, Pennsylvania, USA,..

Chapter 13

Figure 13.1 Excess salivation in an elk (

Cervus elaphus canadensis

) with CWD.

Figure 13.2 Distribution of classical and atypical cases of CWD in reindeer, moo...

Chapter 14

Figure 14.1 Fallow buck with TB; sanginous nasal discharge (Peter Green).

Figure 14.2 Fallow buck in poor condition due to TB (Peter Green).

Figure 14.3 TB abscesses in red hind lung. Not walled off (Peter Green).

Figure 14.4 TB abscesses in mesenteric chain (Peter Green).

Figure 14.5 Miliary lesions of TB on the rumen serosa (Peter Green).

Figure 14.6 TB abscesses of bronchial lymph nodes (Peter Green).

Figure 14.7 Red hind with TB abscesses visible in the retropharyngeal/throat are...

Figure 14.8 Multiple TB abscesses in omentum (Peter Green).

Figure 14.9 TB abscesses in diaphragm and liver (Peter Green).

Figure 14.10 Encapsulated firm abscess in lung tissue (Alex Barlow).

Figure 14.11 Small firm abscess in the mesenteric lymph node (Alex Barlow).

Figure 14.12 Soft custard-like abscess material adjacent in popliteal lymph node ...

Figure 14.13 Large firm gritty abscess in an inguinal lymph node (Alex Barlow).

Figure 14.14 Brown liquid abscess in a popliteal lymph node (Alex Barlow).

Figure 14.15 Multiple firm to gritty abscess lesions in mammary gland tissue (TB ...

Figure 14.16 Multifocal variably sized soft TB lesions in the liver (Alex Barlow).

Chapter 17

Figure 17.1 Phylogenetic tree of MCF viruses and herpes viruses infecting deer. ...

Chapter 18

Figure 18.1 The life cycle of infection and transmission of Johne’s disease in deer.

Figure 18.2 Postmortem image showing the corrugated appearance of the mucosa of ...

Figure 18.3 Histological findings in the gut of sheep with Johne’s disease (infe...

Chapter 19

Figure 19.1 Individual faecal egg counts from farmed red deer (McGregor 2024).

Figure 19.2 (a) Low power image of a faecal sample containing liver and rumen fl...

Figure 19.3 (a) Whole pluck from red deer, note marked cirrhosis with areas of a..

Chapter 24

Figure 24.1

Pilobolus

fungi with water droplets (©Moredun Research...

Figure 24.2 (a) Incised lung nodules associated with

Protostrongylus

spp...

Figure 24.3 (a)

Dictyocaulus viviparus

larvae isolated from faeces. Note ..

Figure 24.4 Posterior (Top row)* and full body (bottom row)

#

line drawings of lu...

Figure 24.5 Adult

Dictyocaulus

spp. in the opened trachea of a red deer.

Figure 24.6 Adult

Dictyocaulus eckerti

showing kidney-shaped buccal ring.

Chapter 25

Figure 25.1 (a) Postmortem examination of a reindeer with extensive

Cephenemy

...

Chapter 26

Figure 26.1 (a–c) Warble fly lesions due to

Hypoderma diana

in a ..

Figure 26.2 (a) Papillomatous lesions in a red deer (Photo by John Fletcher)...

Figure 26.3 Low power histology image (haematoxylin & eosin) of skin,...

Figure 26.4 (a, b) Red deer hind with severe cutaneous ulceration due to cutaneo...

Chapter 27

Figure 27.1 Six-year-old white-tailed deer (

Odocoileus virginianus

) buck ..

Figure 27.2 White-tailed deer buck immobilised by darting. Note the black eye co...

Figure 27.3 Distant examination of a herd of fallow deer. Image taken with an iP...

Figure 27.4 Assessment of bilateral ocular and periocular symmetry.

Figure 27.5 The meibomian gland openings are readily seen along both the upper...

Figure 27.6 Multiple periorbital skin lacerations in a young white-tailed deer...

Figure 27.7 (a–c) Series of still image screenshots from a short iPhone...

Figure 27.8 (a) Direct retroillumination being performed in a young white-tailed...

Figure 27.9 Screenshots from a short video sequence taken with an iPhone 15 Pro...

Figure 27.10 Topical application of 1% tropicamide ophthalmic solution is achieve...

Figure 27.11 Direct ophthalmoscopy being performed by one of the authors (T.P.)...

Figure 27.12 (a) Fundus images being captured using a Kowa Genesis-D handheld di..

Figure 27.13 (a) Tapetal reflex obtained by shining a Finoff transilluminator in..

Figure 27.14 (a) Schirmer tear test (STT) strips placed bilaterally within the t..

Figure 27.15 Rebound tonometry being performed on a six-year-old white-tailed de..

Figure 27.16 Two white-tailed deer fawns under sedation. The eyes are covered to..

Figure 27.17 Field recovery of a white-tailed deer buck following sedation.

Figure 27.18 Overview of a group of white-tailed deer fawns. All eyes are open a..

Chapter 28

Figure 28.1 Aladdin’s slipper feet in a red hind (Peter Green).

Figure 28.2 Field case of fallow deer with Treponema Associated Hoof Dermatitis ...

Figure 28.3 Field case of fallow deer with Treponema Associated Hoof Dermatitis ...

Figure 28.4 Postmortem image of a focal erosion on the palmar interdigital aspec...

Figure 28.5 Postmortem image of a focal erosion on the palmar-lateral aspect of ...

Figure 28.6 Postmortem image of a focal erosion on the dorsal-lateral aspect of ...

Figure 28.7

Yersinia

septic arthritis muntjac (Peter Green).

Figure 28.8

Yersinia

septic arthritis and carpal valgus muntjac (Peter Green).

Figure 28.9 Radiograph of

Yersinia

septic arthritis in a fallow deer (Peter Green.

Figure 28.10 Boiled out elbow joint of

Yersinia

septic arthritis in a muntjac (Pe...

Chapter 30

Figure 30.1 Muntjac buck skull with pre-orbital fossa (Norma Chapman).

Figure 30.2 Muntjac buck (Photo by Arthur Rivett).

Chapter 31

Figure 31.1 Reindeer at postmortem examination with a 10-day history of corneal ...

Figure 31.2 (a and b) Postmortem examination of a pregnant reindeer with death a...

Chapter 32

Figure 32.1 Medial retropharyngeal lymph nodes from

Mycobacterium bovis

-infected...

Figure 32.2 Heart from white-tailed deer. Cause of death: epizootic haemorrhagic...

Figure 32.3 Adductor muscles from white-tailed deer. Cause of death: capture myo...

Chapter 33

Figure 33.1 Ventral view of the neck indicating the area of incision (arrow) thr...

Figure 33.2

Dictyocaulus

spp. in the trachea of a red deer.

Figure 33.3 (a) Recommended dissection lines for the heart. (b) Opened right ven..

Figure 33.4 Opened left ventricle for examination of the left atrioventricular a...

Figure 33.5 ‘Chicken-fat clot’, a common incidental postmortem finding in the heart.

Figure 33.6 Ileum of a cow with Johne’s disease. Lesions in deer may resemble th...

Figure 33.7 Suggested cuts for removal of the brain. Asterisk – the tentorium ce...

List of Tables

Chapter 1

Table 1.1 A taxonomy of deer species.

Chapter 2

Table 2.1 Space allocation for housing deer at different life stages.

Chapter 5

Table 5.1 Trace element ranges for park deer.

Chapter 6

Table 6.1 Wormer categories (for gut worms, lungworm and liver fluke; see Chap...

Chapter 7

Table 7.1 A brief outline of deer management and varying statutory regulations...

Table 7.2 A summary of disease surveillance reports for roe deer in selected E...

Chapter 8

Table 8.1 Legislation applicable to foodstuffs in Great Britain.

Chapter 11

Table 11.1 Breeding and antler windows for UK deer species across the calendar year.

Table 11.2 Approximate measurements used in the fetal ageing of red deer (after...

Chapter 12

Table 12.1 Comparison of ruminant species relative to feeding pattern (based on...

Table 12.2 Predicted dietary energy and protein requirements (dry matter basis)...

Table 12.3 Predicted dietary calcium and phosphorus and vitamins A and E requir...

Table 12.4 Suggested dietary mineral concentrations (dry matter basis) for capt...

Chapter 14

Table 14.1 Prevalence of

Mycobacterium bovis

infection in English wild deer sam...

Chapter 15

Table 15.1 Summary of antibody test sensitivity and specificity.

Table 15.2 Antibody test comparisons using Kappa and McNemar statistical tests.

Table 15.3 Sensitivity and specificity of deer antibody tests at APHA.

Chapter 16

Table 16.1 Summary of findings in deer species infected with foot and mouth vir...

Chapter 18

Table 18.1 Deer species and location where infection with

Mycobacterium avium

s...

Chapter 19

Table 19.1 Species of roundworms identified in wild deer across Europe.

Table 19.2 Possible reasons for animals being underdosed.

Chapter 24

Table 24.1 Species of pulmonary-associated parasites identified in wild deer (a...

Chapter 26

Table 26.1 Diagnostic tests for investigating skin disease.

Chapter 27

Table 27.1 Diagnostic instruments and supplies necessary to perform an ophthalm...

Table 27.2 Intraocular pressure (IOP) and reflex tear production values of vari...

Chapter 30

Table 30.1 Haematological values for combined free-living and captive populations.

Table 30.2 Biochemical values for the combined free-living and captive populations.

Table 30.3 Haematological values for the free-living population.

Table 30.4 Haematological values for the captive population.

Chapter 31

Table 31.1 Summary of analyses of reindeer samples for assessing selenium and v...

Chapter 33

Table 33.1 Equipment lists.

Chapter 34

Table 34.1 Antimicrobials.

Table 34.2 Anthelmintics, coccidiostats and ectoparasiticides.

Table 34.3 Non-steroidal anti-inflammatory agents.

Table 34.4 Glucocorticoids.

Table 34.5 Sedatives and anaesthetic agents.

Table 34.6 Sedation reversal agents.

Table 34.7 Reproductive hormones.

Table 34.8 Vitamins, minerals and trace-elements.

Table 34.9 Miscellaneous.

Guide

Cover

Table of Contents

Title Page

Copyright

Dedication

List of Contributors

Foreword

Preface

Acknowledgements

List of Tables

List of Illustrations/Images

Begin Reading

Index

End User License Agreement

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Deer Veterinary Medicine

Edited by Aiden P. Foster

with the British Deer Veterinary Association

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Dedication

This book is dedicated to the authors and editors of the Veterinary Deer Society book entitled Management and Diseases of Deer (1994), which was our inspiration. We are here today because we stand on the shoulders of these experts.

List of Contributors

Alex Barlow

Wildlife Network for Disease Surveillance

Rookham Cottage

Dursdon Drove, Wells

Somerset

UK

University of Bristol

Bristol Veterinary School, Langford House, Langford, North Somerset

UK

Dave J. Bartley

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Richard J. Birtles

School of Science, Engineering and Environment

University of Salford

Salford

UK

Paola Boggiatto

Infectious Bacterial Diseases of Livestock Research Unit

National Animal Disease Center

Ames, IA

USA

Gareth Boyes

Ark Vet Centre Limited

Lockerbie, Dumfriesshire

UK

Norma Chapman

Larkmead

The Street, Barton Mills, Bury St. Edmunds

Suffolk

UK

Jamie Cordery

Forestry Commission (Retired)

Bucks Horn Oak

Farnham, Surrey

UK

Agnieszka Dabrowska

Food Standards Agency

Foss House, Kings Pool, Peasholme Green

York

UK

Mark P. Dagleish

School of Biodiversity, One Health and Veterinary Medicine

University of Glasgow

Glasgow

UK

Sam Ecroyd

Tyndale Deer Vets

Lower Wick

Dursley, Gloucestershire

UK

Stephen Fitzgerald

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Aiden P. Foster

University of Bristol

Bristol Veterinary School, Langford House, Langford, North Somerset

UK

Peter Green

South Woolley Farm

Shirwell, Barnstaple

Devon

UK

Clare Hamilton

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Kit Heawood

Tyndale Deer Vets

Lower Wick

Dursley, Gloucestershire

UK

Maya Holding

Virology and Pathogenesis Group

UK Health Security Agency

Porton Down, Salisbury

Wiltshire

UK

Carly Kanipe

Infectious Bacterial Diseases of Livestock Research Unit

National Animal Disease Center

Ames, IA

USA

Carmen Lillo-Llopis

Food Standards Agency

Foss House, Kings Pool, Peasholme Green

York

UK

Jonas Malmsten

Swedish National Deer Health Services

Vallentuna

Sweden

Richard J. McMullen Jr.

Vetsuisse Faculty

Equine Department

University of Zurich

Zurich

Switzerland

Department of Clinical Sciences

College of Veterinary Medicine

Auburn University

Auburn, AL

USA

Tom N. McNeilly

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Elena McWatt (nee Gafenco)

Food Standards Scotland

Pilgrim House, Old Ford Road

Aberdeen

UK

Ellie L. Milnes

Wildlife Health, Pathobiology and Population Sciences

Royal Veterinary College

University of London

Hertfordshire

UK

Centre for Veterinary Wildlife Research

Faculty of Veterinary Science

University of Pretoria

Onderstepoort

South Africa

Sian Mitchell

Animal and Plant Health Agency

Carmarthen Veterinary Investigation Centre

Job’s Well Road

Johnstown

Carmarthen

UK

Mitchell Palmer

Infectious Bacterial Diseases of Livestock Research Unit

National Animal Disease Center

Ames, IA

USA

Thomas Passler

Department of Clinical Sciences

Auburn University College of Veterinary Medicine

Auburn, AL

USA

Shelley Rhodes

APHA Weybridge

Surrey

UK

Rachel R. Richardson

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Amy L. Robinson

School of Biodiversity, One Health and Veterinary Medicine

University of Glasgow

Glasgow

UK

Mara Rocchi

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Molly Ruder

Watatunga Wildlife Reserve

Kings Lynn, Norfolk

UK

George C. Russell

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Philip Skuce

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Robert J. Van Saun

Department of Veterinary and Biomedical Science

College of Agricultural Science

Pennsylvania State University

University Park, PA

USA

Prerna Vohra

Institute of Immunology and Infection Research

University of Edinburgh

Ashworth Laboratories

Edinburgh

UK

Don Wagner

Department of Animal Science

College of Agricultural Science

Pennsylvania State University

University Park, PA

USA

Jim Walsh

Sika Lodge

Glencullen, Dublin

Ireland

Craig A. Watkins

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Beth Wells

Moredun Research Institute

Pentlands Science Park

Bush Loan, Penicuik

Midlothian

UK

Foreword

This book is a triumph and it is a great privilege to have been asked to write its foreword. That so many contributors could find motivation to write in their own time, in their busy lives, is a testament to their enthusiasm, especially to that of Aiden Foster, who has been the editor and organising force.

Its previous iteration, published in 1986, grew out of the Veterinary Deer Society, which today has been renamed as the British Deer Veterinary Association. The Society arose from a conversation that I had with Tom Alexander on the back of a trailer being pulled slowly around Studley Royal park as we tried to approach deer closely enough for me to dart them, initially with a crossbow. That crossbow was the brainchild of the inspirational and brilliant scientist Roger Short. In 1969 I had the extreme good fortune to become a member of a team from the Veterinary School at Cambridge, led by Roger, working with red deer on the Isle of Rum. As well as the wild deer, myself, Gerald Lincoln and Fiona Guinness used a group of hand-reared red deer females to elucidate their oestrous cycle and gestation length and unpick the ways in which testosterone controlled antler growth and rutting behaviour.

I cite this because it is remarkable that, until then, these basic facts were not clearly understood. In America, Caton (1877) had written a scientific treatise about deer and even speculated on their domestication and, in Scotland, Henry Evans (1890) and Fraser Darling (1937) had described the social behaviour and performance of wild red deer in the Highlands and Islands. However, it was not until our work on Rum, followed closely by that on the experimental deer farm at Glensaugh (Blaxter et al. 1974), that in-depth investigations of disease and physiology were published. It was the advent of deer farming that made such research feasible and commercially viable. This book demonstrates just how much has been learnt since that time and when at last we could get our hands on increasingly domesticated living deer.

Humans have kept deer in enclosed ‘parks’ for over two thousand years as status symbols, for sport, and sometimes for venison, but it took the development of wire fences to make actual farming possible and to create, in red deer, probably the first new domesticated livestock species for at least five thousand years (Fletcher 2001).

Most deer species are, in physiological terms, highly seasonal and adapted to northern temperate climates. Where deer and people co-exist, we have always exploited their antlers, their hides and their meat. Otzi the man preserved in ice for over 5000 years in the Austro-Italian Alps ate venison at one of his last meals, walked in deer skin shoes, wore deer hide clothing, kept his antler-tipped arrows in a quiver constructed from roe deer hide and carried an antler tool probably used to shape flints.

In fact, we talk of the Stone Age, but there was an even longer antler age. The Mesolithic flint mines at Grimes Graves in Norfolk were worked with picks made of red deer antlers. Many of these remain, discarded as worn out but still carrying handprints of the miners in the clay that covers them (Clutton-Brock 1984). Many prehistoric monuments depended on the use of antler tools and it has been calculated that each of the many mine shafts would have used up to 400 antlers each year. How were so many cast antlers found? I like to think that with good knowledge of deer behaviour stags might have been gathered by feeding them browse, such as ivy, which the deer could not reach. There is pollen evidence that ivy was being stored in human settlements (Simmons & Dimbleby 1974) and if the deer were encouraged to stay in the same area during the short period of antler casting, then collecting them before they were covered by the growth of spring vegetation would have been made very much easier. Perhaps such systems foreshadowed future deer parks.

Because deer remained largely inaccessible and only fleetingly glimpsed, they have always been fertile ground for myths and, because the antlers could be seen to regrow each year, deer became symbols of rejuvenation and longevity wherever they existed from Japan to Ireland.

And where have we come to now? The beliefs that motivated deer farming are clear: in their natural environment are not deer better adapted to seasonal climates than the alien cattle and sheep? Yet they remain wild in that they have a rut, which can be difficult to manage on farms, and they are active and carry antlers making handling and containment more expensive. However, they have not been bred and managed to the point where they are subject to the many diseases of overproduction and their meat is better suited to modern human needs than that of conventional livestock, being leaner and high in polyunsaturated fats and iron.

In the United Kingdom, most of the deer industry relates to the production of venison from farms and parks and, especially, by far the largest source, from wild shot deer. There is substantial pressure to reduce deer numbers throughout most of Britain. Notoriously difficult to count, there is no doubt that the native roe, invasive and non-native muntjac, and naturalised fallow deer, in particular, have extended their range whilst their numbers have also grown steadily for decades to reach perhaps the largest cumulative populations at any time in history. These deer are impacting agriculture, forestry and horticulture, the natural environment and causing road traffic accidents with their human toll. Several people die each year in Britain as a result of collisions with deer and many more are injured.

All the governments within the United Kingdom wish to increase woodland in order to lower net greenhouse gas emissions and reduce our dependence on timber imports. Ecologists press for the planting of native woodland to improve biodiversity. Deer of all species negatively impact on tree planting, thus venison from culled deer represents the most sustainable meat available and consumption is rising.

Wild deer provide over 95% of the venison coming to market in Britain and might be assumed to provide a much cheaper source than either farmed or park venison. However, much of this wild venison is derived from red deer in Scotland, and the costs of shooting wild deer and especially the recovery of the carcases are substantial. Across the UK market, the quality is inevitably highly variable, not least because it comes from a variety of different species as taxonomically removed from each other as cows are to sheep, yet all labelled generically, as venison. The costs of creating a hygienic, marketable product from a carcase that has been eviscerated before it has been skinned and which will usually have sustained damage from the bullet are also high. These factors combine to make farmed venison produced consistently to a uniform standard under stringent quality assurance regulations, killed humanely and processed hygienically, likely to command strong prices in a growing market.

This book wisely avoids much discussion of the worldwide industries that revolve around deer, but antlers drive much of their exploitation. To the outsider the values placed on large antlers as trophies may seem bizarre, yet for many ‘hunters’, who shoot deer in enclosures at close range in order to hang the trophy on the wall, the sky seems to be the limit. Some veterinarians have used artificial reproductive techniques to enable deer breeders to pursue their remorseless quest for ever heavier antlers, fostering the production of some white-tailed deer which can no longer lift their heads from the ground.

The trophy business is probably no larger than the extraordinary farming of deer in much of Asia for the production of the growing antlers harvested by amputation when the growth is at its maximum. In Russia and beyond, wealthy men drink, or even bathe in, the fresh blood as it spurts from the cut surface. The most widely traded commodity is slices of dried growing antler. This velvet is prized by the traditional Chinese medicine trade and is produced in New Zealand with very stringent welfare safeguards. Despite substantial investment, there is no very convincing peer-reviewed literature to substantiate claims of the medicinal value of velvet antlers. The same is true of the many other deer products that are marketed, including sinews, tails and fetuses. Within the United Kingdom and most of Europe, the amputation of growing antlers is illegal except where it may alleviate suffering.

It is the steady growth of the farmed deer industry that has provided the impetus for this book and stimulated the knowledge and veterinary science which also benefit the wild, park and zoo deer.

John Fletcher

Harthill, Reediehill Deer Farm, Auchtermuchty, Fife, KY14 7HS, Scotland

References

Blaxter KL, Kay RNB, Sharman GAM, Cunningham JMM and Hamilton WJ (1974) Farming the Red Deer – the first report of an investigation by the Rowett Research Institute and the Hill Farming Research Organisation. Department of Agriculture and Fisheries for Scotland, Her Majesty’s Stationery Office, Edinburgh.

Caton JD (1877) The Antelope and Deer of America. A comprehensive scientific treatise upon the natural history, including the characteristics, habits, affinities and capacity for domestication of the Antilocapra and Cervidae of North America. Cambridge, MA, USA: The Riverside Press.

Clutton-Brock J (1984) Excavations at Grimes Graves, Norfolk, 1972–1976, Fascicule 1: Neolithic Antler Picks from Grimes Graves, Norfolk, and Durrington Walls, Wiltshire: A Biometrical analysis. London, UK: British Museum Press.

Evans H (1890) Some Account of Jura Red Deer. Carter, Derby, UK.

Fletcher TJ (2001) Farmed deer: new domestic animals defined by controlled breeding.

Reproduction, Fertility and Development

13:511–516. doi: 10.1071/rd01094.

Fraser Darling F (1946)

A Herd of Red Deer

. Oxford, UK: Oxford University Press.

Simmons IG and Dimbleby GW (1974) The Possible Role of Ivy (

Hedera helix

, L.) in the Mesolithic Economy of Western Europe.

Journal of Archaeological Science

1:291–296. doi: 10.1016/0305-4403(74)90029-6.

Preface

In 1994, the Veterinary Deer Society (VDS) published the second edition of their book Management and Diseases of Deer (A Handbook for Veterinary Surgeons) edited by Tom Alexander and David Buxton. The book is out of print and was converted into a CD-ROM version, which is available from the British Deer Veterinary Association (BDVA).

In commissioning the current book, the primary aims were to build on the substantial content of the VDS book and to compile a series of chapters that would form a useful handbook for veterinary surgeons/veterinarians when dealing with deer. It is acknowledged that while the book is aimed at veterinary surgeons who may not know a great deal about deer – given that most veterinarians will have limited scope for undertaking deer work – that deer owners, managers, stalkers and others will find the book of interest and assistance.

There are 38 authors, including members of the BDVA committee, who have also read all of the chapters. The committee includes Gareth Boyes, Sam Ecroyd, Peter Green, Kit Heawood and Ken Urquhart. The authors are largely drawn from across the UK, with colleagues from Ireland, Sweden, Switzerland and the United States.

Deer are enclosed and managed within a variety of settings from farms to parks to zoological collections, with some kept in a manner akin to companion animals or pets. In the United Kingdom, there are six species of wild deer and many other species in zoological collections.

The first part of the book introduces deer species and how they can be handled, restrained and managed in farms, parks and in the wild, leading onto the submission of deer carcases into the human food chain. Subsequent chapters provide overviews of the nutritional needs of deer, dealing with antlers, reproductive interventions and the needs of wild deer with particular reference to emergency situations.

Deer are susceptible to notifiable diseases, most notably chronic wasting disease and infection with

Mycobacterium bovis

(TB). These and other notifiable conditions are discussed.

Diseases of deer are presented using a systems-based approach (including gut, nervous, respiratory and skin) and there is an associated chapter that includes some of the important zoonotic diseases and agents that they may harbour.

Given their importance, both here in the United Kingdom and elsewhere, there are specific chapters about muntjac, reindeer and white-tailed deer.

Finally, there are two key chapters on postmortem examination and a drug formulary.

The aims of the book also included the inclusion of illustrations and sources of further reading and references to help provide an evidence base for dealing with situations and disease in deer.

Given the structure of the book, it is inevitable that chapters have some overlapping content. Where possible, the overlaps have been signposted and covered in the index. Readers should treat each chapter as a separate stand-alone item, albeit with potential links to several chapters within the book.

Acknowledgements

The BDVA would like to express its appreciation for the time and effort that the authors have committed to sharing their expertise in writing their chapters. There has been considerable support from prospective authors and colleagues in terms of recruiting authors and gaining access to images. I am particularly grateful to Peter Green and Jim Walsh who have shared much of their extensive collections of deer images. I am particularly grateful to David Buxton and Tom Alexander, the editors of the 1994 Veterinary Deer Society (VDS) book, also to John Fletcher, Pete Goddard and Ranald Munro, who wrote many of the chapters; they provided lots of useful contacts and advice.

While the book was in preparation, one of the leading authors of the 1994 VDS book, Hugh Reid, passed away. Hugh made a major contribution to veterinary virology and this included important research into agents that affect deer. He worked for many years at the Moredun Research Institute and his legacy is well reflected in the large group of authors who are based at the Moredun and who have provided detailed expert chapters on a variety of diseases that affect deer (and humans potentially).

My thanks go to Dominic Alexander for commenting on parts of the text and to Alun Murphy for providing information about lead analyses.

Additional specific acknowledgements in relation to the chapters are given below, including those provided by the authors.

Chapter 10Antlers – Acknowledgements for images including Jim Walsh, Paul Rodgers, Pavel Scherer and Gemma Thorpe.

Chapter 15 Tb Serology

For the co-authors and contributors to Defra project SE3315 (Barton P, Robinson N, Middleton S, O’Brien A, Clarke J, Dominguez M, Gillgan S, Selmes J and Rhodes S). Additional thanks to Ricardo de la Rua-Domenech (APHA TB Policy Veterinary Advisor to Defra), David Harris (Wales TB Veterinary Adviser) and Martyn Blissitt (Scotland Veterinary Adviser [Notifiable Diseases]) for review of this chapter, also Patricia Touw and Charlotte Pritchard (past and present APHA veterinary advisors for TB delivery) for supporting and enabling deer testing at APHA.

Chapter 17 MCF This chapter is an update of a previous edition written by Hugh Reid, whose contribution to MCF research was considerable. The structure of the article and much of the background was Hugh’s, while the more modern aspects were added by the current authors.

Chapter 26 Skin – For the provision of images and advice Gareth Boyes, John Fletcher, Toby Floyd, Mark Fox, Peter Green, Pavel Scherer, Ken Urquhart and Richard Wall.

Chapter 30Muntjac

The late Donald Chapman initiated the field studies that gave rise to these data, setting up the project with permission of the Forestry Commission. After his untimely death in a road traffic accident in 1982, overall supervision of the field studies was undertaken by Professor Stephen Harris, who supervised several PhD students undertaking ecological research in the study area. The authors acknowledge the invaluable input of Mick Claydon, Cathy Claydon, Diane Blakely and the many volunteers who participated in the flushing, netting and processing of the deer. The authors are grateful to John Cooper and Andrew B. Forbes for their involvement with the collection of samples and to Sam Pearce for assistance with statistical analysis.

Photographs

Marc Baldwin, Alex Barlow, Suzi Bell, Matt Colson, Mark Dagleish, Sam Ecroyd, John Fletcher, Peter Green, Beckie Diston, Angie Nelson, Iain Richards, Paul Rodgers, Pavel Scherer, Alex Smith, Tilly Smith, Daniel Sproule, Gemma Thorpe, Jim Walsh. Please see figure legends for details of the permission to publish.

Disclaimer

Whist every care has been taken to ensure the accuracy of the information contained in this book, the editor, contributors, publishers and the BDVA can accept no responsibility for any error or misleading statement which may inadvertently have been included. Neither can they accept any responsibility for the consequences of any course of action which may be followed as the result of any such error or misleading statement.

It should be noted particularly that the responsibility in the United Kingdom for prescribing or supplying medicinal products accurately and appropriately for the animals under their care remains squarely with the veterinary surgeon. In this connection the advice given by the Royal College of Veterinary Surgeons (https://www.rcvs.org.uk/setting-standards/advice-and-guidance/code-of-professional-conduct-for-veterinary-surgeons/) and the British Veterinary Association (see for example https://www.bva.co.uk/resources-support/medicines/under-care-resources-for-veterinary-practices/) should be borne carefully in mind. In any case of doubt the licence holder of the medicinal product in question should be consulted.

List of Tables

Table 1.1

A taxonomy of deer species.

Table 2.1

Space allocation for housing deer at different life stages.

Table 5.1

Trace element ranges for park deer.

Table 6.1

Wormer categories (for gut worms, lungworm and liver fluke).

Table 7.1

A brief outline of deer management and varying statutory regulations in some European countries.

Table 7.2

A summary of disease surveillance reports for roe deer in selected European countries.

Table 8.1

Legislation applicable to foodstuffs in Great Britain.

Table 11.1

Breeding and antler windows for UK deer species across the calendar year.

Table 11.2

Approximate measurements used in fetal ageing of red deer.

Table 12.1

Comparison of ruminant species relative to feeding pattern.

Table 12.2

Predicted dietary energy and protein requirements (dry matter basis) of deer.

Table 12.3

Predicted dietary calcium and phosphorus and vitamins A and E requirements for deer at different life stages (NRC 2007).

Table 12.4

Suggested dietary mineral concentrations (dry matter basis) for captive deer diets based on modified recommendations for goats (NRC 2007).

Table 14.1

Prevalence of

Mycobacterium bovis

infection in English wild deer sampled between 2000 and 2003.

Table 15.1

Summary of antibody test sensitivity and specificity for TB in deer.

Table 15.2

Antibody test comparisons using Kappa and McNemar statistical tests for Tb in deer.

Table 15.3

Test performance in terms of sensitivity and specificity of deer antibody tests for TB at APHA.

Table 16.1

Summary of findings in deer species infected with foot and mouth virus.

Table 18.1

Deer species and premise type where infection with

Mycobacterium avium paratuberculosis

(MAP) has been reported.

Table 19.1

Species of roundworms identified in wild deer across Europe.

Table 19.2

Possible reasons for animals being underdosed with anthelmintics.

Table 24.1

Species of pulmonary associated parasites identified in wild deer (and reindeer) across Europe.

Table 26.1

Diagnostic tests for investigating skin disease.

Table 27.1

Diagnostic instruments and supplies necessary to perform an ophthalmic examination.

Table 27.2

Intraocular pressure and reflex tear production values of various deer species using the Tono-Pen-XL applanation and TonoVet rebound tonometers and Schirmer Tear Test I (STT I), respectively.

Table 30.1

Haematological values for combined free-living and captive populations.

Table 30.2

Biochemical values for the combined free-living and captive populations.

Table 30.3

Haematological values for the free-living population.

Table 30.4

Haematological values for the captive population.

Table 31.1

Summary of analyses of deer samples for assessing selenium and Vitamin E status.

Table 33.1

Equipment lists for undertaking postmortem examination.

Table 34.1

Antimicrobials.

Table 34.2

Anthelmintics, coccidiostats and ectoparasiticides.

Table 34.3

Non-steroidal anti-inflammatory agents.

Table 34.4

Glucocorticoids.

Table 34.5

Sedatives and anaesthetic agents.

Table 34.6

Sedation reversal agents.

Table 34.7

Reproductive hormones.

Table 34.8

Vitamins, minerals and trace-elements.

Table 34.9

Miscellaneous.

List of Illustrations/Images

Figure 1.1

Axis deer.

Figure 1.2

Axis deer.

Figure 1.3

Barasingha deer.

Figure 1.4

Barasingha deer.

Figure 1.5

Fallow buck with recent rutting penetration of eye.

Figure 1.6a

Fallow does and fawns (various colours).

Figure 1.6b

Fallow deer bucks - showing common, melanistic and menil colour forms.

Figure 1.7

Fallow deer antler.

Figure 1.8

Mule deer.

Figure 1.9

Mule deer.

Figure 1.10

Muntjac.

Figure 1.11

Père David’s stags in velvet.

Figure 1.12

Père David deer.

Figure 1.13

Red hind and calf.

Figure 1.14

Red stag.

Figure 1.15

Red deer antler.

Figure 1.16

Reindeer stag.

Figure 1.17

Reindeer calf.

Figure 1.18

Female reindeer and their calves in winter.

Figure 1.19

Reindeer antler.

Figure 1.20

Roe buck.

Figure 1.21

Roe doe.

Figure 1.22

Roe deer antler.

Figure 1.23

Sika deer.

Figure 1.24

Wapiti hind.

Figure 1.25

Wapiti in Canada.

Figure 1.26a

Water deer fawn.

Figure 1.26b

Water deer buck.

Figure 1.27

White-tailed deer - does.

Figure 1.28

White-tailed deer buck.

Figure 4.1

A view of a reindeer being prepared for a CT scan.

Figure 8.1

An example of a hunter’s declaration.

Figure 8.2

(a) A well-kept game larder for deer. (b) An onward transport vehicle to an animal game handling establishment.

Figure 8.3

Routes for the supply of the wild game including the use of the collection centres.

Figure 10.1

Illustrating the terms used to describe an antler.

Figure 10.2

(a) Red deer with cast antler showing the pedicle from where the new antler will grow. (b) Red deer with new antler growth showing from the pedicle.

Figure 10.3

(a) Perruque in a red deer castrate - an uncommon condition in this species. (b) Perruque in a castrated roe deer.

Figure 10.4

The figure represents the seasonal pattern of antler growth in male and female reindeer in relation to their reproductive cycle.

Figure 10.5

Hyperplastic fibrous changes to velvet skin (antleroma) in a castrated reindeer.

Figure 12.1

Cumulative fetal weight for white-tailed deer fetus throughout gestation.

Figure 12.2

Wild white-tailed deer foraging in Valley Forge, Pennsylvania, USA, where the population exceeded carrying capacity resulting in various stages of malnutrition.

Figure 13.1

Excess salivation in an elk (

Cervus elaphus canadensis

) with CWD.

Figure 13.2

Distribution of classical and atypical cases of CWD in reindeer, moose and red deer in Scandinavia.

Figure 14.1

Fallow buck with TB; sanginous nasal discharge.

Figure 14.2

Buck in poor condition due to TB.

Figure 14.3

TB abscesses in red hind lung.

Figure 14.4

TB abscesses in mesenteric chain.

Figure 14.5

Miliary lesions of TB on the rumen serosa.

Figure 14.6

TB abscesses of bronchial lymph nodes.

Figure 14.7

Red hind with TB abscesses visible in the retropharyngeal / throat area.

Figure 14.8

Multiple TB abscesses in omentum.

Figure 14.9

TB abscesses in diaphragm and liver.

Figure 14.10

Encapsulated firm abscess in lung tissue.

Figure 14.11

Small firm abscess in the mesenteric lymph node.

Figure 14.12

Soft custard like abscess material adjacent in popliteal lymph node adjacent to muscle tissue.

Figure 14.13

Large firm gritty abscess in an inguinal lymph node.

Figure 14.14

Brown liquid abscess in a popliteal lymph node.

Figure 14.15

Multiple firm to gritty abscess lesions in mammary gland tissue.

Figure 14.16

Multifocal variably sized soft Tb lesions in the liver.

Figure 17.1

Phylogenetic tree of MCF viruses and herpes viruses infecting deer.

Figure 18.1

The life cycle of infection and transmission of Johne’s Disease in deer.

Figure 18.2

Postmortem image showing the corrugated appearance of the mucosa of the terminal ileum in a sheep with Johne’s disease.

Figure 18.3

Histological findings in the gut of sheep with Johne’s disease (infection with

Mycobacterium avium paratuberculosis

-MAP).

Figure 19.1

Individual faecal egg counts from farmed red deer.

Figure 19.2

(a) Low power image of a faecal sample containing liver and rumen fluke eggs stained with methylene blue. (b) Higher power images of silvery rumen fluke egg (left) and brown fluke egg (right) for comparison. (c) Mixed roundworm species eggs, including

Oesophagostomum

and

Nematodirus

.

Figure 19.3

(a) Whole pluck from red deer, note marked cirrhosis with areas of atrophy and scarring at the bottom of the picture and evidence of compensatory regeneration. (b) Liver with extensive fluke damage collected from culled roe deer with no obvious clinical signs. (c) Nodular lesions on abomasum folds resulting from

Ostertagia

infection.

Figure 24.1

Pilobolus

fungi with water droplets.

Figure 24.2

(a) Incised lung nodules associated with

Protostrongylus

spp. (b) External view of lung nodules in a roe deer with

Protostrongylus

spp.

Figure 24.3

(a)

Dictyocaulus viviparus

larvae, isolated from faeces. (b)

Dictyocaulus viviparus

larvae, isolated from faeces.

Figure 24.4

Posterior (Top row) and full body (bottom row) line drawings of lungworm first stage larvae A.

Dictyocaulus filaria

; B.

Protostrongylus rufescens

; C.

Muellerius capillaris

; D.

Cystocaulus ocreatus

; E.

Neostrongylus linearis

(posterior only); F.

Dictyocaulus viviparus

(full body only).

Figure 24.5

Adult

Dictyocaulus

spp. in the opened trachea of a red deer.

Figure 24.6

Adult

Dictyocaulus eckerti

showing kidney shaped buccal ring.

Figure 25.1

(a) Postmortem examination of a reindeer with extensive

Cephenemyia

infestation (nasal bots). (b) Postmortem examination of a moose with

Cephenemyia

infestation (nasal bots). (c)

Cephenemyia

(nasal bots) from (b).

Figure 26.1

(a) Warble fly lesions due to

Hypoderma diana

in a red deer from Scotland. (b) Warble fly lesions due to

Hypoderma diana

in a red deer from Scotland. (c) Warble fly lesions due to

Hypoderma diana

in a red deer from Scotland.

Figure 26.2

Low power histology image (haematoxylin and eosin) of skin, showing a follicle with demodex mites in the lumen and in the adjacent sebaceous gland with mild perifollicular inflammation.

Figure 26.3