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LIST OF ABBREVIATIONS<br />

TABLE OF CONTENTS<br />

PREFACE 1<br />

CHAPTER 1 GENERAL INTRODUCTION 3<br />

1.1 Semen analysis 5<br />

1.2 Collection <strong>and</strong> processing <strong>of</strong> equine semen 27<br />

1.3 Shortcomings in current practice 49<br />

CHAPTER 2 SCIENTIFIC AIMS 71<br />

CHAPTER 3 ANALYSIS OF EQUINE SEMEN – IS AUTOMATION (THE) KEY TO STANDARDIZATION? 75<br />

3.1 Influence <strong>of</strong> technical settings on CASA motility parameters <strong>of</strong> frozen-thawed stallion<br />

semen 77<br />

3.2 Counting chamber influences the CASA motility outcomes <strong>of</strong> equine semen analysis 85<br />

3.3 Validation <strong>and</strong> usefulness <strong>of</strong> the SQA-Ve (1.00.43) for equine semen analysis 109<br />

3.4 Need for further improvement <strong>of</strong> SQA-Ve (1.00.61) for a univocal analysis <strong>of</strong> the<br />

quality <strong>of</strong> frozen-thawed equine semen 123<br />

CHAPTER 4 DIFFERENT CENTRIFUGATION TECHNIQUES – TO WHAT EXTENT DO THEY AFFECT QUALITY AND<br />

PRESERVATION OF EQUINE SEMEN 135<br />

4.1 Influence <strong>of</strong> different centrifugation protocols on equine semen preservation 137<br />

4.2 Sperm selection using single layer centrifugation prior to cryopreservation can<br />

increase post-thaw sperm quality in stallions 157<br />

CHAPTER 5 GENERAL DISCUSSION 177<br />

SUMMARY 201<br />

SAMENVATTING 205<br />

DANKWOORD 211<br />

CURRICULUM VITAE 215<br />

BIBLIOGRAPHY 219<br />

ADDENDUM I FUNDAMENTAL ASPECTS OF CRYOPRESERVATION 225<br />

ADDENDUM II DETAILED LOADING TECHNIQUE OF THE DIFFERENT TYPES OF COUNTING CHAMBERS USED TO ANALYZE<br />

EQUINE SEMEN SAMPLES WITH CASA 231<br />

i

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