My Horse University and eXtension’s HorseQuest              welcome you to this live Webcast. Gastric Ulcers in Horses: Ho...
Meet our presenter:        Dr. Jenifer Nadeau        Associate Professor &           Equine Extension           Specialist...
Prevalence of Equine Gastric Ulcer          Syndrome (EGUS)• 60% to 93% in                                   • 11% in less...
Stomach Anatomy• Non-glandular region• Margo plicatus• Glandular region
Types of ulcers• Primary squamous ulceration• Primary glandular ulceration• Secondary squamous ulceration
Squamous Ulcers
Glandular Ulcers
Causes• Diet especially hydrochloric acid and volatile  fatty acids• Bile acids• Bacterial contamination, including H. pyl...
Causes of EGUS• Damage occurs when aggressive  factors overpower defenses of  gastric mucosa• Squamous mucosal lesions (80...
Previous Study (Dietary Factors)                         (Nadeau, Andrews, Mathew et al, AJVR, 2000)                  1.5 ...
ConclusionsHigh lipid solubility            Ability to remain                                undissociated at low pH      ...
Risk Factors•   Age, breed, gender•   Exercise•   Fasting•   Pasture turnout•   Starch intake•   Forage feeding and type o...
Clinical Signs•   Acute and recurrent colic•   Poor body condition•   Poor appetite•   Grinding of teeth
Clinical Signs•   Poor performance•   Attitude changes•   Diarrhea•   Dorsal recumbency in foals
Diagnosis• Endoscopy• Clinical signs & response to  treatment
Medical Management• Antacids• Histamine type 2 receptor antagonists  – Ranitidine/Cimetidine• Omeprazole – Gastrogard• Coa...
Prevention and Management• Roughage – as much as possible   – at least 1-1.5 kg/100 kg BW   – at least 75% roughage   – Gi...
Prevention and Management• Provide fresh, clean water continuously• Whenever possible, avoid stressful situations   – Long...
Prevention and Management• Racehorses  – Prior to racing, give normal ration  – Give forage up to 3 hrs prior to workout o...
Summary• Multifactorial, many causes• Long list of potential risk factors• Important to evaluate horse’s diet and daily  m...
Resources• Nadeau, Jenifer & Luthersson, Nanna. Effect  of Nutrition on Gastric Ulceration. In:Equine  Applied and Clinica...
Acknowledgments• Nanna Luthersson• Dr. Frank Andrews• Dr. Richard Hepburn
Upcoming Events at UConn• Spring Clinic: Trailer Driving 9-12 at UConn, March  26• Spring Clinic: Natural Horsemanship 1-4...
Upcoming Events at UConn• Sigma Alpha Open Horse Show – April 3• Horseplay Lecture at UConn for the CT Museum of  Natural ...
Upcoming Events at UConn• Riding Camp Safety Certification Clinic – June 11• Summer Riding Program – UConn – open to publi...
Questions?• For questions or more information   about this and other horse-related  topics:  jenifer.nadeau@uconn.edu• Web...
Give us your feedback!• You will receive a survey by email in 1-2 days.  Please take a few minutes to give us your  feedba...
Upcoming Webcasts• Understanding and Evaluating the Gaited  Horse  April 19, 2011  7PM EDT
Thank you for attending this live web presentation!                For more information about            My Horse Universi...
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Gastric Ulcers: How to Tell if Your Horse Has One, and What to Do if it Does

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My Horse University/eXtension HorseQuest free monthly webcast on gastric ulcers in horses. Presented by Dr. Jenifer Nadeau, University of Connecticut.

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Gastric Ulcers: How to Tell if Your Horse Has One, and What to Do if it Does

  1. 1. My Horse University and eXtension’s HorseQuest welcome you to this live Webcast. Gastric Ulcers in Horses: How to Tell if Your HorseHas One, and What do Do if it Does Dr. Jenifer Nadeau University of Connecticut
  2. 2. Meet our presenter: Dr. Jenifer Nadeau Associate Professor & Equine Extension Specialist University of Connecticut
  3. 3. Prevalence of Equine Gastric Ulcer Syndrome (EGUS)• 60% to 93% in • 11% in lesson horses performance horses • 66.6% in pregnant• 40% to 58% of show broodmares horses • 75.9% in non pregnant• 25% to 50% in foals broodmares • 37-53% pleasure horsesMurray et al, Equine Vet J, 1996; Murray, JAVMA, 1989; Murray,AAEP, 1997; Bertone 2000; McClure et al. 1999.
  4. 4. Stomach Anatomy• Non-glandular region• Margo plicatus• Glandular region
  5. 5. Types of ulcers• Primary squamous ulceration• Primary glandular ulceration• Secondary squamous ulceration
  6. 6. Squamous Ulcers
  7. 7. Glandular Ulcers
  8. 8. Causes• Diet especially hydrochloric acid and volatile fatty acids• Bile acids• Bacterial contamination, including H. pylori• Non-steroidal anti-inflammatory drugs (NSAIDs)• Exercise
  9. 9. Causes of EGUS• Damage occurs when aggressive factors overpower defenses of gastric mucosa• Squamous mucosal lesions (80%) result from increased acids• Glandular mucosal lesions (20%) result from impaired mucosal protection
  10. 10. Previous Study (Dietary Factors) (Nadeau, Andrews, Mathew et al, AJVR, 2000) 1.5 Gastric Lesion Number and Severity 1 b 0.5 bChange in score 0 NG Lesion# G Lesion# NG Severity G Severity Alfalfa/grain -0.5 Bromegrass -1 a -1.5 a -2 -2.5
  11. 11. ConclusionsHigh lipid solubility Ability to remain undissociated at low pH Cell Acidification, Damage to Sodium Transport Cell Swelling Necrosis and Ulceration
  12. 12. Risk Factors• Age, breed, gender• Exercise• Fasting• Pasture turnout• Starch intake• Forage feeding and type of forage• Water intake• NSAIDs
  13. 13. Clinical Signs• Acute and recurrent colic• Poor body condition• Poor appetite• Grinding of teeth
  14. 14. Clinical Signs• Poor performance• Attitude changes• Diarrhea• Dorsal recumbency in foals
  15. 15. Diagnosis• Endoscopy• Clinical signs & response to treatment
  16. 16. Medical Management• Antacids• Histamine type 2 receptor antagonists – Ranitidine/Cimetidine• Omeprazole – Gastrogard• Coating or binding agents – Sucralfate/bismuth subsalicylate
  17. 17. Prevention and Management• Roughage – as much as possible – at least 1-1.5 kg/100 kg BW – at least 75% roughage – Give high protein (17-20% CP) or high calcium (6-14 mg/g feed) forage• Avoid feeding sweet feeds – <1 g/kg BW starch meal – <2 g/kg BW starch/day• If giving concentrates, feed more frequently• Provide pasture turnout whenever possible or frequent forage (4-6 meals/day)
  18. 18. Prevention and Management• Provide fresh, clean water continuously• Whenever possible, avoid stressful situations – Long distance travel – Changing environments – Long periods of confinement – Avoid leaving horses >6 hours without forage during transport – Consider giving antiulcer medicine before transport• Use minimal effective dose for NSAIDs, treat with antiulcer medicine simultaneously
  19. 19. Prevention and Management• Racehorses – Prior to racing, give normal ration – Give forage up to 3 hrs prior to workout or race – Do not feed hay or concentrates within 3 hrs of workout or race – After the workout or race, forages can again be offered – Do not feed concentrates until at least 2 hrs after exercise – Water can be offered free choice after exercise but should initially drink slowly
  20. 20. Summary• Multifactorial, many causes• Long list of potential risk factors• Important to evaluate horse’s diet and daily management to prevent them• By following these recommendations, may be possible to prevent or reduce the risk of gastric ulceration• Feeding and management practices must change to prevent recurrence!
  21. 21. Resources• Nadeau, Jenifer & Luthersson, Nanna. Effect of Nutrition on Gastric Ulceration. In:Equine Applied and Clinical Nutrition Book Editor(s): Ray Geor, Pat Harris and Manfred Coenen• Hepburn, Richard. Gastric ulceration in horses. March 2011. Equine Practice. 33:116-124.
  22. 22. Acknowledgments• Nanna Luthersson• Dr. Frank Andrews• Dr. Richard Hepburn
  23. 23. Upcoming Events at UConn• Spring Clinic: Trailer Driving 9-12 at UConn, March 26• Spring Clinic: Natural Horsemanship 1-4 at UConn, March 26• Spring Clinic: Dressage with Deb Moynihan at UConn, March 27
  24. 24. Upcoming Events at UConn• Sigma Alpha Open Horse Show – April 3• Horseplay Lecture at UConn for the CT Museum of Natural History - April 3, 3 PM• Eastern CT Draft Horse Plow Match, UConn – April 16• Spring Horse Auction of UConn and CT Dept of Ag. Horses – April 23• 4-H Hippology Contest – April 30• 4-H Horse Judging Contest – May 1
  25. 25. Upcoming Events at UConn• Riding Camp Safety Certification Clinic – June 11• Summer Riding Program – UConn – open to public – Trail Sessions – Session I May 3, 5, 10, 12, 24, 26 – Session II June 20, 22, July 5, 7, 19, 21 – Session III August 2,4,9,11,16,18
  26. 26. Questions?• For questions or more information about this and other horse-related topics: jenifer.nadeau@uconn.edu• Website: http://animalscience.uconn.edu/equine/extension/extensio• The University of Connecticut supports all state and federal laws that promote equal opportunity and prohibit discrimination. An equal opportunity employer and program provider.
  27. 27. Give us your feedback!• You will receive a survey by email in 1-2 days. Please take a few minutes to give us your feedback on this webcast. It will help us to better serve you!
  28. 28. Upcoming Webcasts• Understanding and Evaluating the Gaited Horse April 19, 2011 7PM EDT
  29. 29. Thank you for attending this live web presentation! For more information about My Horse University please visit us at: www.myhorseuniversity.cominfo@myhorseuniversity.com | www.myhorseuniversity.com | 517-353-3123

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