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Interactive Graphic: Horse's Digestive System

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Horse's Digestive System

Horses are "post-gastric fermenters." This means a large portion of the horse's digestion comes from the fermentation of fiber within the latter portions of the digestive system.

Illustration by Karen Kuchar
KarenKuchar.com

Surprising little digestion goes on in the stomach itself. There is a small microbial population which initiates some fermentation, and there is also some enzymatic action--but food remains in the stomach only 15 minutes before being pushed on to the small intestine, with little time for any major food breakdown. When the stomach reaches about two-thirds of its capacity, it typically starts to pass food on to the small intestine. Then the ingestion of additional food causes the process to continue into the cecum and large intestine. As long as the horse keeps eating, food continues to be pushed through the system. The large intestine produces over 60% of the horse's energy.


Index Equine Emerging Diseases

DATE         Name Item Number
2009 12 01 Equine Piroplasmosis TX 170
2009 12 12 Equine herpesvirus, equine -SC 171
2009 12 17 Eastern Equine Encephalitis, Equine -NC 172
2009 12 28 Horses Infected Equine Piroplasmosis -NM 173
2009 12 30 Travel Restriction on Some Horses -NM 174
Outbreaks Equine Infectious Diseases 175
2009 12 31 Equine Herpesvirus -LA 176
2010 01 08 Import Restrictions Announced for Horses from New Mexico Entering Canada 177
Testing 178
2010 01 18 Free Equine Seminar Series Univ. Ky - Videos Available 179
2010 01 20 Equine Infectious Anemia (EIA) - Swamp Fever 180
2010 01 20 UK horse owners alert outbreak of 'swamp fever' 181
2010 01 25 Flu outbreak kills three horses in Red Bluff and Cottonwood, CA 182
2010 01 28 Ivermectin foal worm warning 183
2010 01 28 EQUINE PIROPLASMOSIS - USA: 184
2010 01 28 Equine Piroplasmosis - Texas 185
2010 02 03 Equine Piroplasmosis - Utah 186
2010 02 04 Update Equine Piroplasmosis — Texas Animal Health Commission 187
2010 01 17 NSAIDs Rule Change Approved at USEF Meeting 188
2010 02 16 Deworming - Cushing's Disease 189
Choke - Esophageal obstruction 190
2010 03 11 Canadian Import rules remain on U.S. horses, germplasm 191
2010 03 11 Developments in Regenerative Medicine - Stem Cells 192
2010 03 19 Rabies reports from Michigan and Texas - Horse Tests Positive for Rabies. 193
194
2010 03 25 Five Maine horses exposed to equine herpes virus quarantined 195
2010 03 25 Contagious Equine Metritis - England 196
2010_04_01 Equine Piroplasmosis Update: News On The Equine Piroplasmosis Outbreak In The United States 197
2010 04 02 Boston- Horse Owners Alerted To Contagious Equine Virus 198
2010 04 03 Six Horses Quarantined- New Jersey 199
2010 04 04 Fatty Acid Triheptanoin Comes Up Short for Horses with PSSM 200
2008 04 11 Polysaccharide Storage Myopathy: Blame It on the Genes 201
2010 04 10 Increased risk for Eastern Equine Encephalitis 202
2010 04 13 American Horse Council National Issues Forum to Focus on Emerging Diseases 203
2010 04 13 American Horse Council National Issues Forum to Focus on Emerging Diseases 204
2010 04 14 Fourth European country to be implicated in EIA outbreaks in 2010 205
2010 04 15 Equine Infectious Anemia: Resources Available 206
2010 04 16 Simple Disinfection Protocol For EHV-1 207
2010 04 17 Horse Dies of Rabies in Colorado 208
2010 04 18 Breakthrough in Genetic Testing of Embryos 209
2010 04 20 Virginia Department of Agriculture Horse owners should vaccinate now for West Nile, EEE 210
2010 04 25 Tips for Rabies Recognition & Prevention 211
2010 04 25 Equine Rabies in Colorado 212
2010 04 26 Bahrain mystery disease identified 213
2010 04 29 Massachusetts horse owners urged to prevent West Nile Virus 214
2010 05 01 Rabies Reported: New York, North Carolina, Massachusetts and West Virginia 215
2010 05 04 VET ALERT PreveNile West Nile Virus Vaccine Recalled 216
2010 05 07 VET ALERT UPDATE -vaccine recall 217
2010 05 08 Viral Equine Arteritis Outbreak in the Province of Buenos Aires 218
2010 05 11 MRI and Tomography Machines that fit Horses! 219
2010 05 14 Mare Reproductive Loss Syndrome, Equine - Kentucky 220
2010 05 14 Equine Infectious Anemia - Montana 221
2010 05 17 UCDAVIS $3 million pledge initiates two endowments for equine health center 222
2010 05 28 Pigeon Fever Found in Florida Horses 223
2010 05 27 Glanders, Equine - Bahrain (03): UPDATE 224
2010 05 28 Vesicular Stomatitis Virus Found In Horses in Arizona 225
2010 05 30 Update on Rabies in the U.S. 226
2010_06_07 Equine Piroplasmosis 227
2010 06 07 Equine Piroplasmosis False Alarm Quarantines Barns Texas 228
2010_06_10 Equine Facts Body Condition Scoring for Your Horse, University of Maine 229
2010 06 19 Cushing's Disease- Favorable Trial has Pergolide on Path to FDA Approval 230
2010 06 22 Florida, Sudden appearance of equine encephalitis has health officials warning of mosquitoes 231
2010 06 21 Equine Piroplasmosis Outbreak Reported in New Mexico 232
2010 06 27 Eastern Equine Encephancephalitis - Florida 233
2010 06 30 Rabies confirmed in Jeff Davis Parish horse, Louisiana 234
2010 07 10 Eastern Equine Encsphalitis - Florida and Georgia 235
2010 07 16 Eastern Equine Encephalitis - Louisiana 236
2010 07 18 USDA continues testing for Contagious Equine Metritis 237
History Contagious Equine Metritis, Historical Cases in the U.S. 238
2010 07 07 EEE, WNV Confirmed in Louisiana 239
2010 07 23 DPH: Middleborough, Massachusetts horse dies of EEE 240
2010 07 20 Equine Encephalitis - Colombia 241
2010 07 27 EEE virus warning expands in SE Massachusetts 242
2010 07 05 Pasture Weeds (video) 243
Strangles 244
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2010 08 03 Horse with Potomac Horse Fever euthanized in Lexington 246
2010 08 04 Eastern Equine Encephalitis - Incidence in USA, 2010, Spraying in Massachusetts 247
2010 08 06 Equine Infectious Anemia Vernon County Missouri 248
2010 08 11 Kentucky racing officials working on regulations to allow out-of-competition testing 249
2010 08 11 Hereditary Equine Regional Dermal Asthenia (HERDA) 250
2010 08 14 Equine Piroplasmosis -USA -North Carolina 251
2010 08 19 Third Massachusetts horse dies from EEE 252
2010 08 20 Western Equine Encephalitis - Nevada 253
2010 08 21 Eastern Equine Encephalitis - USA (22): (VA, MA) 254
2010 08 19 Eastern equine encephalitis causes cancellation of all outside evening activities - Middleboro, MA 255
2010 09 16 September 25 - October 10, World Equestrian Games (WEG) Lexington, Kentucky 256
2010 09 17 Eastern Equine Encephalomyelitis Ogallala, Nebraska 257
2010 11 16 University of Maine Develops Strangles Test Kit 258
2010 12 15 Equine rescue facilities can't handle influx of unwanted horses 259
2010 12 07 Kentucky to begin piroplasmosis testing of horses 260
2011 01 24 UC, Davis Veterinary Genetics Laboratory find genetic mutation in some Arabian horses 261
2011 01 27 Steeplechase resumes at Kentucky Horse Park 262
2011 01 27 Cold Weather Colic in Horses 263
2011 01 28 Canada: Horses From Texas, New Mexico Require Import Permit 264
2011 03 19 Equine Piroplasmosis, Craig. Colorado 265
Equine Safety 266
2011 04 02 Equine Herpesvirus Cornell University New York 267
2011 04 05 Up Date Equine Herpesvirus Cornell University 268
2011 04 09 Rabies warning - beware of biting horses 269
2011 04 10 Horse Owners urged to vaccinate NOW 270
2011 04 05 The Changing Face of Mosquito-Borne Diseases 271
2011 04 15 Equine herpes virus hits New Jersey farm 272
2011 04 14 Cornell University's Equine Hospital returned to normal operating status 273
2011 04 22 Equine Pythiosis, now also affecting horses in cooler, drier climates 274
2011 04 26 The Newborn Foal video 275
2011 05 06 EHV-1 Quarantine of Two New Jersey Farms Lifted 276
2011 05 07 Thrush an anaerobic bacteria, Fusobacterium necrophorum 277
2011 05 09 Equine Arthritis- Osteoarthritis found in Thoroughbred Racehorses 278
201 05 12 Alltech plans to bring glitz back to National Horse Show 279
2011 05 12 New Arizona law will ease taxes on equine operations 280
2011 05 15 Tulsa Breeder's Invitational Postponed - Equine Herpesvirus (EHV-1) 281
2011 05 16 Washington State vets cautions horse owners - EHV-1 outbreak 282
2011 05 16 Equine Herpesvirus - four Colorado counties 283
Equine Herpesvirus (EHV 1) Frequently Asked Questions 284
2011 05 14 Horses competing at Western National Cutting Championships in Ogden, diagnosed with Equine Herpesvirus (EHV-1) 285
2011 05 16 Equine herpes virus outbreak threatens Utah horse events - Idaho, Canada and California added to list of areas impacted 286
2011 05 16 Breeder's Invitational Postponed, potential $3.3 million loss to Tulsa 287
2011 05 17 New Transportation Requirements - Colorado 288
2011 05 18 Multiple Cases of Equine Herpesvirus California 289
2011 05 18 Western States Respond to EHV-1 Outbreak 290
2011 05 18 Colorado State, Washington State veterinary teaching hospitals restrict horse intakes; veterinary officials fear more equine herpes virus cases will emerge 291
Owners Alert: - Equine Herpesvirus (EHV -1) OUTBREAK 292
2011 05 22 Napa, CA horse contracts equine herpes 293
2011 05 23 Deadly horse virus confirmed in South Dakota 294
2011 05 29 New EHV-1 Case Confirmed in Texas, Not Related to Outbreak 295
2011 06 03 EHV-1 Increased by Nine in the Past Week, State by State Update 296
2011 06 01 Horse in Saskatchewan Tests Positive for Equine Herpes Virus 297
2011 06 04 Regulations Tighten on Horses Entering North Dakota 298
2011 06 08 It's the season for insect-borne disease 299
2011 06 08 Up Date Equine Herpesvirus (EHV-1) 300
2011 06 14 A Perfect Storm, One Case of Equine Herpes Becomes Many 301
2011 06 16 Economic Impact, Horses in New Jersey 302
2011 06 16 New cases of equine herpesvirus-1 (EHV-1) still being reported. 303
2011 06 16 Colorado State University to host community workshop on equine herpesvirus, webinar June 27 304
2011 06 16 New test for Lyme Disease 305
2011 06 26 FREE Webinar 6/30 Infectious Upper Respiratory Tract Disease in Horses 306
2011 07 05 Colorado lifting horse inspection rules for equine herpes 307
2011 07 09 Equine Disease Quarterly Update, Index of Articles 308
2011 07 15 Genome blueprint for horse and human vaccines 309
2011 07 26 Colorado State University Equine Laboratory destroyed 310
2011 07 26 Arizona Stallion Tests Positive for Contagious Equine Metrititis 311
2011 08 29 Update EHV-1 case in California 312
2011 08 31 Mosquito-spread diseases - Concern after Hurricane Irene 313
2011 09 01 AAEP Task Force: BLM Mustang Care "Appropriate" 314
2011 09 01 2nd Horse, New York, Eastern Equine Encephalitis 315
2011 09 07 Kentucky — Updating Equine Piroplasmosis (EP) Testing Requirements 316
2011 09 23 Wisconsin - 25 Cases Eastern Equine Encephalitis 317
2011 10 03 North Carolina State CVM Professor Receives Equine Research Award 318
2011 10 06 Wisconsin — mosquito borne disease 319
2011 10 09 Idaho — $80 million horse sports and commercial complex 320
2011 10 31 All-star equestrians at Alltech National Horse Show, November 2 – 6 321
2011 11 02 Wild Fires – When disaster hits, Preparation is key 322
2011 11 05 National Horse Show – Kent Farrington & Up Chiqui win $60,000 Spy Coast Farm speed class 323
2011 11 04 Minnesota Equine Development "...can more than double the dollar value of our equine industry" 324
2011 11 12 Weanling Colt brings $250,000 325
2011 11 14 Equine Land Conservation 326
2011 11 17 FDA Approves First Drug to Treat Cushing's Disease in Horses 327
2011 11 17 World Raining League — $240,000 Purse 328
2011 11 16 Quebec Park — Bidding to host 2018 World Equestrian Games 329
2011 11 19 Winter — Horse Health Care 330
2011 11 26 Argentina - Undiagnosed equine encephalitis 331
2011 11 26 National Museum of the American Indian Exhibit: "A Song For The Horse Nation" 332
2011 11 28 Rabies--Vaccination is the only defense 333
2011 12 01 New York, New York – The Horses Will Jump In Brooklyn 334
2011 12 09 Pigeon fever in Louisiana 335
2011 12 10 Eastern Equine Encephalitis reported in Florida 336
2011 12 26 Horses with front limb lameness, sought for Louisiana study 337
2012 01 01 Horse Health Resolutions 2012 338
2012 01 04 Hunter and ASPCA Maclay Judges Announced for 2012 Alltech National Horse Show 339
2012 01 04 Bahrain – Clear of equine disease glanders for two months 340
2012 01 05 London 2012 Olympics: last-minute horse-trading puts a new spin on medal chances 341
2012 01 06 Herpesvirus affecting horses found at N.C. stable 342
2012 01 17 Dallas Plans for Major Horse Park 343
2012 01 16 Equine Influenza - Chile 344
2011 12 09 Pigeon fever in Louisiana 345
2012 01 19 Update California EHV-1: case total rises to 9 346
2012 01 21 NJ – Twenty-two show horses die in Sussex County barn fire 347
2012 01 22 Neville Bardos survives barn fire to become Olympic contender 348
2012 01 20 Confirmed Case of Equine Herpes Myeloencephalopathy in Southern Ontario (Edited) 349
2012 01 22 Canada, British Columbia – West Nile Virus 350
2012 01 25 CA - Equine Herpes Virus 351
2012 01 26 CA - Polo horse found with equine herpes virus 352
2012 01 27 Canada - Surge in swamp fever sparks call for blood tests, fly control 353
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