{"topic_id":"evidence_equine_gastric_ulcer_diet","category":"evidence","context":"---\ntopic_id: evidence_equine_gastric_ulcer_diet\ncategory: evidence\ntitle: \"Pet horse — equine gastric ulcer syndrome (EGUS) — diet & nutrition management (Europe PMC)\"\nlang: en\nsource: \"Europe PMC REST search (europepmc.org), query '(equine gastric ulcer OR EGUS) AND (horse) AND (diet OR nutrition OR feed)', 1149 hits, pulled 2026-07-22\"\nsource_file: pdf-raw/evidence/europepmc_evidence_equine_gastric_ulcer_diet_2026-07-22.txt\ndate_parsed: 2026-07-22\ntokens_estimated: 260\nverification:\n  method: paraphrase\n  claims: 30\n  passed: 30\n  date: 2026-07-22\nsource_document: \"Veterinary / medical evidence (guideline or study) — PMID 42218917\"\ncitation:\n  authority: \"Europe PMC\"\n  title: \"Pet horse — equine gastric ulcer syndrome (EGUS) — diet & nutrition management (Europe PMC)\"\n  url: \"https://pubmed.ncbi.nlm.nih.gov/42218917/\"\n  retrieved: \"2026-07-22\"\n  ref: \"PMID 42218917\"\n  doc_type: \"official PDF\"\n  needs_review: false\ncopyright_note: \"Mixed licensing per COPYRIGHT_POLICY §3: Open Access (CC BY) studies retained verbatim with attribution; non-Open-Access studies paraphrased as derived fact summaries (numbers and proper nouns preserved, sentences rewritten).\"\nlicense: mixed\nauthority_tier: T2\nauthority_tier_basis: \"T2:oa-repo\"\nauthority_tier_date: 2026-08-04\n---\n\n# Pet horse — equine gastric ulcer syndrome (EGUS) — diet & nutrition management (Europe PMC)\n\nSource: Europe PMC (Europe PubMed Central) REST search, query \"(equine gastric ulcer OR EGUS) AND (horse) AND (diet OR nutrition OR feed)\", 1149 hits (2026-07-22). Each entry is a first-hand peer-reviewed study; the abstract opening is quoted verbatim from the publisher abstract. 6 representative studies below (filtered for species + nutrition relevance).\n\n1. PMID 42218917 — *[Paraphrased derived summary — non-Open-Access source.]* Roux-en-Y gastrojejunostomy and jejunojejunostomy were used to bypass pyloric obstruction in a horse and a foal; gastric outflow obstruction in horses is rare but challenging, often from congenital anomalies or acquired lesions such as chronic ulceration. (Source excerpt truncated at abstract opening.)\n2. PMID 42025860 — *[Paraphrased derived summary — non-Open-Access source.]* A case report described successful nutritional management of an 18-year-old, 553-kg warmblood dressage gelding presenting with severe weight loss and marked muscle atrophy, with multiple pathologies that responded to dietary/nutritional management (J Equine Vet Sci, 2026). (Source excerpt truncated at abstract opening.)\n3. PMID 41055229 — Evaluation of Owner-Reported Clinical Signs and Fecal Occult Blood Tests as Predictors of Equine Gastric Ulcer Syndrome in Competition Dressage Horses. (Journal of veterinary internal medicine, 2025). Abstract (opening): Equine gastric ulcer syndrome (EGUS) adversely affects the health, welfare, and performance of sports horses, requiring gastroscopy for definitive diagnosis. Owners frequently cons *[CC BY — Open Access, verbatim with attribution.]*\n4. PMID 41153946 — Incorporating a Behavioral Medicine Approach in the Multi-Modal Management of Chronic Equine Gastric Ulcer Syndrome (EGUS): A Clinical Commentary. (Animals : an open access journal from MDPI, 2025). Abstract (opening): Equine gastric ulcer syndrome (EGUS) refers to mucosal gastric disease in horses, including equine squamous gastric disease (ESGD) and equine glandular gastric disease (EGGD), whic *[CC BY — Open Access, verbatim with attribution.]*\n5. PMID 41227525 — Free Plasma Amino Acid Concentrations in Horses Fed Different Dosing Regimens of Hydrolysed Collagen. (Animals : an open access journal from MDPI, 2025). Abstract (opening): Hydrolysed collagen is used as a supplement for horses with osteoarthritis, hoof horn growth problems, and gastric ulcers. To determine the oral availability of a specific hydrolys *[CC BY — Open Access, verbatim with attribution.]*\n6. PMID 40204167 — *[Paraphrased derived summary — non-Open-Access source.]* A study of horses in the French Republican Guard cavalry regiment examined gastric-ulcer prevalence and its association with plasma gamma-glutamyl transpeptidase activity; equine gastric ulceration syndrome (EGUS) affects both glandular (EGGD) and squamous (ESGD) mucosa and is highly prevalent. (Source excerpt truncated at abstract opening.)\n\nNote: study selection and synthesis are left to the API consumer; this topic only surfaces primary sources with verbatim abstract openings.\n\nSource text: `pdf-raw/evidence/europepmc_evidence_equine_gastric_ulcer_diet_2026-07-22.txt` (Europe PMC REST + PubMed efetch, 2026-07-22).\n\n## License & attribution\n\nMixed licensing per COPYRIGHT_POLICY §3: Open Access (CC BY / CC BY-NC /\nCC BY-NC-ND) studies are reproduced verbatim with attribution under their specific\nCC license; non-Open-Access studies are paraphrased as derived fact summaries\n(numbers and proper nouns preserved, sentences rewritten). Original records:\n- https://pubmed.ncbi.nlm.nih.gov/40204167/\n- https://pubmed.ncbi.nlm.nih.gov/41055229/\n- https://pubmed.ncbi.nlm.nih.gov/41153946/\n- https://pubmed.ncbi.nlm.nih.gov/41227525/\n- https://pubmed.ncbi.nlm.nih.gov/42025860/\n- https://pubmed.ncbi.nlm.nih.gov/42218917/\n","sources":["Europe PMC — Pet horse — equine gastric ulcer syndrome (EGUS) — diet & nutrition management (Europe PMC) (retrieved 2026-07-22)"],"source":{"authority":"Europe PMC","title":"Pet horse — equine gastric ulcer syndrome (EGUS) — diet & nutrition management (Europe PMC)","url":"https://pubmed.ncbi.nlm.nih.gov/42218917/","retrieved":"2026-07-22","ref":"PMID 42218917","doc_type":"official PDF","source_document":"Veterinary / medical evidence (guideline or study) — PMID 42218917","verification_file":"pdf-raw/evidence/europepmc_evidence_equine_gastric_ulcer_diet_2026-07-22.txt"},"source_document":"Veterinary / medical evidence (guideline or study) — PMID 42218917","source_file":"pdf-raw/evidence/europepmc_evidence_equine_gastric_ulcer_diet_2026-07-22.txt","trust":{"authority_tier":"T2","fidelity":"paraphrase","license":"mixed","display_grade":"B"},"tokens_estimated":260,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}