Dietary risk factors and colonic pH and mineral concentrations in horses with enterolithiasis

Diana M. Hassel, Peter C. Rakestraw, Ian Gardner, Sharon Spier, Jack R. Snyder

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A prospective, unmatched case control study was performed to identify dietary and environmental risk factors for enterolithiasis in horses in California and to determine whether colonic ingesta analyses differed between horses with and without enteroliths. Forty-three horses with enterolithiasis were compared with 19 horses with surgical colic attributable to nonstrangulating obstruction of the colon without enteroliths. Colonic ingesta samples were collected at surgery from horses with enteroliths and control horses. Colonic pH and colonic concentrations of magnesium, phosphorus, sulfur, sodium, calcium, potassium, and nitrogen were measured. Questionnaires were distributed to owners to determine diet and management practices. Student's t-test and Mann-Whitney tests were used to evaluate differences in pH, dry matter content, percent nitrogen, and mineral content. Associations between dietary and management risk factors and enterolith occurrence were quantified by odds ratios. Mean pH of colonic contents from horses with enterolithiasis was significantly higher than for control horses. Horses with enterolithiasis had significantly lower percent dry matter in colonic fecal samples and higher mean mineral concentrations than controls. On the basis of reported feeding and management practices, horses with enterolithiasis were fed a significantly higher proportion of alfalfa in their diet and were less likely to have daily access to pasture grass than horses without enteroliths. Results suggest that decreasing alfalfa consumption and allowing daily access to pasture grazing might reduce the risk of enterolithiasis. Dietary modifications promoting acidification of colonic contents and dilution of minerals might be beneficial as preventive measures for enterolithiasis in horses.

Original languageEnglish (US)
Pages (from-to)346-349
Number of pages4
JournalJournal of Veterinary Internal Medicine
Volume18
Issue number3
DOIs
StatePublished - May 2004

Fingerprint

Horses
mineral content
Minerals
risk factors
horses
Medicago sativa
Practice Management
alfalfa
Nitrogen
pastures
Diet
Diet Therapy
Colic
colic
Poaceae
case-control studies
dry matter content
Sulfur
diet
odds ratio

Keywords

  • Alfalfa hay
  • Colic
  • Colon mineral content
  • Enteroliths

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Dietary risk factors and colonic pH and mineral concentrations in horses with enterolithiasis. / Hassel, Diana M.; Rakestraw, Peter C.; Gardner, Ian; Spier, Sharon; Snyder, Jack R.

In: Journal of Veterinary Internal Medicine, Vol. 18, No. 3, 05.2004, p. 346-349.

Research output: Contribution to journalArticle

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