Small Instestinal impaction causes total or partial obstruction of the instestinal lumen resulting in colic. The obstruction is most often associated with [[Ascarid Impaction - Horse|ascarid impaction]], ascarid infection<ref>Cribb NC, Cote NM, Bouré LP, Peregrine AS. (2006). ''Acute small intestinal obstruction associated with Parascaris equorum infection in young horses: 25 cases (1985-2004).''. New Zealand Veterinary Journal</ref> in young horses, or ileal impaction due to ingestion of bermuda grass in the USA or tapeworm infection in the UK. | Small Instestinal impaction causes total or partial obstruction of the instestinal lumen resulting in colic. The obstruction is most often associated with [[Ascarid Impaction - Horse|ascarid impaction]], ascarid infection<ref>Cribb NC, Cote NM, Bouré LP, Peregrine AS. (2006). ''Acute small intestinal obstruction associated with Parascaris equorum infection in young horses: 25 cases (1985-2004).''. New Zealand Veterinary Journal</ref> in young horses, or ileal impaction due to ingestion of bermuda grass in the USA or tapeworm infection in the UK. |