Abstract
Extract
Colitis X is a peracute, sporadic noncontagious disease affecting horses of all ages, characterized by sudden onset of shock, dehydration and foetid diarrhoea (Rooney et al., Citation1963; Pickrell, Citation1968). Rooney et al. (Citation1966) have described a form of colitis X without diarrhoea. Otubreaks of the disease which affected numerous horses under the same conditions of management have been described (Rooney et al., Citation1963; W. P. C. Richards, pers. comm.).