| the prevalence, relative abundance and site distribution of nematodes of the subfamily cyathostominae in horses killed in britain. | a total of 21 species of cyathostominae was found in the lumen of the large intestine of 86 mature horses of various ages and breeds killed in south-west england during 1972-1974. cylicostephanus longibursatus, c. goldi, c. calicatus, cyathostomum catinatum, c. coronatum and cylicocyclus nassatus were found in over 80% of the horses, while 12 of the remaining species were detected in less than 30%. quantitative studies on 55 horses showed the adult cyathostome burdens to rise to a sharp peak (av ... | 1976 | 993579 |