PMID: 2494784Jan 1, 1989Paper

The significance of the incidence of coccidia of the Cryptosporidium species in the etiopathogenesis of neonatal diarrhea syndrome and enteritis in calves on the basis of simultaneous histopathologic and parasitologic studies

Veterinární medicína
F Stĕrba, I Sulcová

Abstract

In 1985, a histopathological examination was conducted in the ileum and a parasitological examination in the ileum and rectum of 345 emergency slaughtered calves. The pathogenic role of cryptosporidia was compared in two groups of calves: group A contained 184 calves (53.3%) with scours and enteritis, group B contained 161 calves (46.7%) with other types of disease. In both groups the calves were divided into four age categories: 7 to 10 days (7.8%), 11 to 14 days (29.3%), 15 to 21 days (53.0%), 22 days and older (9.9%). During the parallel examination by both methods, cryptosporidia were detected in 124 cases, i.e. at the total invasion extensity of 35.93%; in group A the cryptosporidia were found in 76 cases (22.02%) and in the group B in 48 cases (13.91%). As indicated by the results, cryptosporidiosis is a disease of polyfactorial origin and cryptosporidia must be taken into account as one of the enteropathogenic factors in the etiology of scours. It is confirmed by the positive findings of cryptosporidia in the calves of group B (29.81%) and the negative finding in group A (31.3%) that no clear relationship was demonstrated to exist between the positive findings of these protozoans and the clinical symptoms of the diseases...Continue Reading

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